Add HandmadeMath.

Add simple morphing code.

.github/FUNDING.yml

@@ -1,13 +0,0 @@
-# These are supported funding model platforms
-
-github: syoyo
-#patreon: # Replace with a single Patreon username
-#open_collective: # Replace with a single Open Collective username
-#ko_fi: # Replace with a single Ko-fi username
-#tidelift: # Replace with a single Tidelift platform-name/package-name e.g., npm/babel
-#community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
-#liberapay: # Replace with a single Liberapay username
-#issuehunt: # Replace with a single IssueHunt username
-#otechie: # Replace with a single Otechie username
-#lfx_crowdfunding: # Replace with a single LFX Crowdfunding project-name e.g., cloud-foundry
-#custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']

.github/ISSUE_TEMPLATE/config.yml

@@ -1 +0,0 @@
-blank_issues_enabled: false

.github/ISSUE_TEMPLATE/issue-report.md

@@ -1,30 +0,0 @@
----
-name: Issue report
-about: Create a report
-title: ''
-labels: ''
-assignees: ''
-
----
-
-**Describe the issue**
-
-A clear and concise description of what the issue is.
-
-**To Reproduce**
-
-- OS
-- Compiler, compiler version, compile options
-- Please attach minimal and reproducible .glTF file if you got an issue related to .glTF data
-
-**Expected behaviour**
-
-A clear and concise description of what you expected to happen.
-
-**Screenshots**
-
-If applicable, add screenshots to help explain your problem.
-
-
-**Additional context**
-Add any other context about the problem here.

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,45 +0,0 @@
-## Description
-
-What does this PR do? Provide a brief summary of the changes. 
-
-## Type of Change
-
-- [ ] Bug fix
-- [ ] New feature
-- [ ] Refactoring (no functional changes)
-- [ ] Documentation update
-- [ ] Other (please describe):
-
-## Checklist
-
-### Required for All PRs
-
-- [ ] Reproducible glTF test file(s) are included (e.g., `models/regression/`, `tests/issue-***.gltf`, etc.)
-- [ ] Unit tests are written and pass locally (`cd tests && ./tester`)
-
-### Required for Feature PRs
-
-- [ ] Specification document is included (e.g., `docs/spec/<feature-name>.md`)
-  - The spec should cover: purpose, API design, usage examples, and edge cases
-
-### Security Policy
-
-This project manages CVE assignments exclusively through GitHub Security Advisories.
-PRs that include or reference independently obtained CVE IDs or external vulnerability disclosures will be closed.
-
-## Test Instructions
-
-How can reviewers verify your changes? 
-
-```
-# Example:
-cd build && cmake .. && make test
-```
-
-## Related Issues
-
-Link related issues: 
-
-## Additional Notes
-
-Any other context, screenshots, or information relevant to the review.

.github/workflows/c-cpp.yml

@@ -1,187 +0,0 @@
-name: C/C++ CI
-
-on: [push, pull_request]
-
-jobs:
-
-  # gcc4.8 is too old and ubuntu-18.04 image is not supported in GitHub Actions anymore,
-  # so disable this build.
-  ## compile with older gcc4.8
-  #build-gcc48:
-
-  #  runs-on: ubuntu-18.04
-  #  name: Build with gcc 4.8
-
-  #  steps:
-  #    - name: Checkout
-  #      uses: actions/checkout@v5
-
-  #    - name: Build
-  #      run: |
-  #          sudo apt-get update
-  #          sudo apt-get install -y build-essential
-  #          sudo apt-get install -y gcc-4.8 g++-4.8
-  #          g++-4.8 -std=c++11 -o loader_example loader_example.cc
-
-  #    - name: NoexceptBuild
-  #      run: |
-  #          g++-4.8 -DTINYGLTF_NOEXCEPTION -std=c++11 -o loader_example loader_example.cc
-
-  #    - name: RapidjsonBuild
-  #      run: |
-  #          git clone https://github.com/Tencent/rapidjson
-  #          g++-4.8 -DTINYGLTF_USE_RAPIDJSON -I./rapidjson/include/rapidjson -std=c++11 -o loader_example loader_example.cc
-
-  # compile with mingw gcc cross
-  build-mingw-cross:
-
-    runs-on: ubuntu-latest
-    name: Build with MinGW gcc cross
-
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v5
-
-      - name: Build
-        run: |
-            sudo apt-get update
-            sudo apt-get install -y build-essential
-            sudo apt-get install -y mingw-w64
-            x86_64-w64-mingw32-g++ -std=c++11 -o loader_example loader_example.cc
-
-  # Windows(x64) + Visual Studio 2022 build
-  # Assume windows-latest have VS2022 installed
-  build-windows-msvc:
-
-    runs-on: windows-latest
-    name: Build for Windows(x64, MSVC)
-
-    # Use system installed cmake
-    # https://help.github.com/en/actions/reference/software-installed-on-github-hosted-runners
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v5
-      - name: Configure
-        run: |
-          mkdir build
-          cd build
-          cmake --help
-          cmake -G "Visual Studio 17 2022" -A x64 -DTINYGLTF_BUILD_LOADER_EXAMPLE=On -DTINYGLTF_BUILD_GL_EXAMPLES=Off -DTINYGLTF_BUILD_VALIDATOR_EXAMPLE=On -DTINYGLTF_BUILD_TESTS=ON ..
-          cd ..
-      - name: Build
-        run: cmake --build build --config Release
-      - name: Run tests
-        run: ctest --test-dir build -C Release --output-on-failure
-
-
-  build-linux:
-
-    runs-on: ubuntu-latest
-    name: Buld with gcc
-
-    steps:
-    - uses: actions/checkout@v5
-    - name: build
-      run: |
-        g++ -std=c++11 -o loader_example loader_example.cc
-    - name: test
-      run: |
-        ./loader_example models/Cube/Cube.gltf
-
-    - name: tests
-      run: |
-        cd tests
-        g++ -I../  -std=c++11 -g -O0 -o tester tester.cc
-        ./tester
-        cd ..
-
-    - name: noexcept_tests
-      run: |
-        cd tests
-        g++ -DTINYGLTF_NOEXCEPTION -I../  -std=c++11 -g -O0 -o tester_noexcept tester.cc
-        ./tester_noexcept
-        cd ..
-
-    - name: v3_c_tests
-      run: |
-        cd tests
-        cc -I../ -std=c11 -g -O0 -DTINYGLTF3_ENABLE_FS \
-           -o tester_v3_c tester_v3_c.c ../tiny_gltf_v3.c
-        ./tester_v3_c
-        cc -I../ -std=c11 -g -O0 -DTINYGLTF3_ENABLE_FS \
-           -o tester_v3_c_v1port tester_v3_c_v1port.c ../tiny_gltf_v3.c
-        ./tester_v3_c_v1port
-        cc -I../ -std=c11 -g -O0 \
-           -o tester_v3_json_c tester_v3_json_c.c
-        ./tester_v3_json_c
-        cc -I../ -std=c11 -ffreestanding -g -O0 \
-           -o tester_v3_freestanding tester_v3_freestanding.c
-        ./tester_v3_freestanding
-        cd ..
-
-
-  build-rapidjson-linux:
-
-    runs-on: ubuntu-latest
-    name: Buld with gcc + rapidjson
-
-    steps:
-    - uses: actions/checkout@v5
-    - name: build
-      run: |
-        git clone https://github.com/Tencent/rapidjson
-        g++ -v
-        g++ -DTINYGLTF_USE_RAPIDJSON -I./rapidjson/include/rapidjson -std=c++11 -o loader_example loader_example.cc
-
-    - name: loader_example_test
-      run: |
-        ./loader_example models/Cube/Cube.gltf
-
-    - name: tests
-      run: |
-        cd tests
-        g++ -DTINYGLTF_USE_RAPIDJSON -I../rapidjson/include/rapidjson -I../  -std=c++11 -g -O0 -o tester tester.cc
-        ./tester
-        cd ..
-
-    - name: noexcept_tests
-      run: |
-        cd tests
-        g++ -DTINYGLTF_USE_RAPIDJSON -I../rapidjson/include/rapidjson -DTINYGLTF_NOEXCEPTION -I../  -std=c++11 -g -O0 -o tester_noexcept tester.cc
-        ./tester_noexcept
-        cd ..
-
-  # Cross-compile for aarch64 linux target
-  build-cross-aarch64:
-
-    runs-on: ubuntu-latest
-    name: Build on cross aarch64
-
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v5
-      - name: Build
-        run: |
-            sudo apt-get update
-            sudo apt-get install -y build-essential
-            sudo apt-get install -y gcc-aarch64-linux-gnu g++-aarch64-linux-gnu
-
-            git clone https://github.com/Tencent/rapidjson
-            aarch64-linux-gnu-g++ -DTINYGLTF_USE_RAPIDJSON -I./rapidjson/include/rapidjson -std=c++11 -g -O0 -o loader_example loader_example.cc
-
-  # macOS clang
-  build-macos:
-
-    runs-on: macos-latest
-    name: Build on macOS
-
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v5
-      - name: Build
-        run: |
-            clang++ -std=c++11 -g -O0 -o loader_example loader_example.cc
-            ./loader_example models/Cube/Cube.gltf
-
-            git clone https://github.com/Tencent/rapidjson
-            clang++ -DTINYGLTF_USE_RAPIDJSON -I./rapidjson/include/rapidjson -std=c++11 -g -O0 -o loader_example loader_example.cc

.github/workflows/ci.yml

@@ -1,537 +0,0 @@
-name: Comprehensive CI
-
-on:
-  push:
-    branches:
-      - master
-      - release
-      - devel
-  pull_request:
-    branches:
-      - master
-      - release
-      - devel
-  workflow_dispatch:
-
-permissions:
-  contents: read
-
-jobs:
-  # Linux x64 - GCC
-  linux-gcc-x64:
-    runs-on: ubuntu-latest
-    name: Linux x64 (GCC)
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v5
-
-      - name: Configure
-        run: cmake -B build -DTINYGLTF_BUILD_LOADER_EXAMPLE=ON -DTINYGLTF_BUILD_TESTS=ON
-
-      - name: Build
-        run: cmake --build build
-
-      - name: Run loader_example
-        run: ./build/loader_example models/Cube/Cube.gltf
-
-      - name: Run tests
-        run: ctest --test-dir build --output-on-failure
-
-  # Linux x64 - Clang 21
-  linux-clang-x64:
-    runs-on: ubuntu-24.04
-    name: Linux x64 (Clang 21)
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v5
-
-      - name: Install Clang 21
-        run: |
-          wget https://apt.llvm.org/llvm.sh
-          chmod +x llvm.sh
-          sudo ./llvm.sh 21
-
-      - name: Configure
-        run: |
-          cmake -B build -DCMAKE_C_COMPILER=clang-21 -DCMAKE_CXX_COMPILER=clang++-21 -DTINYGLTF_BUILD_LOADER_EXAMPLE=ON -DTINYGLTF_BUILD_TESTS=ON
-
-      - name: Build
-        run: cmake --build build
-
-      - name: Run loader_example
-        run: |
-          ./build/loader_example models/Cube/Cube.gltf
-
-      - name: Run tests
-        run: ctest --test-dir build --output-on-failure
-
-  # Linux ARM64 - GCC (native)
-  linux-arm64:
-    runs-on: ubuntu-24.04-arm
-    name: Linux ARM64 (GCC)
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v5
-
-      - name: Configure
-        run: cmake -B build -DTINYGLTF_BUILD_LOADER_EXAMPLE=ON -DTINYGLTF_BUILD_TESTS=ON
-
-      - name: Build
-        run: cmake --build build
-
-      - name: Run loader_example
-        run: ./build/loader_example models/Cube/Cube.gltf
-
-      - name: Run tests
-        run: ctest --test-dir build --output-on-failure
-
-  # macOS ARM64 Apple Silicon
-  macos-arm64:
-    runs-on: macos-14
-    name: macOS ARM64 Apple Silicon (Clang)
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v5
-
-      - name: Configure
-        run: cmake -B build -DTINYGLTF_BUILD_LOADER_EXAMPLE=ON -DTINYGLTF_BUILD_TESTS=ON
-
-      - name: Build
-        run: cmake --build build
-
-      - name: Run loader_example
-        run: ./build/loader_example models/Cube/Cube.gltf
-
-      - name: Run tests
-        run: ctest --test-dir build --output-on-failure
-
-  # Windows x64 - MSVC
-  windows-msvc-x64:
-    runs-on: windows-latest
-    name: Windows x64 (MSVC)
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v5
-
-      - name: Configure
-        run: |
-          mkdir build
-          cd build
-          cmake -G "Visual Studio 17 2022" -A x64 -DTINYGLTF_BUILD_LOADER_EXAMPLE=On -DTINYGLTF_BUILD_GL_EXAMPLES=Off -DTINYGLTF_BUILD_VALIDATOR_EXAMPLE=Off -DTINYGLTF_BUILD_TESTS=ON ..
-
-      - name: Build
-        run: cmake --build build --config Release
-
-      - name: Run loader_example
-        run: |
-          .\build\Release\loader_example.exe models\Cube\Cube.gltf
-
-      - name: Run tests
-        run: ctest --test-dir build -C Release --output-on-failure
-
-  # Windows x86 - MSVC
-  windows-msvc-x86:
-    runs-on: windows-latest
-    name: Windows x86 (MSVC)
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v5
-
-      - name: Configure
-        run: |
-          mkdir build
-          cd build
-          cmake -G "Visual Studio 17 2022" -A Win32 -DTINYGLTF_BUILD_LOADER_EXAMPLE=On -DTINYGLTF_BUILD_GL_EXAMPLES=Off -DTINYGLTF_BUILD_VALIDATOR_EXAMPLE=Off -DTINYGLTF_BUILD_TESTS=ON ..
-
-      - name: Build
-        run: cmake --build build --config Release
-
-      - name: Run tests
-        run: ctest --test-dir build -C Release --output-on-failure
-
-  # Windows ARM64 - MSVC (cross-compile)
-  windows-msvc-arm64:
-    runs-on: windows-latest
-    name: Windows ARM64 (MSVC) - Cross-compile
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v5
-
-      - name: Configure
-        run: |
-          mkdir build
-          cd build
-          cmake -G "Visual Studio 17 2022" -A ARM64 -DTINYGLTF_BUILD_LOADER_EXAMPLE=On -DTINYGLTF_BUILD_GL_EXAMPLES=Off -DTINYGLTF_BUILD_VALIDATOR_EXAMPLE=Off ..
-
-      - name: Build
-        run: cmake --build build --config Release
-
-  # Windows MinGW - MSYS2
-  windows-mingw-msys2:
-    runs-on: windows-latest
-    name: Windows x64 (MinGW MSYS2)
-    defaults:
-      run:
-        shell: msys2 {0}
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v5
-
-      - name: Setup MSYS2
-        uses: msys2/setup-msys2@v2
-        with:
-          msystem: UCRT64
-          install: base-devel
-          pacboy: >-
-            cc:p cmake:p ninja:p
-          update: true
-          release: false
-
-      - name: Build with CMake
-        run: |
-          cmake -G"Ninja" -S . -B build -DTINYGLTF_BUILD_TESTS=ON
-          cmake --build build
-
-      - name: Run loader_example
-        run: |
-          ./build/loader_example models/Cube/Cube.gltf
-
-      - name: Run tests
-        run: ctest --test-dir build --output-on-failure
-
-  # Linux -> Windows MinGW Cross-compile
-  linux-mingw-cross:
-    runs-on: ubuntu-latest
-    name: Linux→Windows (MinGW Cross) - Build Only
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v5
-
-      - name: Install MinGW
-        run: |
-          sudo apt-get update
-          sudo apt-get install -y build-essential mingw-w64
-
-      - name: Build
-        run: |
-          x86_64-w64-mingw32-g++ -std=c++11 -o loader_example.exe loader_example.cc
-
-  # Special Configuration: No Exceptions
-  linux-noexception:
-    runs-on: ubuntu-latest
-    name: Linux x64 (GCC) - No Exceptions
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v5
-
-      - name: Build loader_example
-        run: |
-          g++ -DTINYGLTF_NOEXCEPTION -std=c++11 -o loader_example loader_example.cc
-
-      - name: Run loader_example
-        run: |
-          ./loader_example models/Cube/Cube.gltf
-
-      - name: Build and run unit tests
-        run: |
-          cd tests
-          g++ -DTINYGLTF_NOEXCEPTION -I../ -std=c++11 -g -O0 -o tester_noexcept tester.cc
-          ./tester_noexcept
-
-  # Special Configuration: Header-Only Mode
-  linux-header-only:
-    runs-on: ubuntu-latest
-    name: Linux x64 (GCC) - Header-Only Mode
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v5
-
-      - name: Build with CMake Header-Only
-        run: |
-          mkdir build
-          cmake -B build -DTINYGLTF_HEADER_ONLY=ON -DTINYGLTF_BUILD_LOADER_EXAMPLE=ON -DTINYGLTF_BUILD_TESTS=ON
-          cmake --build build
-
-      - name: Run loader_example
-        run: |
-          ./build/loader_example models/Cube/Cube.gltf
-
-      - name: Run tests
-        run: ctest --test-dir build --output-on-failure
-
-  # v3 C tests through Meson on the primary desktop platforms.
-  v3-c-meson:
-    runs-on: ${{ matrix.os }}
-    name: v3 C Meson (${{ matrix.os }})
-    strategy:
-      fail-fast: false
-      matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v5
-
-      - name: Install Meson
-        run: python -m pip install meson ninja
-
-      - name: Configure
-        run: meson setup build-meson -Dtests=true
-
-      - name: Build
-        run: meson compile -C build-meson
-
-      - name: Run v3 C tests
-        run: meson test -C build-meson --print-errorlogs
-
-  # Special Configuration: RapidJSON Backend
-  linux-rapidjson:
-    runs-on: ubuntu-latest
-    name: Linux x64 (GCC) - RapidJSON Backend
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v5
-
-      - name: Clone RapidJSON
-        run: |
-          git clone https://github.com/Tencent/rapidjson
-
-      - name: Configure
-        run: |
-          cmake -B build -DTINYGLTF_USE_RAPIDJSON=ON -DTINYGLTF_BUILD_LOADER_EXAMPLE=ON -DTINYGLTF_BUILD_TESTS=ON -DCMAKE_PREFIX_PATH=$PWD/rapidjson
-
-      - name: Build
-        run: cmake --build build
-
-      - name: Run loader_example
-        run: |
-          ./build/loader_example models/Cube/Cube.gltf
-
-      - name: Run tests
-        run: ctest --test-dir build --output-on-failure
-
-  # Special Configuration: AddressSanitizer
-  linux-asan:
-    runs-on: ubuntu-latest
-    name: Linux x64 (Clang) - AddressSanitizer
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v5
-
-      - name: Build loader_example with ASan
-        run: |
-          clang++ -fsanitize=address -std=c++11 -g -O1 -o loader_example loader_example.cc
-
-      - name: Run loader_example
-        run: |
-          ./loader_example models/Cube/Cube.gltf
-
-      - name: Build and run unit tests with ASan
-        run: |
-          cd tests
-          clang++ -fsanitize=address -I../ -std=c++11 -g -O1 -o tester tester.cc
-          ./tester
-
-  # Special Configuration: UndefinedBehaviorSanitizer
-  linux-ubsan:
-    runs-on: ubuntu-latest
-    name: Linux x64 (Clang) - UndefinedBehaviorSanitizer
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v5
-
-      - name: Build loader_example with UBSan
-        run: |
-          clang++ -fsanitize=undefined -std=c++11 -g -O1 -o loader_example loader_example.cc
-
-      - name: Run loader_example
-        run: |
-          ./loader_example models/Cube/Cube.gltf
-
-      - name: Build and run unit tests with UBSan
-        run: |
-          cd tests
-          clang++ -fsanitize=undefined -I../ -std=c++11 -g -O1 -o tester tester.cc
-          ./tester
-
-  # v3 C runtime: internal security regression tests + ported v1 unit tests.
-  v3-c-tests:
-    runs-on: ubuntu-latest
-    name: v3 C tests (Linux x64, GCC)
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v5
-
-      - name: Build tester_v3_c
-        run: |
-          cd tests
-          cc -I../ -std=c11 -g -O0 -Wall -Wextra -Wpedantic -Werror -DTINYGLTF3_ENABLE_FS \
-             -o tester_v3_c tester_v3_c.c ../tiny_gltf_v3.c
-
-      - name: Build tester_v3_c_v1port
-        run: |
-          cd tests
-          cc -I../ -std=c11 -g -O0 -Wall -Wextra -Wpedantic -Werror -DTINYGLTF3_ENABLE_FS \
-             -o tester_v3_c_v1port tester_v3_c_v1port.c ../tiny_gltf_v3.c
-
-      - name: Run tester_v3_c (security regressions)
-        run: |
-          cd tests
-          ./tester_v3_c
-
-      - name: Run tester_v3_c_v1port (18 ported unit tests)
-        run: |
-          cd tests
-          ./tester_v3_c_v1port
-
-  # v3 C runtime under stock Ubuntu clang.
-  v3-c-tests-clang:
-    runs-on: ubuntu-latest
-    name: v3 C tests (Linux x64, Clang)
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v5
-
-      - name: Install clang
-        run: |
-          sudo apt-get update
-          sudo apt-get install -y clang
-
-      - name: Build tester_v3_c
-        run: |
-          cd tests
-          clang -I../ -std=c11 -g -O0 -Werror -Weverything \
-                -Wno-padded -Wno-unsafe-buffer-usage -Wno-switch-default \
-                -Wno-format-nonliteral -Wno-float-equal -Wno-cast-align \
-                -Wno-declaration-after-statement -Wno-unknown-warning-option \
-                -Wno-pre-c11-compat \
-                -DTINYGLTF3_ENABLE_FS \
-                -o tester_v3_c tester_v3_c.c ../tiny_gltf_v3.c
-
-      - name: Build tester_v3_c_v1port
-        run: |
-          cd tests
-          clang -I../ -std=c11 -g -O0 -Werror -Weverything \
-                -Wno-padded -Wno-unsafe-buffer-usage -Wno-switch-default \
-                -Wno-format-nonliteral -Wno-float-equal -Wno-cast-align \
-                -Wno-declaration-after-statement -Wno-unknown-warning-option \
-                -Wno-pre-c11-compat \
-                -DTINYGLTF3_ENABLE_FS \
-                -o tester_v3_c_v1port tester_v3_c_v1port.c ../tiny_gltf_v3.c
-
-      - name: Run tester_v3_c
-        run: |
-          cd tests
-          ./tester_v3_c
-
-      - name: Run tester_v3_c_v1port
-        run: |
-          cd tests
-          ./tester_v3_c_v1port
-
-  # v3 C runtime under bleeding-edge clang 21 (matches local dev environment).
-  v3-c-tests-clang21:
-    runs-on: ubuntu-24.04
-    name: v3 C tests (Linux x64, Clang 21)
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v5
-
-      - name: Install clang 21
-        run: |
-          wget https://apt.llvm.org/llvm.sh
-          chmod +x llvm.sh
-          sudo ./llvm.sh 21
-
-      - name: Build tester_v3_c
-        run: |
-          cd tests
-          clang-21 -I../ -std=c11 -g -O0 -Werror -Weverything \
-                   -Wno-padded -Wno-unsafe-buffer-usage -Wno-switch-default \
-                   -Wno-format-nonliteral -Wno-float-equal -Wno-cast-align \
-                   -Wno-declaration-after-statement -Wno-unknown-warning-option \
-                -Wno-pre-c11-compat \
-                   -DTINYGLTF3_ENABLE_FS \
-                   -o tester_v3_c tester_v3_c.c ../tiny_gltf_v3.c
-
-      - name: Build tester_v3_c_v1port
-        run: |
-          cd tests
-          clang-21 -I../ -std=c11 -g -O0 -Werror -Weverything \
-                   -Wno-padded -Wno-unsafe-buffer-usage -Wno-switch-default \
-                   -Wno-format-nonliteral -Wno-float-equal -Wno-cast-align \
-                   -Wno-declaration-after-statement -Wno-unknown-warning-option \
-                -Wno-pre-c11-compat \
-                   -DTINYGLTF3_ENABLE_FS \
-                   -o tester_v3_c_v1port tester_v3_c_v1port.c ../tiny_gltf_v3.c
-
-      - name: Run tester_v3_c
-        run: |
-          cd tests
-          ./tester_v3_c
-
-      - name: Run tester_v3_c_v1port
-        run: |
-          cd tests
-          ./tester_v3_c_v1port
-
-  # v3 C runtime built with MSVC at warning-level 4 (/W4 /WX).
-  v3-c-tests-msvc:
-    runs-on: windows-latest
-    name: v3 C tests (Windows x64, MSVC /W4)
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v5
-
-      - name: Build and run tester_v3_c
-        shell: cmd
-        run: |
-          call "C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Auxiliary\Build\vcvars64.bat"
-          cd tests
-          cl /nologo /W4 /WX /std:c11 /Zi /Od /D_CRT_SECURE_NO_WARNINGS /DTINYGLTF3_ENABLE_FS /I.. tester_v3_c.c ..\tiny_gltf_v3.c /Fe:tester_v3_c.exe
-          tester_v3_c.exe
-
-      - name: Build and run tester_v3_c_v1port
-        shell: cmd
-        run: |
-          call "C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Auxiliary\Build\vcvars64.bat"
-          cd tests
-          cl /nologo /W4 /WX /std:c11 /Zi /Od /D_CRT_SECURE_NO_WARNINGS /DTINYGLTF3_ENABLE_FS /I.. tester_v3_c_v1port.c ..\tiny_gltf_v3.c /Fe:tester_v3_c_v1port.exe
-          tester_v3_c_v1port.exe
-
-  # v3 C runtime under ASan + UBSan for memory-safety + UB checks.
-  v3-c-tests-sanitizers:
-    runs-on: ubuntu-latest
-    name: v3 C tests (Clang ASan + UBSan)
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v5
-
-      - name: Build tester_v3_c with ASan + UBSan
-        run: |
-          cd tests
-          clang -I../ -std=c11 -g -O1 -DTINYGLTF3_ENABLE_FS \
-                -fsanitize=address,undefined -fno-omit-frame-pointer \
-                -o tester_v3_c tester_v3_c.c ../tiny_gltf_v3.c
-
-      - name: Build tester_v3_c_v1port with ASan + UBSan
-        run: |
-          cd tests
-          clang -I../ -std=c11 -g -O1 -DTINYGLTF3_ENABLE_FS \
-                -fsanitize=address,undefined -fno-omit-frame-pointer \
-                -o tester_v3_c_v1port tester_v3_c_v1port.c ../tiny_gltf_v3.c
-
-      - name: Run tester_v3_c
-        env:
-          ASAN_OPTIONS: detect_leaks=1:halt_on_error=1
-          UBSAN_OPTIONS: print_stacktrace=1:halt_on_error=1
-        run: |
-          cd tests
-          ./tester_v3_c
-
-      - name: Run tester_v3_c_v1port
-        env:
-          ASAN_OPTIONS: detect_leaks=1:halt_on_error=1
-          UBSAN_OPTIONS: print_stacktrace=1:halt_on_error=1
-        run: |
-          cd tests
-          ./tester_v3_c_v1port

.github/workflows/mingw-w64-msys2.yml

@@ -1,53 +0,0 @@
-name: MSYS2 MinGW-w64 Windows 64bit Build
-
-on:
-  push:
-    branches:
-      - release
-      - devel
-    paths:
-    - 'tiny_gltf.*'
-    - 'tinygltf_json_c.h'
-    - 'CMakeLists.txt'
-    - 'meson.build'
-    - 'meson_options.txt'
-    - 'tests/tester_v3*.c'
-    - '.github/workflows/mingw-w64-msys2.yml'
-  pull_request:
-  workflow_dispatch:
-
-jobs:
-  mingw-w64-msys2-build:
-    name: MSYS2 MinGW-w64 Windows Build
-    runs-on: windows-latest
-    defaults:
-      run:
-        shell: msys2 {0}
-    steps:
-      - uses: actions/checkout@v5
-
-      - name: Install core & build dependencies
-        uses: msys2/setup-msys2@v2
-        with:
-          msystem: UCRT64
-          install: base-devel
-          pacboy: >-
-            cc:p cmake:p ninja:p
-          update: true
-          release: false
-
-      - name: Configure
-        run: |
-          cmake \
-            -G"Ninja" \
-            -S . \
-            -B build \
-            -DTINYGLTF_BUILD_TESTS=ON
-
-      - name: Build
-        run: |
-          cmake --build build
-
-      - name: Run tests
-        run: |
-          ctest --test-dir build --output-on-failure

.gitignore

@@ -1,5 +1,4 @@
 # CMake
-/build/
 CMakeCache.txt
 CMakeFiles
 CMakeScripts
@@ -22,13 +21,9 @@ premake5.tar.gz
 *.vcxproj*
 .vs
 
-# default cmake build dir
-build/
-
 #binary directories
 bin/
 obj/
-out/
 
 #runtime gui config
 imgui.ini
@@ -70,39 +65,6 @@ imgui.ini
 *.app
 
 loader_example
-# Compiled test binaries (built by tests/Makefile, CMakeLists.txt, meson.build)
 tests/tester
 tests/tester_noexcept
-tests/tester_customjson
-tests/tester_intensive_customjson
-tests/tester_v3
-tests/tester_v3_c
-tests/tester_v3_c_cpp
-tests/tester_v3_c_v1port
-tests/tester_v3_c_v1port_cpp
-tests/tester_v3_freestanding
-tests/tester_v3_json_c
-tests/fuzzer/fuzz_gltf
-tests/fuzzer/fuzz_gltf_customjson
-tests/issue-97.gltf
-tests/issue-261.gltf
-tests/issue-495-external.gltf
-# Test-generated output files (written by tester.cc during test run)
-tests/Cube.gltf
-tests/Cube.bin
-tests/Cube.glb
-tests/Cube_BaseColor.png
-tests/Cube_MetallicRoughness.png
-tests/Cube_with_embedded_images.gltf
-tests/Cube_with_image_files.gltf
-tests/tmp.glb
-tests/ issue-236.gltf
-tests/ issue-236.bin
-tests/ 2x2 image  has multiple      spaces.png
 
-# unignore
-!Makefile
-!examples/build-gltf/Makefile
-!examples/raytrace/cornellbox_suzanne.obj
-!tests/Makefile
-!tools/windows/premake5.exe

.travis-before-install.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+if [[ "$TRAVIS_OS_NAME" == "osx" ]]
+then
+    brew upgrade
+    curl -o premake5.tar.gz https://github.com/premake/premake-core/releases/download/v5.0.0-alpha12/premake-5.0.0-alpha12-macosx.tar.gz
+else
+    wget https://github.com/premake/premake-core/releases/download/v5.0.0-alpha12/premake-5.0.0-alpha12-linux.tar.gz -O premake5.tar.gz
+fi
+tar xzf premake5.tar.gz

.travis.yml

@@ -0,0 +1,47 @@
+language: cpp
+sudo: false
+matrix:
+  include:
+  - addons: &1
+      apt:
+        sources:
+        - george-edison55-precise-backports
+        - ubuntu-toolchain-r-test
+        - llvm-toolchain-trusty-3.9
+        packages:
+        - g++-4.9
+        - clang-3.9
+    compiler: clang
+    env: COMPILER_VERSION=3.9 BUILD_TYPE=Debug
+  - addons: *1
+    compiler: clang
+    env: COMPILER_VERSION=3.9 BUILD_TYPE=Release
+  - addons: &2
+      apt:
+        sources:
+        - george-edison55-precise-backports
+        - ubuntu-toolchain-r-test
+        packages:
+        - g++-4.9
+    compiler: gcc
+    env: COMPILER_VERSION=4.9 BUILD_TYPE=Debug EXTRA_CXXFLAGS="-fsanitize=address"
+  - addons: *2
+    compiler: gcc
+    env: COMPILER_VERSION=4.9 BUILD_TYPE=Release EXTRA_CXXFLAGS="-fsanitize=address"
+  - addons: *1
+    compiler: clang
+    env: COMPILER_VERSION=3.9 BUILD_TYPE=Debug CFLAGS="-O0" CXXFLAGS="-O0"
+
+before_install:
+  - ./.travis-before-install.sh
+
+
+script:
+  - export CC="${CC}-${COMPILER_VERSION}"
+  - export CXX="${CXX}-${COMPILER_VERSION}"
+  - ${CC} -v
+  - ${CXX} ${EXTRA_CXXFLAGS} -std=c++11 -Wall -g -o loader_example loader_example.cc
+  - ./loader_example ./models/Cube/Cube.gltf
+  - cd examples/raytrace
+  - ../../premake5 gmake
+  - make

CMakeLists.txt

@@ -1,157 +0,0 @@
-cmake_minimum_required(VERSION 3.6)
-
-project(tinygltf)
-
-include(GNUInstallDirs)
-include(CMakePackageConfigHelpers)
-
-set(CMAKE_CXX_STANDARD 11)
-set(CMAKE_CXX_STANDARD_REQUIRED On)
-set(CMAKE_CXX_EXTENSIONS Off)
-set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
-
-option(TINYGLTF_BUILD_LOADER_EXAMPLE "Build loader_example(load glTF and dump infos)" ON)
-option(TINYGLTF_BUILD_GL_EXAMPLES "Build GL exampels(requires glfw, OpenGL, etc)" OFF)
-option(TINYGLTF_BUILD_VALIDATOR_EXAMPLE "Build validator exampe" OFF)
-option(TINYGLTF_BUILD_BUILDER_EXAMPLE "Build glTF builder example" OFF)
-option(TINYGLTF_BUILD_TESTS "Build unit tests" OFF)
-option(TINYGLTF_HEADER_ONLY "On: header-only mode. Off: create tinygltf library(No TINYGLTF_IMPLEMENTATION required in your project)" OFF)
-option(TINYGLTF_INSTALL "Install tinygltf files during install step. Usually set to OFF if you include tinygltf through add_subdirectory()" ON)
-option(TINYGLTF_INSTALL_VENDOR "Install vendored nlohmann/json and nothings/stb headers" ON)
-option(TINYGLTF_USE_CUSTOM_JSON "Use the built-in fast JSON parser (tinygltf_json.h) instead of nlohmann/json" OFF)
-
-if (TINYGLTF_BUILD_LOADER_EXAMPLE)
-  add_executable(loader_example
-    loader_example.cc
-    )
-endif (TINYGLTF_BUILD_LOADER_EXAMPLE)
-
-if (TINYGLTF_BUILD_GL_EXAMPLES)
-  add_subdirectory( examples/gltfutil )
-  add_subdirectory( examples/glview )
-endif (TINYGLTF_BUILD_GL_EXAMPLES)
-
-if (TINYGLTF_BUILD_VALIDATOR_EXAMPLE)
-  add_subdirectory( examples/validator )
-endif (TINYGLTF_BUILD_VALIDATOR_EXAMPLE)
-
-if (TINYGLTF_BUILD_BUILDER_EXAMPLE)
-  add_subdirectory ( examples/build-gltf )
-endif (TINYGLTF_BUILD_BUILDER_EXAMPLE)
-
-if (TINYGLTF_BUILD_TESTS)
-  enable_testing()
-
-  function(add_tinygltf_v3_c_test target)
-    add_executable(${target} ${ARGN})
-    target_include_directories(${target} PRIVATE
-      ${CMAKE_CURRENT_SOURCE_DIR}
-      ${CMAKE_CURRENT_SOURCE_DIR}/tests
-    )
-    set_target_properties(${target} PROPERTIES
-      C_STANDARD 11
-      C_STANDARD_REQUIRED ON
-      C_EXTENSIONS OFF
-    )
-    add_test(NAME ${target} COMMAND ${target} WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/tests)
-  endfunction()
-
-  add_executable(tester tests/tester.cc)
-  target_include_directories(tester PRIVATE
-    ${CMAKE_CURRENT_SOURCE_DIR}
-    ${CMAKE_CURRENT_SOURCE_DIR}/tests
-  )
-  add_test(NAME tester COMMAND tester WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/tests)
-
-  # Build and run tests with the custom JSON backend enabled to catch regressions
-  add_executable(tester_customjson tests/tester.cc)
-  target_include_directories(tester_customjson PRIVATE
-    ${CMAKE_CURRENT_SOURCE_DIR}
-    ${CMAKE_CURRENT_SOURCE_DIR}/tests
-  )
-  target_compile_definitions(tester_customjson PRIVATE TINYGLTF_USE_CUSTOM_JSON)
-  add_test(NAME tester_customjson COMMAND tester_customjson WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/tests)
-
-  # Intensive parser tests for the custom JSON backend
-  add_executable(tester_intensive_customjson tests/tester_intensive_customjson.cc)
-  target_include_directories(tester_intensive_customjson PRIVATE
-    ${CMAKE_CURRENT_SOURCE_DIR}
-    ${CMAKE_CURRENT_SOURCE_DIR}/tests
-  )
-  target_compile_definitions(tester_intensive_customjson PRIVATE TINYGLTF_USE_CUSTOM_JSON)
-  add_test(NAME tester_intensive_customjson COMMAND tester_intensive_customjson WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/tests)
-
-  add_tinygltf_v3_c_test(tester_v3_c tests/tester_v3_c.c tiny_gltf_v3.c)
-  target_compile_definitions(tester_v3_c PRIVATE TINYGLTF3_ENABLE_FS)
-
-  add_tinygltf_v3_c_test(tester_v3_c_v1port tests/tester_v3_c_v1port.c tiny_gltf_v3.c)
-  target_compile_definitions(tester_v3_c_v1port PRIVATE TINYGLTF3_ENABLE_FS)
-
-  add_tinygltf_v3_c_test(tester_v3_json_c tests/tester_v3_json_c.c)
-
-  add_tinygltf_v3_c_test(tester_v3_freestanding tests/tester_v3_freestanding.c)
-  if (CMAKE_C_COMPILER_ID MATCHES "Clang|GNU")
-    target_compile_options(tester_v3_freestanding PRIVATE -ffreestanding)
-  endif()
-endif (TINYGLTF_BUILD_TESTS)
-
-#
-# for add_subdirectory and standalone build
-#
-if (TINYGLTF_HEADER_ONLY)
-  add_library(tinygltf INTERFACE)
-
-  target_include_directories(tinygltf
-          INTERFACE
-          $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
-          $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
-  )
-
-else (TINYGLTF_HEADER_ONLY)
-  add_library(tinygltf)
-  target_sources(tinygltf PRIVATE
-          ${CMAKE_CURRENT_SOURCE_DIR}/tiny_gltf.cc)
-  target_include_directories(tinygltf
-          INTERFACE
-          $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
-          $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
-          )
-endif (TINYGLTF_HEADER_ONLY)
-
-if (TINYGLTF_USE_CUSTOM_JSON)
-  if (TINYGLTF_HEADER_ONLY)
-    target_compile_definitions(tinygltf INTERFACE TINYGLTF_USE_CUSTOM_JSON)
-  else ()
-    target_compile_definitions(tinygltf PUBLIC TINYGLTF_USE_CUSTOM_JSON)
-  endif ()
-endif ()
-
-if (TINYGLTF_INSTALL)
-  install(TARGETS tinygltf EXPORT tinygltfTargets)
-  install(EXPORT tinygltfTargets NAMESPACE tinygltf:: FILE TinyGLTFTargets.cmake DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/tinygltf)
-  configure_package_config_file(${CMAKE_CURRENT_SOURCE_DIR}/cmake/TinyGLTFConfig.cmake.in ${CMAKE_CURRENT_BINARY_DIR}/TinyGLTFConfig.cmake INSTALL_DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/TinyGLTFConfig.cmake DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/tinygltf)
-  # Do not install .lib even if !TINYGLTF_HEADER_ONLY
-
-  INSTALL ( FILES
-    tiny_gltf.h
-    tiny_gltf_v3.h
-    tiny_gltf_v3.c
-    tinygltf_json.h
-    tinygltf_json_c.h
-    ${TINYGLTF_EXTRA_SOUECES}
-    DESTINATION
-    include
-    )
-
-    if(TINYGLTF_INSTALL_VENDOR)
-      INSTALL ( FILES
-        json.hpp
-        stb_image.h
-        stb_image_write.h
-        DESTINATION
-        include
-        )
-    endif()
-
-endif(TINYGLTF_INSTALL)

Makefile

@@ -2,12 +2,8 @@
 # Use this for strict compilation check(will work on clang 3.8+)
 #EXTRA_CXXFLAGS := -fsanitize=address -Wall -Werror -Weverything -Wno-c++11-long-long -Wno-c++98-compat
 
-# With draco
-# EXTRA_CXXFLAGS := -I../draco/src/ -I../draco/build -DTINYGLTF_ENABLE_DRACO -L../draco/build
-# EXTRA_LINKFLAGS := -L../draco/build/ -ldracodec -ldraco
-
 all:
-	clang++  $(EXTRA_CXXFLAGS) -std=c++11 -g -O0 -o loader_example loader_example.cc $(EXTRA_LINKFLAGS)
+	clang++  $(EXTRA_CXXFLAGS) -std=c++11 -g -O0 -o loader_example loader_example.cc
 
 lint:
-	deps/cpplint.py tiny_gltf.h
+	./cpplint.py tiny_gltf_loader.h

README.md

@@ -1,101 +1,22 @@
 # Header only C++ tiny glTF library(loader/saver).
 
-`TinyGLTF` is a header only C++ glTF 2.0 https://github.com/KhronosGroup/glTF library.
+`TinyGLTF` is a header only C++11 glTF 2.0 https://github.com/KhronosGroup/glTF library.
 
-## TinyGLTF v3 (new major release)
-
-**`tiny_gltf_v3.h`** is the new major version of TinyGLTF.
-The new C implementation (`tiny_gltf_v3.c` + `tinygltf_json_c.h`) is currently **experimental**.
-
-### What's new in v3
-
-v3 is a ground-up rewrite with a C-centric, low-overhead design:
-
-- **Pure C POD structs** — no STL containers in the public API; easy to bind to other languages.
-- **Arena-based memory management** — all parse-time allocations come from a single arena; a single `tg3_model_free()` frees everything.
-- **Structured error reporting** — `tg3_error_stack` provides machine-readable errors with severity levels and source locations.
-- **Custom JSON backend** — backed by `tinygltf_json_c.h`, a locale-independent pure-C JSON parser/serializer used by the v3 runtime.
-- **Streaming callbacks** — opt-in streaming parse/write via user-supplied callbacks.
-- **No RTTI, no exceptions required** — suitable for embedded and game-engine use.
-- **Opt-in filesystem and image I/O** — `TINYGLTF3_ENABLE_FS` / `TINYGLTF3_ENABLE_STB_IMAGE` are off by default; you control when and how assets are loaded.
-- **C++20 coroutine facade** (optional, auto-detected). C17/C++17 default.
-- **Hardened against untrusted input** — URI sanitization, post-parse index-bounds validation (default-on, opt-out via `tg3_parse_options.validate_indices = 0`), strict numeric range checks; exercised by a libFuzzer harness and by a cross-version verifier that compares parsed output against the v1 C++ reference loader. See the `Security Considerations` block at the top of `tiny_gltf_v3.h`.
-
-### Quick start (v3)
-
-Copy `tiny_gltf_v3.h`, `tiny_gltf_v3.c`, and `tinygltf_json_c.h` to your project.
-Compile `tiny_gltf_v3.c` as C11 or newer. Define `TINYGLTF3_ENABLE_FS` when
-building `tiny_gltf_v3.c` if you want `tg3_parse_file()` to use stdio-backed
-filesystem helpers. The legacy `TINYGLTF3_IMPLEMENTATION` include path remains
-available for compatibility.
-
-```c
-#include "tiny_gltf_v3.h"
-```
-
-Loading a glTF file:
-
-```c
-tg3_parse_options opts;
-tg3_error_stack errors;
-tg3_model model;
-
-tg3_parse_options_init(&opts);
-tg3_error_stack_init(&errors);
-
-tg3_error_code err = tg3_parse_file(&model, &errors, "scene.gltf", 10, &opts);
-if (err != TG3_OK) {
-    for (uint32_t i = 0; i < errors.count; i++) {
-        fprintf(stderr, "[%d] %s\n", (int)errors.entries[i].severity,
-                errors.entries[i].message ? errors.entries[i].message : "(null)");
-    }
-}
-// ... use model ...
-tg3_model_free(&model);
-tg3_error_stack_free(&errors);
-```
-
-### Testing & verification
-
-The v3 C runtime ships with three layers of automated coverage:
-
-- **`tests/tester_v3_c.c`** — internal unit checks plus security regression tests (path traversal, negative `byteStride`, OOB indices, error-message lifetime, …). Build via `make` in `tests/`; run `./tester_v3_c` for the internal suite or `./tester_v3_c <file.gltf|file.glb>` to parse a single asset.
-- **`test_runner.py`** — a cross-version verifier that runs the v1 C++ reference loader (`loader_example`) and the v3 C tester against every model in `glTF-Sample-Models/2.0`, then diffs a structured DIGEST block (buffer FNV64 hashes, accessor/bufferView fields, primitive attribute maps, node TRS, material PBR factors, skin/animation/scene topology, …). v1 is the ground truth.
-- **`tests/v3/fuzzer/`** — libFuzzer harness with ASan + UBSan (`make run` builds and runs `fuzz_gltf_v3_c`). Crafted regression inputs live in `tests/v3/security/` and are seeded into `tests/v3/fuzzer/corpus/`.
+`TinyGLTF` uses Niels Lohmann's json library(https://github.com/nlohmann/json), so now it requires C++11 compiler.
+If you are looking for old, C++03 version, please use `devel-picojson` branch.  
 
 ## Status
 
-> ⚠️ **v2 deprecation notice:** `tiny_gltf.h` (v2) remains fully functional and is still supported,
-> but it is now in **maintenance mode only** — no new features will be added.
-> v2 will be **sunset after mid-2026**. `tiny_gltf_v3.h` is the intended successor, but the new C v3 runtime is still **experimental**.
-
-TinyGLTF v3's C runtime (`tiny_gltf_v3.h` + `tiny_gltf_v3.c`) is available for evaluation and early adoption,
-but its API/behavior may still change while the implementation matures.
-
-Currently TinyGLTF v2 is stable and in maintenance mode. No drastic changes and feature additions planned.
- - v2.9.0 Various fixes and improvements. Filesystem callback API change.
- - v2.8.0 Add URICallbacks for custom URI handling in Buffer and Image. PR#397
- - v2.7.0 Change WriteImageDataFunction user callback function signature. PR#393
- - v2.6.0 Support serializing sparse accessor(Thanks to @fynv).
- - v2.5.0 Add SetPreserveImageChannels() option to load image data as is.
- - v2.4.0 Experimental RapidJSON support. Experimental C++14 support(C++14 may give better performance)
- - v2.3.0 Modified Material representation according to glTF 2.0 schema(and introduced TextureInfo class)
- - v2.2.0 release(Support loading 16bit PNG. Sparse accessor support)
- - v2.1.0 release(Draco decoding support)
- - v2.0.0 release(22 Aug, 2018)!
-
-### Branches
-
-* `sajson` : Use sajson to parse JSON. Parsing only but faster compile time(2x reduction compared to json.hpp and RapidJson), but not well maintained.
+v2.0.0 release(22 Aug, 2018)! 
 
 ## Builds
 
-![C/C++ CI](https://github.com/syoyo/tinygltf/workflows/C/C++%20CI/badge.svg)
+[![Build Status](https://travis-ci.org/syoyo/tinygltf.svg?branch=devel)](https://travis-ci.org/syoyo/tinygltf)
+
+[![Build status](https://ci.appveyor.com/api/projects/status/warngenu9wjjhlm8?svg=true)](https://ci.appveyor.com/project/syoyo/tinygltf)
 
 ## Features
 
-Probably mostly feature-complete. Last missing feature is Draco encoding: https://github.com/syoyo/tinygltf/issues/207
-
 * Written in portable C++. C++-11 with STL dependency only.
   * [x] macOS + clang(LLVM)
   * [x] iOS + clang
@@ -103,74 +24,46 @@ Probably mostly feature-complete. Last missing feature is Draco encoding: https:
   * [x] Windows + MinGW
   * [x] Windows + Visual Studio 2015 Update 3 or later.
     * Visual Studio 2013 is not supported since they have limited C++11 support and failed to compile `json.hpp`.
-  * [x] Android NDK
   * [x] Android + CrystaX(NDK drop-in replacement) GCC
   * [x] Web using Emscripten(LLVM)
 * Moderate parsing time and memory consumption.
 * glTF specification v2.0.0
   * [x] ASCII glTF
-    * [x] Load
-    * [x] Save
   * [x] Binary glTF(GLB)
-    * [x] Load
-    * [x] Save(.bin embedded .glb)
+  * [x] PBR material description
 * Buffers
-  * [x] Parse BASE64 encoded embedded buffer data(DataURI).
+  * [x] Parse BASE64 encoded embedded buffer fata(DataURI).
   * [x] Load `.bin` file.
 * Image(Using stb_image)
-  * [x] Parse BASE64 encoded embedded image data(DataURI).
+  * [x] Parse BASE64 encoded embedded image fata(DataURI).
   * [x] Load external image file.
-  * [x] Load PNG(8bit and 16bit)
-  * [x] Load JPEG(8bit only)
-  * [x] Load BMP
-  * [x] Load GIF
-  * [x] Custom Image decoder callback(e.g. for decoding OpenEXR image)
-* Morph traget
-  * [x] Sparse accessor
-* Load glTF from memory
-* Custom callback handler
-  * [x] Image load
-  * [x] Image save
-* Extensions
-  * [x] Draco mesh decoding
-  * [ ] Draco mesh encoding
-
-## Note on extension property
-
-In extension(`ExtensionMap`), JSON number value is parsed as int or float(number) and stored as `tinygltf::Value` object. If you want a floating point value from `tinygltf::Value`, use `GetNumberAsDouble()` method.
-
-`IsNumber()` returns true if the underlying value is an int value or a floating point value.
+  * [x] PNG(8bit only)
+  * [x] JPEG(8bit only)
+  * [x] BMP
+  * [x] GIF
 
 ## Examples
 
 * [glview](examples/glview) : Simple glTF geometry viewer.
 * [validator](examples/validator) : Simple glTF validator with JSON schema.
-* [basic](examples/basic) : Basic glTF viewer with texturing support.
-* [build-gltf](examples/build-gltf) : Build simple glTF scene from a scratch.
 
-### WASI/WASM build
-
-Users who want to run TinyGLTF securely and safely(e.g. need to handle malcious glTF file to serve online glTF conver),
-I recommend to build TinyGLTF for WASM target.
-WASI build example is located in [wasm](wasm) .
+## Projects using TinyGLTF
 
+* px_render Single header C++ Libraries for Thread Scheduling, Rendering, and so on... https://github.com/pplux/px
+* Physical based rendering with Vulkan using glTF 2.0 models https://github.com/SaschaWillems/Vulkan-glTF-PBR
+* GLTF loader plugin for OGRE 2.1. Support for PBR materials via HLMS/PBS https://github.com/Ybalrid/Ogre_glTF
+* [TinyGltfImporter](http://doc.magnum.graphics/magnum/classMagnum_1_1Trade_1_1TinyGltfImporter.html) plugin for [Magnum](https://github.com/mosra/magnum), a lightweight and modular C++11/C++14 graphics middleware for games and data visualization.
+* Your projects here! (Please send PR)
 
 ## TODOs
 
-* [ ] Robust URI decoding/encoding. https://github.com/syoyo/tinygltf/issues/369
-* [ ] Mesh Compression/decompression(Open3DGC, etc)
-  * [x] Load Draco compressed mesh
-  * [ ] Save Draco compressed mesh
-  * [ ] Open3DGC?
-* [x] Support `extensions` and `extras` property
+* [ ] Write C++ code generator from jSON schema for robust parsing.
+* [x] Serialization
+* [ ] Compression/decompression(Open3DGC, etc)
+* [ ] Support `extensions` and `extras` property
 * [ ] HDR image?
   * [ ] OpenEXR extension through TinyEXR.
-* [ ] 16bit PNG support in Serialization
-* [ ] Write example and tests for `animation` and `skin`
-
-### Optional
-
-* [ ] Write C++ code generator which emits C++ code from JSON schema for robust parsing?
+* [ ] Write tests for `animation` and `skin` 
 
 ## Licenses
 
@@ -200,14 +93,13 @@ Copy `stb_image.h`, `stb_image_write.h`, `json.hpp` and `tiny_gltf.h` to your pr
 
 using namespace tinygltf;
 
-Model model;
+Model model; 
 TinyGLTF loader;
 std::string err;
 std::string warn;
-std::string filename = "input.gltf";
-
-bool ret = loader.LoadASCIIFromFile(&model, &err, &warn, filename);
-//bool ret = loader.LoadBinaryFromFile(&model, &err, &warn, filename); // for binary glTF(.glb)
+  
+bool ret = loader.LoadASCIIFromFile(&model, &err, &warn, argv[1]);
+//bool ret = loader.LoadBinaryFromFile(&model, &err, &warn, argv[1]); // for binary glTF(.glb) 
 
 if (!warn.empty()) {
   printf("Warn: %s\n", warn.c_str());
@@ -218,61 +110,26 @@ if (!err.empty()) {
 }
 
 if (!ret) {
-  printf("Failed to parse glTF: %s\n", filename.c_str());
+  printf("Failed to parse glTF\n");
+  return -1;
 }
 ```
 
-#### Loader options
-
-* `TinyGLTF::SetPreserveimageChannels(bool onoff)`. `true` to preserve image channels as stored in image file for loaded image. `false` by default for backward compatibility(image channels are widen to `RGBA` 4 channels). Effective only when using builtin image loader(STB image loader).
-
 ## Compile options
 
 * `TINYGLTF_NOEXCEPTION` : Disable C++ exception in JSON parsing. You can use `-fno-exceptions` or by defining the symbol `JSON_NOEXCEPTION` and `TINYGLTF_NOEXCEPTION`  to fully remove C++ exception codes when compiling TinyGLTF.
 * `TINYGLTF_NO_STB_IMAGE` : Do not load images with stb_image. Instead use `TinyGLTF::SetImageLoader(LoadimageDataFunction LoadImageData, void *user_data)` to set a callback for loading images.
 * `TINYGLTF_NO_STB_IMAGE_WRITE` : Do not write images with stb_image_write. Instead use `TinyGLTF::SetImageWriter(WriteimageDataFunction WriteImageData, void *user_data)` to set a callback for writing images.
-* `TINYGLTF_NO_EXTERNAL_IMAGE` : Do not try to load external image file. This option would be helpful if you do not want to load image files during glTF parsing.
-* `TINYGLTF_ANDROID_LOAD_FROM_ASSETS`: Load all files from packaged app assets instead of the regular file system. **Note:** You must pass a valid asset manager from your android app to `tinygltf::asset_manager` beforehand.
-* `TINYGLTF_ENABLE_DRACO`: Enable Draco compression. User must provide include path and link correspnding libraries in your project file.
-* `TINYGLTF_NO_INCLUDE_JSON `: Disable including `json.hpp` from within `tiny_gltf.h` because it has been already included before or you want to include it using custom path before including `tiny_gltf.h`.
-* `TINYGLTF_NO_INCLUDE_RAPIDJSON `: Disable including RapidJson's header files from within `tiny_gltf.h` because it has been already included before or you want to include it using custom path before including `tiny_gltf.h`.
-* `TINYGLTF_NO_INCLUDE_STB_IMAGE `: Disable including `stb_image.h` from within `tiny_gltf.h` because it has been already included before or you want to include it using custom path before including `tiny_gltf.h`.
-* `TINYGLTF_NO_INCLUDE_STB_IMAGE_WRITE `: Disable including `stb_image_write.h` from within `tiny_gltf.h` because it has been already included before or you want to include it using custom path before including `tiny_gltf.h`.
-* `TINYGLTF_USE_RAPIDJSON` : Use RapidJSON as a JSON parser/serializer. RapidJSON files are not included in TinyGLTF repo. Please set an include path to RapidJSON if you enable this feature.
-
-
-## CMake options
-
-You can add tinygltf using `add_subdirectory` feature.
-If you add tinygltf to your project using `add_subdirectory`, it would be better to set `TINYGLTF_HEADER_ONLY` on(just add an include path to tinygltf) and `TINYGLTF_INSTALL` off(Which does not install tinygltf files).
-
-```
-// Your project's CMakeLists.txt
-...
-
-set(TINYGLTF_HEADER_ONLY ON CACHE INTERNAL "" FORCE)
-set(TINYGLTF_INSTALL OFF CACHE INTERNAL "" FORCE)
-add_subdirectory(/path/to/tinygltf)
-```
-
-NOTE: Using tinygltf as a submodule doesn't automatically add the headers to your include path (as standard for many libraries). To get this functionality, add the following to the CMakeLists.txt file from above:
-
-```
-target_include_directories(${PROJECT_NAME} PRIVATE "/path/to/tinygltf")
-```
 
 ### Saving gltTF 2.0 model
-
-* Buffers.
+* [ ] Buffers.
   * [x] To file
   * [x] Embedded
   * [ ] Draco compressed?
 * [x] Images
   * [x] To file
   * [x] Embedded
-* Binary(.glb)
-  * [x] .bin embedded single .glb
-  * [ ] External .bin
+* [ ] Binary(.glb)
 
 ## Running tests.
 
@@ -280,7 +137,7 @@ target_include_directories(${PROJECT_NAME} PRIVATE "/path/to/tinygltf")
 
 #### Setup
 
-Python required.
+Python 2.6 or 2.7 required.
 Git clone https://github.com/KhronosGroup/glTF-Sample-Models to your local dir.
 
 #### Run parsing test
@@ -300,17 +157,8 @@ $ ./tester
 $ ./tester_noexcept
 ```
 
-### Fuzzing tests
-
-See `tests/fuzzer` for details.
-
-After running fuzzer on Ryzen9 3950X a week, at least `LoadASCIIFromString` looks safe except for out-of-memory error in Fuzzer.
-We may be better to introduce bounded memory size checking when parsing glTF data.
-
 ## Third party licenses
 
 * json.hpp : Licensed under the MIT License <http://opensource.org/licenses/MIT>. Copyright (c) 2013-2017 Niels Lohmann <http://nlohmann.me>.
 * stb_image : Public domain.
 * catch : Copyright (c) 2012 Two Blue Cubes Ltd. All rights reserved. Distributed under the Boost Software License, Version 1.0.
-* RapidJSON : Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. http://rapidjson.org/
-* dlib(uridecode, uriencode) : Copyright (C) 2003  Davis E. King Boost Software License 1.0. http://dlib.net/dlib/server/server_http.cpp.html

appveyor.yml

@@ -0,0 +1,18 @@
+version: 0.9.{build}
+
+image:
+  - Visual Studio 2015
+
+# scripts that runs after repo cloning.
+install:
+  - vcsetup.bat
+
+platform: x64
+configuration: Release
+
+build:
+  parallel: true
+  project: TinyGLTFSolution.sln
+
+after_build:
+  - examples.bat

benchmark/Makefile

@@ -1,70 +0,0 @@
-# benchmark/Makefile — Build and run tinygltf v3 benchmarks
-#
-# Targets:
-#   make           — build gen_synthetic + bench_v3
-#   make generate  — generate synthetic test scenes
-#   make run       — run benchmarks on all generated scenes
-#   make report    — run benchmarks and produce CSV report
-#   make clean     — remove binaries and generated scenes
-
-CXX       ?= g++
-CXXFLAGS  ?= -O2 -std=c++17 -Wall -Wextra -Wno-unused-function
-CXXFLAGS  += -fno-rtti -fno-exceptions
-INCLUDES  = -I..
-
-BINDIR    = .
-GEN       = $(BINDIR)/gen_synthetic
-BENCH_V3  = $(BINDIR)/bench_v3
-
-# Iteration counts
-ITERATIONS ?= 10
-WARMUP     ?= 2
-PREFIX     ?= synthetic
-
-.PHONY: all generate run report clean
-
-all: $(GEN) $(BENCH_V3)
-
-$(GEN): gen_synthetic.cpp
-	$(CXX) $(CXXFLAGS) -o $@ $<
-
-$(BENCH_V3): bench_v3.cpp ../tiny_gltf_v3.h ../tiny_gltf_v3.c ../tinygltf_json_c.h
-	$(CXX) $(CXXFLAGS) $(INCLUDES) -o $@ $<
-
-# Generate synthetic scenes of varying sizes
-generate: $(GEN)
-	@echo "=== Generating synthetic scenes ==="
-	./$(GEN) --prefix $(PREFIX)
-	@echo ""
-	@echo "Generated files (binary + GLB):"
-	@ls -lh $(PREFIX)_*.gltf $(PREFIX)_*.glb $(PREFIX)_*.bin 2>/dev/null || true
-
-# Run benchmarks on all generated scenes
-run: $(BENCH_V3) generate
-	@echo ""
-	@echo "================================================================="
-	@echo "  tinygltf v3 Benchmark"
-	@echo "================================================================="
-	@echo ""
-	@for f in $(PREFIX)_*.glb $(PREFIX)_*.gltf; do \
-		if [ -f "$$f" ]; then \
-			./$(BENCH_V3) "$$f" --iterations $(ITERATIONS) --warmup $(WARMUP); \
-			echo ""; \
-		fi; \
-	done
-
-# Run benchmarks and produce CSV report
-report: $(BENCH_V3) generate
-	@echo "file,size_bytes,iterations,parse_min_ms,parse_max_ms,parse_avg_ms,parse_median_ms,throughput_mbs,arena_peak_bytes,meshes,nodes,accessors,materials,animations" > benchmark_report.csv
-	@for f in $(PREFIX)_*.glb $(PREFIX)_*.gltf; do \
-		if [ -f "$$f" ]; then \
-			./$(BENCH_V3) "$$f" --iterations $(ITERATIONS) --warmup $(WARMUP) --csv | tail -1 >> benchmark_report.csv; \
-		fi; \
-	done
-	@echo "=== Report written to benchmark_report.csv ==="
-	@cat benchmark_report.csv | column -t -s,
-
-clean:
-	rm -f $(GEN) $(BENCH_V3)
-	rm -f $(PREFIX)_*.gltf $(PREFIX)_*.glb $(PREFIX)_*.bin
-	rm -f benchmark_report.csv

benchmark/bench_v3.cpp

@@ -1,414 +0,0 @@
-/*
- * bench_v3.cpp — Benchmark tinygltf v3 parser: parse speed & memory.
- *
- * Measures:
- *   - File read time
- *   - JSON parse + model build time
- *   - Peak arena memory usage
- *   - Throughput (MB/s)
- *
- * Usage:
- *   bench_v3 <file.gltf|file.glb> [--iterations N] [--warmup N] [--quiet]
- *   bench_v3 --batch <file1> <file2> ... [--iterations N]
- */
-
-#define TINYGLTF3_IMPLEMENTATION
-#define TINYGLTF3_ENABLE_FS
-#include "tiny_gltf_v3.h"
-
-#include <cstdio>
-#include <cstdlib>
-#include <cstring>
-#include <cmath>
-#include <vector>
-#include <string>
-#include <algorithm>
-#include <chrono>
-
-#if defined(__linux__)
-#include <sys/resource.h>
-#endif
-
-/* ------------------------------------------------------------------ */
-/* Timing helpers                                                     */
-/* ------------------------------------------------------------------ */
-
-using Clock = std::chrono::high_resolution_clock;
-using TimePoint = Clock::time_point;
-
-static double elapsed_ms(TimePoint start, TimePoint end) {
-    return std::chrono::duration<double, std::milli>(end - start).count();
-}
-
-/* ------------------------------------------------------------------ */
-/* Memory tracking allocator                                          */
-/* ------------------------------------------------------------------ */
-
-struct MemTracker {
-    size_t current;
-    size_t peak;
-    size_t total_allocs;
-    size_t total_frees;
-};
-
-static void *tracked_alloc(size_t size, void *ud) {
-    MemTracker *mt = (MemTracker *)ud;
-    void *ptr = malloc(size);
-    if (ptr) {
-        mt->current += size;
-        if (mt->current > mt->peak) mt->peak = mt->current;
-        mt->total_allocs++;
-    }
-    return ptr;
-}
-
-static void *tracked_realloc(void *ptr, size_t old_size, size_t new_size, void *ud) {
-    MemTracker *mt = (MemTracker *)ud;
-    void *new_ptr = realloc(ptr, new_size);
-    if (new_ptr) {
-        mt->current -= old_size;
-        mt->current += new_size;
-        if (mt->current > mt->peak) mt->peak = mt->current;
-    }
-    return new_ptr;
-}
-
-static void tracked_free(void *ptr, size_t size, void *ud) {
-    MemTracker *mt = (MemTracker *)ud;
-    if (ptr) {
-        mt->current -= size;
-        mt->total_frees++;
-        free(ptr);
-    }
-}
-
-/* ------------------------------------------------------------------ */
-/* RSS measurement (Linux)                                            */
-/* ------------------------------------------------------------------ */
-
-static size_t get_rss_bytes() {
-#if defined(__linux__)
-    FILE *f = fopen("/proc/self/statm", "r");
-    if (!f) return 0;
-    long pages = 0;
-    if (fscanf(f, "%*s %ld", &pages) != 1) pages = 0;
-    fclose(f);
-    return (size_t)pages * 4096;
-#else
-    return 0;
-#endif
-}
-
-/* ------------------------------------------------------------------ */
-/* Benchmark result                                                   */
-/* ------------------------------------------------------------------ */
-
-struct BenchResult {
-    std::string filename;
-    uint64_t    file_size;
-    int         iterations;
-
-    /* Parse timing (ms) */
-    double parse_min;
-    double parse_max;
-    double parse_avg;
-    double parse_median;
-
-    /* Memory */
-    size_t arena_peak;     /* Peak arena allocation */
-    size_t rss_before;
-    size_t rss_after;
-
-    /* Model stats */
-    uint32_t meshes;
-    uint32_t nodes;
-    uint32_t accessors;
-    uint32_t materials;
-    uint32_t animations;
-    uint32_t buffers;
-    uint32_t buffer_views;
-    uint32_t images;
-    uint32_t textures;
-
-    /* Derived */
-    double throughput_mbs; /* MB/s based on median */
-};
-
-/* ------------------------------------------------------------------ */
-/* Run benchmark for a single file                                    */
-/* ------------------------------------------------------------------ */
-
-static BenchResult bench_file(const char *filename, int iterations, int warmup,
-                               bool quiet, int float32_mode = 0,
-                               int skip_extras_values = 0,
-                               int borrow_input_buffers = 0) {
-    BenchResult r = {};
-    r.filename = filename;
-    r.iterations = iterations;
-
-    /* Read file into memory */
-    FILE *f = fopen(filename, "rb");
-    if (!f) {
-        fprintf(stderr, "ERROR: Cannot open '%s'\n", filename);
-        return r;
-    }
-    fseek(f, 0, SEEK_END);
-    long sz = ftell(f);
-    fseek(f, 0, SEEK_SET);
-    if (sz <= 0) { fclose(f); return r; }
-
-    std::vector<uint8_t> data((size_t)sz);
-    size_t rd = fread(data.data(), 1, (size_t)sz, f);
-    fclose(f);
-    if ((long)rd != sz) { return r; }
-
-    r.file_size = (uint64_t)sz;
-
-    /* Extract base dir */
-    std::string path(filename);
-    std::string base_dir;
-    size_t sep = path.find_last_of("/\\");
-    if (sep != std::string::npos) base_dir = path.substr(0, sep);
-
-    /* Warmup iterations (not measured) */
-    for (int i = 0; i < warmup; ++i) {
-        tg3_model model;
-        tg3_error_stack errors;
-        tg3_error_stack_init(&errors);
-        tg3_parse_auto(&model, &errors, data.data(), data.size(),
-                       base_dir.c_str(), (uint32_t)base_dir.size(), NULL);
-        tg3_model_free(&model);
-        tg3_error_stack_free(&errors);
-    }
-
-    /* Benchmark iterations */
-    std::vector<double> times;
-    times.reserve(iterations);
-
-    MemTracker tracker_best;
-    memset(&tracker_best, 0, sizeof(tracker_best));
-
-    r.rss_before = get_rss_bytes();
-
-    for (int i = 0; i < iterations; ++i) {
-        MemTracker tracker;
-        memset(&tracker, 0, sizeof(tracker));
-
-        tg3_parse_options opts;
-        tg3_parse_options_init(&opts);
-        opts.memory.allocator.alloc = tracked_alloc;
-        opts.memory.allocator.realloc = tracked_realloc;
-        opts.memory.allocator.free = tracked_free;
-        opts.memory.allocator.user_data = &tracker;
-        opts.parse_float32 = float32_mode;
-        opts.skip_extras_values = skip_extras_values;
-        opts.borrow_input_buffers = borrow_input_buffers;
-
-        tg3_model model;
-        tg3_error_stack errors;
-        tg3_error_stack_init(&errors);
-
-        TimePoint t0 = Clock::now();
-
-        tg3_error_code err = tg3_parse_auto(&model, &errors,
-                                             data.data(), data.size(),
-                                             base_dir.c_str(),
-                                             (uint32_t)base_dir.size(),
-                                             &opts);
-
-        TimePoint t1 = Clock::now();
-        double ms = elapsed_ms(t0, t1);
-        times.push_back(ms);
-
-        /* Capture model stats on first successful iteration */
-        if (i == 0 && err == TG3_OK) {
-            r.meshes = model.meshes_count;
-            r.nodes = model.nodes_count;
-            r.accessors = model.accessors_count;
-            r.materials = model.materials_count;
-            r.animations = model.animations_count;
-            r.buffers = model.buffers_count;
-            r.buffer_views = model.buffer_views_count;
-            r.images = model.images_count;
-            r.textures = model.textures_count;
-        }
-
-        if (tracker.peak > tracker_best.peak) {
-            tracker_best = tracker;
-        }
-
-        tg3_model_free(&model);
-        tg3_error_stack_free(&errors);
-
-        if (err != TG3_OK && !quiet) {
-            fprintf(stderr, "  Parse error on iteration %d: code %d\n", i, (int)err);
-        }
-    }
-
-    r.rss_after = get_rss_bytes();
-    r.arena_peak = tracker_best.peak;
-
-    /* Compute stats */
-    std::sort(times.begin(), times.end());
-    r.parse_min = times.front();
-    r.parse_max = times.back();
-    double sum = 0;
-    for (double t : times) sum += t;
-    r.parse_avg = sum / times.size();
-    r.parse_median = times[times.size() / 2];
-
-    /* Throughput: file_size / median_time */
-    if (r.parse_median > 0) {
-        r.throughput_mbs = ((double)r.file_size / (1024.0 * 1024.0)) /
-                           (r.parse_median / 1000.0);
-    }
-
-    return r;
-}
-
-/* ------------------------------------------------------------------ */
-/* Print results                                                      */
-/* ------------------------------------------------------------------ */
-
-static const char *human_bytes(size_t bytes, char *buf, size_t buf_sz) {
-    if (bytes >= 1024ULL * 1024 * 1024)
-        snprintf(buf, buf_sz, "%.2f GB", (double)bytes / (1024.0 * 1024 * 1024));
-    else if (bytes >= 1024 * 1024)
-        snprintf(buf, buf_sz, "%.2f MB", (double)bytes / (1024.0 * 1024));
-    else if (bytes >= 1024)
-        snprintf(buf, buf_sz, "%.2f KB", (double)bytes / 1024.0);
-    else
-        snprintf(buf, buf_sz, "%zu B", bytes);
-    return buf;
-}
-
-static void print_result(const BenchResult &r) {
-    char buf1[64], buf2[64];
-
-    printf("┌─────────────────────────────────────────────────────────────────┐\n");
-    printf("│ %-63s │\n", r.filename.c_str());
-    printf("├─────────────────────────────────────────────────────────────────┤\n");
-    printf("│ File size:      %-47s │\n", human_bytes((size_t)r.file_size, buf1, sizeof(buf1)));
-    printf("│ Iterations:     %-47d │\n", r.iterations);
-    printf("│                                                                 │\n");
-    printf("│ Parse time (ms):                                                │\n");
-    printf("│   min:    %10.3f                                            │\n", r.parse_min);
-    printf("│   max:    %10.3f                                            │\n", r.parse_max);
-    printf("│   avg:    %10.3f                                            │\n", r.parse_avg);
-    printf("│   median: %10.3f                                            │\n", r.parse_median);
-    printf("│                                                                 │\n");
-    printf("│ Throughput:     %-47s │\n",
-           (snprintf(buf1, sizeof(buf1), "%.2f MB/s", r.throughput_mbs), buf1));
-    printf("│ Arena peak:     %-47s │\n", human_bytes(r.arena_peak, buf1, sizeof(buf1)));
-    if (r.rss_before > 0) {
-        printf("│ RSS before:     %-47s │\n", human_bytes(r.rss_before, buf1, sizeof(buf1)));
-        printf("│ RSS after:      %-47s │\n", human_bytes(r.rss_after, buf2, sizeof(buf2)));
-    }
-    printf("│                                                                 │\n");
-    printf("│ Model: %u meshes, %u nodes, %u accessors, %u materials",
-           r.meshes, r.nodes, r.accessors, r.materials);
-    printf("        │\n");
-    printf("│        %u animations, %u buffers, %u images",
-           r.animations, r.buffers, r.images);
-    printf("                       │\n");
-    printf("└─────────────────────────────────────────────────────────────────┘\n");
-}
-
-static void print_csv_header() {
-    printf("file,size_bytes,iterations,parse_min_ms,parse_max_ms,parse_avg_ms,"
-           "parse_median_ms,throughput_mbs,arena_peak_bytes,"
-           "meshes,nodes,accessors,materials,animations\n");
-}
-
-static void print_csv_row(const BenchResult &r) {
-    printf("%s,%lu,%d,%.3f,%.3f,%.3f,%.3f,%.2f,%zu,%u,%u,%u,%u,%u\n",
-           r.filename.c_str(), (unsigned long)r.file_size, r.iterations,
-           r.parse_min, r.parse_max, r.parse_avg, r.parse_median,
-           r.throughput_mbs, r.arena_peak,
-           r.meshes, r.nodes, r.accessors, r.materials, r.animations);
-}
-
-/* ------------------------------------------------------------------ */
-/* Main                                                               */
-/* ------------------------------------------------------------------ */
-
-static void usage() {
-    fprintf(stderr,
-        "Usage:\n"
-        "  bench_v3 <file> [--iterations N] [--warmup N] [--csv] [--quiet]\n"
-        "  bench_v3 --batch <file1> [file2] ... [--iterations N] [--csv]\n"
-        "\n"
-        "Options:\n"
-        "  --iterations N   Number of timed parse iterations (default: 10)\n"
-        "  --warmup N       Number of warmup iterations (default: 2)\n"
-        "  --csv            Output in CSV format\n"
-        "  --quiet          Suppress per-iteration error messages\n"
-        "  --batch          Benchmark multiple files\n"
-        "  --float32        Parse JSON floats as float32 (faster, less precise)\n"
-        "  --skip-extras-values\n"
-        "                   Skip materializing extras/unknown extension values\n"
-        "  --borrow-input-buffers\n"
-        "                   Let GLB buffers reference caller-owned input bytes\n");
-}
-
-int main(int argc, char **argv) {
-    if (argc < 2) { usage(); return 1; }
-
-    int iterations = 10;
-    int warmup = 2;
-    bool csv = false;
-    bool quiet = false;
-    int float32_mode = 0;
-    int skip_extras_values = 0;
-    int borrow_input_buffers = 0;
-    std::vector<std::string> files;
-
-    for (int i = 1; i < argc; ++i) {
-        if (strcmp(argv[i], "--iterations") == 0 && i + 1 < argc) {
-            iterations = atoi(argv[++i]);
-        } else if (strcmp(argv[i], "--warmup") == 0 && i + 1 < argc) {
-            warmup = atoi(argv[++i]);
-        } else if (strcmp(argv[i], "--csv") == 0) {
-            csv = true;
-        } else if (strcmp(argv[i], "--quiet") == 0) {
-            quiet = true;
-        } else if (strcmp(argv[i], "--float32") == 0) {
-            float32_mode = 1;
-        } else if (strcmp(argv[i], "--skip-extras-values") == 0) {
-            skip_extras_values = 1;
-        } else if (strcmp(argv[i], "--borrow-input-buffers") == 0) {
-            borrow_input_buffers = 1;
-        } else if (strcmp(argv[i], "--batch") == 0) {
-            /* batch mode: just collect files */
-        } else if (argv[i][0] != '-') {
-            files.push_back(argv[i]);
-        }
-    }
-
-    if (files.empty()) { usage(); return 1; }
-
-    if (csv) print_csv_header();
-
-    for (const auto &file : files) {
-        if (!csv && !quiet) {
-            printf("Benchmarking: %s (%d iterations, %d warmup%s)\n",
-                   file.c_str(), iterations, warmup,
-                   float32_mode ? ", float32" :
-                   skip_extras_values ? ", skip extras" :
-                   borrow_input_buffers ? ", borrow buffers" : "");
-        }
-
-        BenchResult r = bench_file(file.c_str(), iterations, warmup, quiet,
-                                   float32_mode, skip_extras_values,
-                                   borrow_input_buffers);
-
-        if (csv) {
-            print_csv_row(r);
-        } else {
-            print_result(r);
-            printf("\n");
-        }
-    }
-
-    return 0;
-}

benchmark/gen_synthetic.cpp

@@ -1,740 +0,0 @@
-/*
- * gen_synthetic.cpp — Generate synthetic glTF 2.0 scenes for benchmarking.
- *
- * Produces .gltf (ASCII) and .glb (binary) files with configurable:
- *   - Number of meshes, each with N vertices/triangles
- *   - Number of nodes (flat hierarchy)
- *   - Number of materials
- *   - Number of animations with M keyframes
- *
- * Usage:
- *   gen_synthetic [--meshes N] [--verts-per-mesh N] [--nodes N]
- *                 [--materials N] [--animations N] [--keyframes N]
- *                 [--prefix NAME]
- *
- * Outputs: <prefix>_<label>.gltf and <prefix>_<label>.glb
- */
-
-#include <cstdio>
-#include <cstdlib>
-#include <cstring>
-#include <cmath>
-#include <string>
-#include <vector>
-#include <cstdint>
-
-/* ------------------------------------------------------------------ */
-/* Tiny JSON writer (no dependencies)                                 */
-/* ------------------------------------------------------------------ */
-
-struct JsonWriter {
-    std::string buf;
-    int indent;
-    bool need_comma;
-    std::vector<bool> stack; /* true = array context */
-
-    JsonWriter() : indent(0), need_comma(false) {}
-
-    void comma() {
-        if (need_comma) buf += ",";
-        buf += "\n";
-        for (int i = 0; i < indent; ++i) buf += "  ";
-    }
-
-    void begin_obj() {
-        if (!stack.empty()) comma();
-        buf += "{";
-        indent++;
-        need_comma = false;
-        stack.push_back(false);
-    }
-    void end_obj() {
-        indent--;
-        buf += "\n";
-        for (int i = 0; i < indent; ++i) buf += "  ";
-        buf += "}";
-        stack.pop_back();
-        need_comma = true;
-    }
-
-    void begin_arr() {
-        if (!stack.empty() && !need_comma) { /* first elem */ }
-        buf += "[";
-        indent++;
-        need_comma = false;
-        stack.push_back(true);
-    }
-    void end_arr() {
-        indent--;
-        buf += "\n";
-        for (int i = 0; i < indent; ++i) buf += "  ";
-        buf += "]";
-        stack.pop_back();
-        need_comma = true;
-    }
-
-    void key(const char *k) {
-        comma();
-        buf += "\"";
-        buf += k;
-        buf += "\": ";
-        need_comma = false;
-    }
-
-    void val_str(const char *v) {
-        if (stack.back()) comma();
-        buf += "\"";
-        buf += v;
-        buf += "\"";
-        need_comma = true;
-    }
-    void val_int(int64_t v) {
-        if (stack.back()) comma();
-        buf += std::to_string(v);
-        need_comma = true;
-    }
-    void val_double(double v) {
-        if (stack.back()) comma();
-        char tmp[64];
-        snprintf(tmp, sizeof(tmp), "%.6g", v);
-        buf += tmp;
-        need_comma = true;
-    }
-    void val_bool(bool v) {
-        if (stack.back()) comma();
-        buf += v ? "true" : "false";
-        need_comma = true;
-    }
-
-    void kv_str(const char *k, const char *v) { key(k); val_str(v); need_comma = true; }
-    void kv_int(const char *k, int64_t v) { key(k); val_int(v); need_comma = true; }
-    void kv_double(const char *k, double v) { key(k); val_double(v); need_comma = true; }
-    void kv_bool(const char *k, bool v) { key(k); val_bool(v); need_comma = true; }
-};
-
-/* ------------------------------------------------------------------ */
-/* Binary buffer builder                                              */
-/* ------------------------------------------------------------------ */
-
-struct BinBuffer {
-    std::vector<uint8_t> data;
-
-    size_t offset() const { return data.size(); }
-
-    void push_float(float v) {
-        const uint8_t *p = reinterpret_cast<const uint8_t*>(&v);
-        data.insert(data.end(), p, p + 4);
-    }
-    void push_u16(uint16_t v) {
-        const uint8_t *p = reinterpret_cast<const uint8_t*>(&v);
-        data.insert(data.end(), p, p + 2);
-    }
-    void push_u32(uint32_t v) {
-        const uint8_t *p = reinterpret_cast<const uint8_t*>(&v);
-        data.insert(data.end(), p, p + 4);
-    }
-    void align4() {
-        while (data.size() % 4 != 0) data.push_back(0);
-    }
-};
-
-/* ------------------------------------------------------------------ */
-/* Scene config                                                       */
-/* ------------------------------------------------------------------ */
-
-struct SceneConfig {
-    int num_meshes;
-    int verts_per_mesh;
-    int num_nodes;
-    int num_materials;
-    int num_animations;
-    int keyframes;
-};
-
-/* ------------------------------------------------------------------ */
-/* Generate the scene                                                 */
-/* ------------------------------------------------------------------ */
-
-struct AccessorInfo {
-    int buffer_view;
-    int component_type;
-    int count;
-    const char *type;
-    float min_vals[3];
-    float max_vals[3];
-    int min_max_components; /* 0 = none, 1 = scalar, 3 = vec3 */
-};
-
-static void generate_scene(const SceneConfig &cfg,
-                            std::string &out_json,
-                            std::vector<uint8_t> &out_bin) {
-    BinBuffer bin;
-
-    /* Pre-compute sizes */
-    int tris_per_mesh = cfg.verts_per_mesh / 3;
-    if (tris_per_mesh < 1) tris_per_mesh = 1;
-    int actual_verts = tris_per_mesh * 3;
-
-    /*
-     * For each mesh:
-     *   - positions: actual_verts * 3 floats
-     *   - normals:   actual_verts * 3 floats
-     *   - indices:   tris_per_mesh * 3 uint16 (or uint32 if >65535)
-     *
-     * For each animation:
-     *   - time keys:  keyframes floats
-     *   - translation values: keyframes * 3 floats
-     */
-
-    /* Track buffer views and accessors */
-    std::vector<size_t> bv_offsets;
-    std::vector<size_t> bv_lengths;
-    std::vector<AccessorInfo> accessors;
-    int bv_idx = 0;
-
-    bool use_u32_indices = (actual_verts > 65535);
-
-    /* === Mesh data === */
-    for (int m = 0; m < cfg.num_meshes; ++m) {
-        float mesh_offset_x = (float)m * 5.0f;
-
-        /* Positions */
-        size_t pos_off = bin.offset();
-        float pmin[3] = {1e30f, 1e30f, 1e30f};
-        float pmax[3] = {-1e30f, -1e30f, -1e30f};
-        for (int v = 0; v < actual_verts; ++v) {
-            float angle = (float)v / (float)actual_verts * 6.2831853f;
-            float r = 1.0f + 0.3f * sinf(angle * 5.0f);
-            float x = mesh_offset_x + r * cosf(angle);
-            float y = r * sinf(angle);
-            float z = 0.5f * sinf(angle * 3.0f + (float)m);
-            bin.push_float(x); bin.push_float(y); bin.push_float(z);
-            if (x < pmin[0]) pmin[0] = x;
-            if (x > pmax[0]) pmax[0] = x;
-            if (y < pmin[1]) pmin[1] = y;
-            if (y > pmax[1]) pmax[1] = y;
-            if (z < pmin[2]) pmin[2] = z;
-            if (z > pmax[2]) pmax[2] = z;
-        }
-        size_t pos_len = bin.offset() - pos_off;
-        bin.align4();
-        bv_offsets.push_back(pos_off); bv_lengths.push_back(pos_len);
-        int pos_bv = bv_idx++;
-
-        AccessorInfo pos_acc;
-        pos_acc.buffer_view = pos_bv;
-        pos_acc.component_type = 5126; /* FLOAT */
-        pos_acc.count = actual_verts;
-        pos_acc.type = "VEC3";
-        memcpy(pos_acc.min_vals, pmin, sizeof(pmin));
-        memcpy(pos_acc.max_vals, pmax, sizeof(pmax));
-        pos_acc.min_max_components = 3;
-        accessors.push_back(pos_acc);
-
-        /* Normals */
-        size_t norm_off = bin.offset();
-        for (int v = 0; v < actual_verts; ++v) {
-            float angle = (float)v / (float)actual_verts * 6.2831853f;
-            float nx = cosf(angle), ny = sinf(angle), nz = 0.0f;
-            float len = sqrtf(nx*nx + ny*ny + nz*nz);
-            if (len > 0) { nx /= len; ny /= len; nz /= len; }
-            bin.push_float(nx); bin.push_float(ny); bin.push_float(nz);
-        }
-        size_t norm_len = bin.offset() - norm_off;
-        bin.align4();
-        bv_offsets.push_back(norm_off); bv_lengths.push_back(norm_len);
-        int norm_bv = bv_idx++;
-
-        AccessorInfo norm_acc;
-        norm_acc.buffer_view = norm_bv;
-        norm_acc.component_type = 5126;
-        norm_acc.count = actual_verts;
-        norm_acc.type = "VEC3";
-        norm_acc.min_max_components = 0;
-        accessors.push_back(norm_acc);
-
-        /* Indices */
-        size_t idx_off = bin.offset();
-        for (int t = 0; t < tris_per_mesh; ++t) {
-            if (use_u32_indices) {
-                bin.push_u32((uint32_t)(t * 3));
-                bin.push_u32((uint32_t)(t * 3 + 1));
-                bin.push_u32((uint32_t)(t * 3 + 2));
-            } else {
-                bin.push_u16((uint16_t)(t * 3));
-                bin.push_u16((uint16_t)(t * 3 + 1));
-                bin.push_u16((uint16_t)(t * 3 + 2));
-            }
-        }
-        size_t idx_len = bin.offset() - idx_off;
-        bin.align4();
-        bv_offsets.push_back(idx_off); bv_lengths.push_back(idx_len);
-        int idx_bv = bv_idx++;
-
-        AccessorInfo idx_acc;
-        idx_acc.buffer_view = idx_bv;
-        idx_acc.component_type = use_u32_indices ? 5125 : 5123; /* UINT or USHORT */
-        idx_acc.count = tris_per_mesh * 3;
-        idx_acc.type = "SCALAR";
-        idx_acc.min_max_components = 0;
-        accessors.push_back(idx_acc);
-    }
-
-    /* === Animation data === */
-    int anim_time_accessor_start = (int)accessors.size();
-    for (int a = 0; a < cfg.num_animations; ++a) {
-        /* Time keys */
-        size_t time_off = bin.offset();
-        float tmin = 0.0f, tmax = 0.0f;
-        for (int k = 0; k < cfg.keyframes; ++k) {
-            float t = (float)k / (float)(cfg.keyframes - 1) * 10.0f;
-            bin.push_float(t);
-            if (k == 0) tmin = t;
-            tmax = t;
-        }
-        size_t time_len = bin.offset() - time_off;
-        bin.align4();
-        bv_offsets.push_back(time_off); bv_lengths.push_back(time_len);
-        int time_bv = bv_idx++;
-
-        AccessorInfo time_acc;
-        time_acc.buffer_view = time_bv;
-        time_acc.component_type = 5126;
-        time_acc.count = cfg.keyframes;
-        time_acc.type = "SCALAR";
-        time_acc.min_vals[0] = tmin;
-        time_acc.max_vals[0] = tmax;
-        time_acc.min_max_components = 1;
-        accessors.push_back(time_acc);
-
-        /* Translation values */
-        size_t val_off = bin.offset();
-        for (int k = 0; k < cfg.keyframes; ++k) {
-            float t = (float)k / (float)(cfg.keyframes - 1) * 10.0f;
-            float x = sinf(t * 0.5f + (float)a) * 2.0f;
-            float y = cosf(t * 0.3f) * 1.5f;
-            float z = sinf(t * 0.7f + (float)a * 0.5f);
-            bin.push_float(x); bin.push_float(y); bin.push_float(z);
-        }
-        size_t val_len = bin.offset() - val_off;
-        bin.align4();
-        bv_offsets.push_back(val_off); bv_lengths.push_back(val_len);
-        int val_bv = bv_idx++;
-
-        AccessorInfo val_acc;
-        val_acc.buffer_view = val_bv;
-        val_acc.component_type = 5126;
-        val_acc.count = cfg.keyframes;
-        val_acc.type = "VEC3";
-        val_acc.min_max_components = 0;
-        accessors.push_back(val_acc);
-    }
-
-    size_t total_bin = bin.data.size();
-
-    /* === Build JSON === */
-    JsonWriter w;
-    w.begin_obj();
-
-    /* asset */
-    w.key("asset"); w.begin_obj();
-    w.kv_str("version", "2.0");
-    w.kv_str("generator", "tinygltf_benchmark_gen");
-    w.end_obj();
-
-    /* scene */
-    w.kv_int("scene", 0);
-
-    /* scenes */
-    w.key("scenes"); w.begin_arr();
-    w.begin_obj();
-    w.kv_str("name", "BenchmarkScene");
-    w.key("nodes"); w.begin_arr();
-    for (int n = 0; n < cfg.num_nodes; ++n) w.val_int(n);
-    w.end_arr();
-    w.end_obj();
-    w.end_arr();
-
-    /* nodes */
-    w.key("nodes"); w.begin_arr();
-    for (int n = 0; n < cfg.num_nodes; ++n) {
-        w.begin_obj();
-        w.kv_str("name", ("Node_" + std::to_string(n)).c_str());
-        if (n < cfg.num_meshes) {
-            w.kv_int("mesh", n);
-        }
-        w.key("translation"); w.begin_arr();
-        w.val_double((double)n * 3.0);
-        w.val_double(0.0);
-        w.val_double(0.0);
-        w.end_arr();
-        w.end_obj();
-    }
-    w.end_arr();
-
-    /* meshes */
-    w.key("meshes"); w.begin_arr();
-    for (int m = 0; m < cfg.num_meshes; ++m) {
-        int base_acc = m * 3; /* pos, norm, idx per mesh */
-        w.begin_obj();
-        w.kv_str("name", ("Mesh_" + std::to_string(m)).c_str());
-        w.key("primitives"); w.begin_arr();
-        w.begin_obj();
-        w.key("attributes"); w.begin_obj();
-        w.kv_int("POSITION", base_acc);
-        w.kv_int("NORMAL", base_acc + 1);
-        w.end_obj();
-        w.kv_int("indices", base_acc + 2);
-        w.kv_int("material", m % cfg.num_materials);
-        w.kv_int("mode", 4);
-        w.end_obj();
-        w.end_arr();
-        w.end_obj();
-    }
-    w.end_arr();
-
-    /* materials */
-    w.key("materials"); w.begin_arr();
-    for (int m = 0; m < cfg.num_materials; ++m) {
-        w.begin_obj();
-        w.kv_str("name", ("Material_" + std::to_string(m)).c_str());
-        w.key("pbrMetallicRoughness"); w.begin_obj();
-        w.key("baseColorFactor"); w.begin_arr();
-        float hue = (float)m / (float)cfg.num_materials;
-        w.val_double(0.5 + 0.5 * sin(hue * 6.28));
-        w.val_double(0.5 + 0.5 * sin(hue * 6.28 + 2.09));
-        w.val_double(0.5 + 0.5 * sin(hue * 6.28 + 4.19));
-        w.val_double(1.0);
-        w.end_arr();
-        w.kv_double("metallicFactor", 0.2 + 0.6 * ((double)m / cfg.num_materials));
-        w.kv_double("roughnessFactor", 0.3 + 0.5 * ((double)(cfg.num_materials - m) / cfg.num_materials));
-        w.end_obj();
-        w.end_obj();
-    }
-    w.end_arr();
-
-    /* accessors */
-    w.key("accessors"); w.begin_arr();
-    for (size_t i = 0; i < accessors.size(); ++i) {
-        const AccessorInfo &a = accessors[i];
-        w.begin_obj();
-        w.kv_int("bufferView", a.buffer_view);
-        w.kv_int("componentType", a.component_type);
-        w.kv_int("count", a.count);
-        w.kv_str("type", a.type);
-        if (a.min_max_components == 1) {
-            w.key("min"); w.begin_arr(); w.val_double(a.min_vals[0]); w.end_arr();
-            w.key("max"); w.begin_arr(); w.val_double(a.max_vals[0]); w.end_arr();
-        } else if (a.min_max_components == 3) {
-            w.key("min"); w.begin_arr();
-            w.val_double(a.min_vals[0]); w.val_double(a.min_vals[1]); w.val_double(a.min_vals[2]);
-            w.end_arr();
-            w.key("max"); w.begin_arr();
-            w.val_double(a.max_vals[0]); w.val_double(a.max_vals[1]); w.val_double(a.max_vals[2]);
-            w.end_arr();
-        }
-        w.end_obj();
-    }
-    w.end_arr();
-
-    /* bufferViews */
-    w.key("bufferViews"); w.begin_arr();
-    for (int i = 0; i < bv_idx; ++i) {
-        w.begin_obj();
-        w.kv_int("buffer", 0);
-        w.kv_int("byteOffset", (int64_t)bv_offsets[i]);
-        w.kv_int("byteLength", (int64_t)bv_lengths[i]);
-        w.end_obj();
-    }
-    w.end_arr();
-
-    /* buffers */
-    w.key("buffers"); w.begin_arr();
-    w.begin_obj();
-    w.kv_int("byteLength", (int64_t)total_bin);
-    /* URI will be set by caller for .gltf, omitted for .glb */
-    w.end_obj();
-    w.end_arr();
-
-    /* animations */
-    if (cfg.num_animations > 0) {
-        w.key("animations"); w.begin_arr();
-        for (int a = 0; a < cfg.num_animations; ++a) {
-            int time_acc = anim_time_accessor_start + a * 2;
-            int val_acc = time_acc + 1;
-            /* Target node: cycle through available nodes */
-            int target_node = a % cfg.num_nodes;
-
-            w.begin_obj();
-            w.kv_str("name", ("Anim_" + std::to_string(a)).c_str());
-
-            w.key("channels"); w.begin_arr();
-            w.begin_obj();
-            w.kv_int("sampler", 0);
-            w.key("target"); w.begin_obj();
-            w.kv_int("node", target_node);
-            w.kv_str("path", "translation");
-            w.end_obj();
-            w.end_obj();
-            w.end_arr();
-
-            w.key("samplers"); w.begin_arr();
-            w.begin_obj();
-            w.kv_int("input", time_acc);
-            w.kv_int("output", val_acc);
-            w.kv_str("interpolation", "LINEAR");
-            w.end_obj();
-            w.end_arr();
-
-            w.end_obj();
-        }
-        w.end_arr();
-    }
-
-    w.end_obj();
-
-    out_json = w.buf;
-    out_bin = bin.data;
-}
-
-/* ------------------------------------------------------------------ */
-/* Write .gltf + .bin                                                 */
-/* ------------------------------------------------------------------ */
-
-static void write_gltf(const std::string &prefix, const std::string &label,
-                        const std::string &json_str,
-                        const std::vector<uint8_t> &bin_data) {
-    std::string bin_name = prefix + "_" + label + ".bin";
-    std::string gltf_name = prefix + "_" + label + ".gltf";
-
-    /* Inject "uri" into the buffer object in JSON */
-    std::string json_patched = json_str;
-    /* Find the buffers array and add uri before the closing } of the buffer */
-    size_t pos = json_patched.find("\"byteLength\"");
-    if (pos != std::string::npos) {
-        /* Find the line end after byteLength value */
-        size_t line_end = json_patched.find('\n', pos);
-        if (line_end != std::string::npos) {
-            /* Extract just the filename for uri */
-            std::string bin_filename = prefix + "_" + label + ".bin";
-            std::string uri_line = ",\n      \"uri\": \"" + bin_filename + "\"";
-            json_patched.insert(line_end, uri_line);
-        }
-    }
-
-    /* Write .bin */
-    FILE *f = fopen(bin_name.c_str(), "wb");
-    if (f) {
-        fwrite(bin_data.data(), 1, bin_data.size(), f);
-        fclose(f);
-    }
-
-    /* Write .gltf */
-    f = fopen(gltf_name.c_str(), "w");
-    if (f) {
-        fwrite(json_patched.c_str(), 1, json_patched.size(), f);
-        fclose(f);
-    }
-
-    printf("  Written: %s (%zu bytes JSON) + %s (%zu bytes binary)\n",
-           gltf_name.c_str(), json_patched.size(),
-           bin_name.c_str(), bin_data.size());
-}
-
-/* ------------------------------------------------------------------ */
-/* Write .glb                                                         */
-/* ------------------------------------------------------------------ */
-
-static void write_glb(const std::string &prefix, const std::string &label,
-                       const std::string &json_str,
-                       const std::vector<uint8_t> &bin_data) {
-    std::string glb_name = prefix + "_" + label + ".glb";
-
-    uint32_t json_len = (uint32_t)json_str.size();
-    uint32_t json_padded = (json_len + 3) & ~3u;
-    uint32_t bin_len = (uint32_t)bin_data.size();
-    uint32_t bin_padded = (bin_len + 3) & ~3u;
-
-    uint32_t total = 12 + 8 + json_padded + 8 + bin_padded;
-
-    FILE *f = fopen(glb_name.c_str(), "wb");
-    if (!f) return;
-
-    /* Header */
-    fwrite("glTF", 1, 4, f);
-    uint32_t version = 2;
-    fwrite(&version, 4, 1, f);
-    fwrite(&total, 4, 1, f);
-
-    /* JSON chunk */
-    uint32_t json_type = 0x4E4F534A;
-    fwrite(&json_padded, 4, 1, f);
-    fwrite(&json_type, 4, 1, f);
-    fwrite(json_str.c_str(), 1, json_len, f);
-    for (uint32_t i = json_len; i < json_padded; ++i) {
-        char sp = ' ';
-        fwrite(&sp, 1, 1, f);
-    }
-
-    /* BIN chunk */
-    uint32_t bin_type = 0x004E4942;
-    fwrite(&bin_padded, 4, 1, f);
-    fwrite(&bin_type, 4, 1, f);
-    fwrite(bin_data.data(), 1, bin_len, f);
-    for (uint32_t i = bin_len; i < bin_padded; ++i) {
-        char z = 0;
-        fwrite(&z, 1, 1, f);
-    }
-
-    fclose(f);
-    printf("  Written: %s (%u bytes)\n", glb_name.c_str(), total);
-}
-
-/* ------------------------------------------------------------------ */
-/* Preset configurations                                              */
-/* ------------------------------------------------------------------ */
-
-struct Preset {
-    const char *label;
-    SceneConfig cfg;
-};
-
-static Preset presets[] = {
-    {"tiny",   {1,   100,    2,  1, 0,   0}},
-    {"small",  {5,   1000,  10,  3, 2,  50}},
-    {"medium", {20,  5000,  50, 10, 5, 200}},
-    {"large",  {100, 10000, 200, 20, 10, 500}},
-    {"huge",   {500, 50000, 1000, 50, 50, 1000}},
-};
-
-static const int num_presets = (int)(sizeof(presets) / sizeof(presets[0]));
-
-/* ------------------------------------------------------------------ */
-/* Generate float-heavy scene (~500MB of ASCII float values in JSON)  */
-/* ------------------------------------------------------------------ */
-
-static void generate_float_heavy(const std::string &prefix, size_t target_mb) {
-    std::string gltf_name = prefix + "_float_heavy.gltf";
-    FILE *f = fopen(gltf_name.c_str(), "w");
-    if (!f) {
-        fprintf(stderr, "Cannot open %s\n", gltf_name.c_str());
-        return;
-    }
-
-    /* Write minimal valid glTF with massive extras float array */
-    fprintf(f, "{\n");
-    fprintf(f, "  \"asset\": {\"version\": \"2.0\", \"generator\": \"tinygltf_benchmark_gen\"},\n");
-    fprintf(f, "  \"scene\": 0,\n");
-    fprintf(f, "  \"scenes\": [{\"name\": \"FloatHeavy\", \"nodes\": [0]}],\n");
-    fprintf(f, "  \"nodes\": [{\"name\": \"Root\"}],\n");
-    fprintf(f, "  \"extras\": {\n");
-
-    size_t target_bytes = target_mb * 1024ULL * 1024ULL;
-    size_t total_written = 0;
-    int num_channels = 10;
-    size_t per_channel = target_bytes / (size_t)num_channels;
-
-    for (int ch = 0; ch < num_channels; ++ch) {
-        fprintf(f, "    \"channel_%d\": [\n      ", ch);
-        size_t ch_written = 0;
-        size_t count = 0;
-        uint64_t seed = (uint64_t)ch * 7919ULL + 1;
-        bool first = true;
-
-        while (ch_written < per_channel) {
-            /* Comma before every value except the first */
-            if (!first) {
-                fwrite(",\n      ", 1, 8, f);
-                ch_written += 8;
-            }
-            first = false;
-
-            /* Generate varied float values: mix of magnitudes and precisions */
-            seed = seed * 6364136223846793005ULL + 1442695040888963407ULL;
-            double raw = (double)(int64_t)seed / (double)INT64_MAX;
-
-            double val;
-            int kind = (int)(count % 5);
-            switch (kind) {
-                case 0: val = raw * 1000.0; break;           /* large: -999.xxx */
-                case 1: val = raw * 0.001; break;            /* small: 0.000xxx */
-                case 2: val = raw * 3.14159265358979; break; /* medium: -3.14..3.14 */
-                case 3: val = raw * 1e6; break;              /* very large */
-                case 4: val = raw * 1e-6; break;             /* very small */
-                default: val = raw; break;
-            }
-
-            char buf[64];
-            int len = snprintf(buf, sizeof(buf), "%.8g", val);
-            fwrite(buf, 1, (size_t)len, f);
-            ch_written += (size_t)len;
-            count++;
-        }
-
-        total_written += ch_written;
-
-        if (ch < num_channels - 1) {
-            fprintf(f, "\n    ],\n");
-        } else {
-            fprintf(f, "\n    ]\n");
-        }
-    }
-
-    fprintf(f, "  }\n");
-    fprintf(f, "}\n");
-    fclose(f);
-
-    /* Report actual file size */
-    f = fopen(gltf_name.c_str(), "rb");
-    if (f) {
-        fseek(f, 0, SEEK_END);
-        long sz = ftell(f);
-        fclose(f);
-        printf("  Written: %s (%.1f MB, ~%zu float values across %d channels)\n",
-               gltf_name.c_str(), (double)sz / (1024.0 * 1024.0),
-               total_written / 12, num_channels);
-    }
-}
-
-/* ------------------------------------------------------------------ */
-/* Main                                                               */
-/* ------------------------------------------------------------------ */
-
-int main(int argc, char **argv) {
-    std::string prefix = "synthetic";
-
-    /* Parse args */
-    for (int i = 1; i < argc; ++i) {
-        if (strcmp(argv[i], "--prefix") == 0 && i + 1 < argc) {
-            prefix = argv[++i];
-        }
-    }
-
-    printf("Generating synthetic glTF benchmark scenes...\n\n");
-
-    for (int p = 0; p < num_presets; ++p) {
-        const Preset &pr = presets[p];
-
-        printf("[%s] meshes=%d verts/mesh=%d nodes=%d materials=%d "
-               "animations=%d keyframes=%d\n",
-               pr.label, pr.cfg.num_meshes, pr.cfg.verts_per_mesh,
-               pr.cfg.num_nodes, pr.cfg.num_materials,
-               pr.cfg.num_animations, pr.cfg.keyframes);
-
-        std::string json;
-        std::vector<uint8_t> bin;
-        generate_scene(pr.cfg, json, bin);
-
-        write_gltf(prefix, pr.label, json, bin);
-        write_glb(prefix, pr.label, json, bin);
-        printf("\n");
-    }
-
-    /* Float-heavy scene: ~500MB of ASCII floats in JSON */
-    printf("[float_heavy] ~500MB of ASCII float values in JSON extras\n");
-    generate_float_heavy(prefix, 500);
-    printf("\n");
-
-    printf("Done.\n");
-    return 0;
-}

cmake/TinyGLTFConfig.cmake.in

@@ -1,3 +0,0 @@
-@PACKAGE_INIT@
-
-include(${CMAKE_CURRENT_LIST_DIR}/TinyGLTFTargets.cmake)

examples/basic/.gitignore

@@ -1,8 +0,0 @@
-.vs
-Debug
-Release
-x64
-packages
-
-!*.sln
-!*.vcxproj*

examples/basic/README.md

@@ -1,25 +0,0 @@
-# Basic glTF viewer
-
-## Requirements
-
-* glew
-* glfw3
-* premake5(linux)
-* OpenGL 3.3+ GPU
-
-## Build on Linux and macOS
-
-```
-$ premake5 gmake
-$ make
-```
-
-## Build on Visual Studio
-
-Plese use solution file located at `basic` folder.
-
-
-## Limitation
-
-There are so many limitations in this example(e.g. no PBR shader. the shader only shows texture of textures[0] if available).
-

examples/basic/basic/basic.sln

@@ -1,31 +0,0 @@
-
-Microsoft Visual Studio Solution File, Format Version 12.00
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-MinimumVisualStudioVersion = 10.0.40219.1
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-EndProject
-Global
-	GlobalSection(SolutionConfigurationPlatforms) = preSolution
-		Debug|x64 = Debug|x64
-		Debug|x86 = Debug|x86
-		Release|x64 = Release|x64
-		Release|x86 = Release|x86
-	EndGlobalSection
-	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{0589AC44-0CF3-40D8-8D89-68393CFD40F3}.Debug|x64.ActiveCfg = Debug|x64
-		{0589AC44-0CF3-40D8-8D89-68393CFD40F3}.Debug|x64.Build.0 = Debug|x64
-		{0589AC44-0CF3-40D8-8D89-68393CFD40F3}.Debug|x86.ActiveCfg = Debug|Win32
-		{0589AC44-0CF3-40D8-8D89-68393CFD40F3}.Debug|x86.Build.0 = Debug|Win32
-		{0589AC44-0CF3-40D8-8D89-68393CFD40F3}.Release|x64.ActiveCfg = Release|x64
-		{0589AC44-0CF3-40D8-8D89-68393CFD40F3}.Release|x64.Build.0 = Release|x64
-		{0589AC44-0CF3-40D8-8D89-68393CFD40F3}.Release|x86.ActiveCfg = Release|Win32
-		{0589AC44-0CF3-40D8-8D89-68393CFD40F3}.Release|x86.Build.0 = Release|Win32
-	EndGlobalSection
-	GlobalSection(SolutionProperties) = preSolution
-		HideSolutionNode = FALSE
-	EndGlobalSection
-	GlobalSection(ExtensibilityGlobals) = postSolution
-		SolutionGuid = {055E97C4-43DC-41B4-8D61-4FDDBC7B1EF7}
-	EndGlobalSection
-EndGlobal

examples/basic/basic/basic.vcxproj

@@ -1,159 +0,0 @@
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-      <Platform>Win32</Platform>
-    </ProjectConfiguration>
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-      <Platform>x64</Platform>
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-    <ProjectGuid>{0589AC44-0CF3-40D8-8D89-68393CFD40F3}</ProjectGuid>
-    <RootNamespace>basic</RootNamespace>
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-    <ConfigurationType>Application</ConfigurationType>
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-    <PlatformToolset>v142</PlatformToolset>
-    <CharacterSet>MultiByte</CharacterSet>
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-    <WholeProgramOptimization>true</WholeProgramOptimization>
-    <CharacterSet>MultiByte</CharacterSet>
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-    <Filter Include="Header Files">
-      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
-      <Extensions>h;hh;hpp;hxx;hm;inl;inc;ipp;xsd</Extensions>
-    </Filter>
-    <Filter Include="Resource Files">
-      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
-      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
-    </Filter>
-  </ItemGroup>
-  <ItemGroup>
-    <ClCompile Include="..\main.cpp">
-      <Filter>Source Files</Filter>
-    </ClCompile>
-    <ClCompile Include="..\window.cpp">
-      <Filter>Source Files</Filter>
-    </ClCompile>
-    <ClCompile Include="..\shaders.cpp">
-      <Filter>Source Files</Filter>
-    </ClCompile>
-  </ItemGroup>
-  <ItemGroup>
-    <ClInclude Include="..\window.h">
-      <Filter>Header Files</Filter>
-    </ClInclude>
-    <ClInclude Include="..\shaders.h">
-      <Filter>Header Files</Filter>
-    </ClInclude>
-  </ItemGroup>
-  <ItemGroup>
-    <None Include="packages.config" />
-  </ItemGroup>
-</Project>

examples/basic/basic/basic.vcxproj.user

@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <PropertyGroup />
-</Project>

examples/basic/basic/packages.config

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<packages>
-  <package id="glm" version="0.9.9.200" targetFramework="native" />
-  <package id="nupengl.core" version="0.1.0.1" targetFramework="native" />
-  <package id="nupengl.core.redist" version="0.1.0.1" targetFramework="native" />
-</packages>

examples/basic/main.cpp

@@ -1,394 +0,0 @@
-#include <fstream>
-#include <iostream>
-
-#include <GL/glew.h>
-#include <GLFW/glfw3.h>
-#include <glm/gtc/matrix_transform.hpp>
-
-#include "shaders.h"
-#include "window.h"
-
-#define TINYGLTF_IMPLEMENTATION
-#define STB_IMAGE_IMPLEMENTATION
-#define STB_IMAGE_WRITE_IMPLEMENTATION
-#define TINYGLTF_NOEXCEPTION
-#define JSON_NOEXCEPTION
-#include "../../tiny_gltf.h"
-
-#define BUFFER_OFFSET(i) ((char *)NULL + (i))
-
-bool loadModel(tinygltf::Model &model, const char *filename) {
-  tinygltf::TinyGLTF loader;
-  std::string err;
-  std::string warn;
-
-  bool res = loader.LoadASCIIFromFile(&model, &err, &warn, filename);
-  if (!warn.empty()) {
-    std::cout << "WARN: " << warn << std::endl;
-  }
-
-  if (!err.empty()) {
-    std::cout << "ERR: " << err << std::endl;
-  }
-
-  if (!res)
-    std::cout << "Failed to load glTF: " << filename << std::endl;
-  else
-    std::cout << "Loaded glTF: " << filename << std::endl;
-
-  return res;
-}
-
-void bindMesh(std::map<int, GLuint>& vbos,
-              tinygltf::Model &model, tinygltf::Mesh &mesh) {
-  for (size_t i = 0; i < model.bufferViews.size(); ++i) {
-    const tinygltf::BufferView &bufferView = model.bufferViews[i];
-    if (bufferView.target == 0) {  // TODO impl drawarrays
-      std::cout << "WARN: bufferView.target is zero" << std::endl;
-      continue;  // Unsupported bufferView.
-                 /*
-                   From spec2.0 readme:
-                   https://github.com/KhronosGroup/glTF/tree/master/specification/2.0
-                            ... drawArrays function should be used with a count equal to
-                   the count            property of any of the accessors referenced by the
-                   attributes            property            (they are all equal for a given
-                   primitive).
-                 */
-    }
-
-    const tinygltf::Buffer &buffer = model.buffers[bufferView.buffer];
-    std::cout << "bufferview.target " << bufferView.target << std::endl;
-
-    GLuint vbo;
-    glGenBuffers(1, &vbo);
-    vbos[i] = vbo;
-    glBindBuffer(bufferView.target, vbo);
-
-    std::cout << "buffer.data.size = " << buffer.data.size()
-              << ", bufferview.byteOffset = " << bufferView.byteOffset
-              << std::endl;
-
-    glBufferData(bufferView.target, bufferView.byteLength,
-                 &buffer.data.at(0) + bufferView.byteOffset, GL_STATIC_DRAW);
-  }
-
-  for (size_t i = 0; i < mesh.primitives.size(); ++i) {
-    tinygltf::Primitive primitive = mesh.primitives[i];
-    tinygltf::Accessor indexAccessor = model.accessors[primitive.indices];
-
-    for (auto &attrib : primitive.attributes) {
-      tinygltf::Accessor accessor = model.accessors[attrib.second];
-      int byteStride =
-          accessor.ByteStride(model.bufferViews[accessor.bufferView]);
-      glBindBuffer(GL_ARRAY_BUFFER, vbos[accessor.bufferView]);
-
-      int size = 1;
-      if (accessor.type != TINYGLTF_TYPE_SCALAR) {
-        size = accessor.type;
-      }
-
-      int vaa = -1;
-      if (attrib.first.compare("POSITION") == 0) vaa = 0;
-      if (attrib.first.compare("NORMAL") == 0) vaa = 1;
-      if (attrib.first.compare("TEXCOORD_0") == 0) vaa = 2;
-      if (vaa > -1) {
-        glEnableVertexAttribArray(vaa);
-        glVertexAttribPointer(vaa, size, accessor.componentType,
-                              accessor.normalized ? GL_TRUE : GL_FALSE,
-                              byteStride, BUFFER_OFFSET(accessor.byteOffset));
-      } else
-        std::cout << "vaa missing: " << attrib.first << std::endl;
-    }
-
-    if (model.textures.size() > 0) {
-      // fixme: Use material's baseColor
-      tinygltf::Texture &tex = model.textures[0];
-
-      if (tex.source > -1) {
-
-        GLuint texid;
-        glGenTextures(1, &texid);
-
-        tinygltf::Image &image = model.images[tex.source];
-
-        glBindTexture(GL_TEXTURE_2D, texid);
-        glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-        glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-        glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
-        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-
-        GLenum format = GL_RGBA;
-
-        if (image.component == 1) {
-          format = GL_RED;
-        } else if (image.component == 2) {
-          format = GL_RG;
-        } else if (image.component == 3) {
-          format = GL_RGB;
-        } else {
-          // ???
-        }
-
-        GLenum type = GL_UNSIGNED_BYTE;
-        if (image.bits == 8) {
-          // ok
-        } else if (image.bits == 16) {
-          type = GL_UNSIGNED_SHORT;
-        } else {
-          // ???
-        }
-
-        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, image.width, image.height, 0,
-                     format, type, &image.image.at(0));
-      }
-    }
-  }
-}
-
-// bind models
-void bindModelNodes(std::map<int, GLuint>& vbos, tinygltf::Model &model,
-                    tinygltf::Node &node) {
-  if ((node.mesh >= 0) && (node.mesh < model.meshes.size())) {
-    bindMesh(vbos, model, model.meshes[node.mesh]);
-  }
-
-  for (size_t i = 0; i < node.children.size(); i++) {
-    assert((node.children[i] >= 0) && (node.children[i] < model.nodes.size()));
-    bindModelNodes(vbos, model, model.nodes[node.children[i]]);
-  }
-}
-
-std::pair<GLuint, std::map<int, GLuint>> bindModel(tinygltf::Model &model) {
-  std::map<int, GLuint> vbos;
-  GLuint vao;
-  glGenVertexArrays(1, &vao);
-  glBindVertexArray(vao);
-
-  const tinygltf::Scene &scene = model.scenes[model.defaultScene];
-  for (size_t i = 0; i < scene.nodes.size(); ++i) {
-    assert((scene.nodes[i] >= 0) && (scene.nodes[i] < model.nodes.size()));
-    bindModelNodes(vbos, model, model.nodes[scene.nodes[i]]);
-  }
-
-  glBindVertexArray(0);
-  // cleanup vbos but do not delete index buffers yet
-  for (auto it = vbos.cbegin(); it != vbos.cend();) {
-    tinygltf::BufferView bufferView = model.bufferViews[it->first];
-    if (bufferView.target != GL_ELEMENT_ARRAY_BUFFER) {
-      glDeleteBuffers(1, &vbos[it->first]);
-      vbos.erase(it++);
-    }
-    else {
-      ++it;
-    }
-  }
-
-  return {vao, vbos};
-}
-
-void drawMesh(const std::map<int, GLuint>& vbos,
-              tinygltf::Model &model, tinygltf::Mesh &mesh) {
-  for (size_t i = 0; i < mesh.primitives.size(); ++i) {
-    tinygltf::Primitive primitive = mesh.primitives[i];
-    tinygltf::Accessor indexAccessor = model.accessors[primitive.indices];
-
-    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vbos.at(indexAccessor.bufferView));
-
-    glDrawElements(primitive.mode, indexAccessor.count,
-                   indexAccessor.componentType,
-                   BUFFER_OFFSET(indexAccessor.byteOffset));
-  }
-}
-
-// recursively draw node and children nodes of model
-void drawModelNodes(const std::pair<GLuint, std::map<int, GLuint>>& vaoAndEbos,
-                    tinygltf::Model &model, tinygltf::Node &node) {
-  if ((node.mesh >= 0) && (node.mesh < model.meshes.size())) {
-    drawMesh(vaoAndEbos.second, model, model.meshes[node.mesh]);
-  }
-  for (size_t i = 0; i < node.children.size(); i++) {
-    drawModelNodes(vaoAndEbos, model, model.nodes[node.children[i]]);
-  }
-}
-void drawModel(const std::pair<GLuint, std::map<int, GLuint>>& vaoAndEbos,
-               tinygltf::Model &model) {
-  glBindVertexArray(vaoAndEbos.first);
-
-  const tinygltf::Scene &scene = model.scenes[model.defaultScene];
-  for (size_t i = 0; i < scene.nodes.size(); ++i) {
-    drawModelNodes(vaoAndEbos, model, model.nodes[scene.nodes[i]]);
-  }
-
-  glBindVertexArray(0);
-}
-
-void dbgModel(tinygltf::Model &model) {
-  for (auto &mesh : model.meshes) {
-    std::cout << "mesh : " << mesh.name << std::endl;
-    for (auto &primitive : mesh.primitives) {
-      const tinygltf::Accessor &indexAccessor =
-          model.accessors[primitive.indices];
-
-      std::cout << "indexaccessor: count " << indexAccessor.count << ", type "
-                << indexAccessor.componentType << std::endl;
-
-      tinygltf::Material &mat = model.materials[primitive.material];
-      for (auto &mats : mat.values) {
-        std::cout << "mat : " << mats.first.c_str() << std::endl;
-      }
-
-      for (auto &image : model.images) {
-        std::cout << "image name : " << image.uri << std::endl;
-        std::cout << "  size : " << image.image.size() << std::endl;
-        std::cout << "  w/h : " << image.width << "/" << image.height
-                  << std::endl;
-      }
-
-      std::cout << "indices : " << primitive.indices << std::endl;
-      std::cout << "mode     : "
-                << "(" << primitive.mode << ")" << std::endl;
-
-      for (auto &attrib : primitive.attributes) {
-        std::cout << "attribute : " << attrib.first.c_str() << std::endl;
-      }
-    }
-  }
-}
-
-glm::mat4 genView(glm::vec3 pos, glm::vec3 lookat) {
-  // Camera matrix
-  glm::mat4 view = glm::lookAt(
-      pos,                // Camera in World Space
-      lookat,             // and looks at the origin
-      glm::vec3(0, 1, 0)  // Head is up (set to 0,-1,0 to look upside-down)
-  );
-
-  return view;
-}
-
-glm::mat4 genMVP(glm::mat4 view_mat, glm::mat4 model_mat, float fov, int w,
-                 int h) {
-  glm::mat4 Projection =
-      glm::perspective(glm::radians(fov), (float)w / (float)h, 0.01f, 1000.0f);
-
-  // Or, for an ortho camera :
-  // glm::mat4 Projection = glm::ortho(-10.0f,10.0f,-10.0f,10.0f,0.0f,100.0f);
-  // // In world coordinates
-
-  glm::mat4 mvp = Projection * view_mat * model_mat;
-
-  return mvp;
-}
-
-void displayLoop(Window &window, const std::string &filename) {
-  Shaders shader = Shaders();
-  glUseProgram(shader.pid);
-
-  // grab uniforms to modify
-  GLuint MVP_u = glGetUniformLocation(shader.pid, "MVP");
-  GLuint sun_position_u = glGetUniformLocation(shader.pid, "sun_position");
-  GLuint sun_color_u = glGetUniformLocation(shader.pid, "sun_color");
-
-  tinygltf::Model model;
-  if (!loadModel(model, filename.c_str())) return;
-
-  std::pair<GLuint, std::map<int, GLuint>> vaoAndEbos = bindModel(model);
-  // dbgModel(model); return;
-
-  // Model matrix : an identity matrix (model will be at the origin)
-  glm::mat4 model_mat = glm::mat4(1.0f);
-  glm::mat4 model_rot = glm::mat4(1.0f);
-  glm::vec3 model_pos = glm::vec3(-3, 0, -3);
-
-  // generate a camera view, based on eye-position and lookAt world-position
-  glm::mat4 view_mat = genView(glm::vec3(2, 2, 20), model_pos);
-
-  glm::vec3 sun_position = glm::vec3(3.0, 10.0, -5.0);
-  glm::vec3 sun_color = glm::vec3(1.0);
-
-  while (!window.Close()) {
-    window.Resize();
-
-    glClearColor(0.2, 0.2, 0.2, 1.0);
-    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
-    glm::mat4 trans =
-        glm::translate(glm::mat4(1.0f), model_pos);  // reposition model
-    model_rot = glm::rotate(model_rot, glm::radians(0.8f),
-                            glm::vec3(0, 1, 0));  // rotate model on y axis
-    model_mat = trans * model_rot;
-
-    // build a model-view-projection
-    GLint w, h;
-    glfwGetWindowSize(window.window, &w, &h);
-    glm::mat4 mvp = genMVP(view_mat, model_mat, 45.0f, w, h);
-    glUniformMatrix4fv(MVP_u, 1, GL_FALSE, &mvp[0][0]);
-
-    glUniform3fv(sun_position_u, 1, &sun_position[0]);
-    glUniform3fv(sun_color_u, 1, &sun_color[0]);
-
-    drawModel(vaoAndEbos, model);
-    glfwSwapBuffers(window.window);
-    glfwPollEvents();
-  }
-
-  glDeleteVertexArrays(1, &vaoAndEbos.first);
-}
-
-static void error_callback(int error, const char *description) {
-  (void)error;
-  fprintf(stderr, "Error: %s\n", description);
-}
-
-int main(int argc, char **argv) {
-  std::string filename = "../../../models/Cube/Cube.gltf";
-
-  if (argc > 1) {
-    filename = argv[1];
-  }
-
-  glfwSetErrorCallback(error_callback);
-
-  if (!glfwInit()) return -1;
-
-  // Force create OpenGL 3.3
-  // NOTE(syoyo): Linux + NVIDIA driver segfaults for some reason? commenting out glfwWindowHint will work.
-  // Note (PE): On laptops with intel hd graphics card you can overcome the segfault by enabling experimental, see below (tested on lenovo thinkpad)
-  glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
-  glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
-  glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
-  glewExperimental = GL_TRUE;
-
-#ifdef __APPLE__
-  glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
-#endif
-
-  Window window = Window(800, 600, "TinyGLTF basic example");
-  glfwMakeContextCurrent(window.window);
-
-#ifdef __APPLE__
-  // https://stackoverflow.com/questions/50192625/openggl-segmentation-fault
-  glewExperimental = GL_TRUE;
-#endif
-
-  glewInit();
-  std::cout << glGetString(GL_RENDERER) << ", " << glGetString(GL_VERSION)
-            << std::endl;
-
-  if (!GLEW_VERSION_3_3) {
-    std::cerr << "OpenGL 3.3 is required to execute this app." << std::endl;
-    return EXIT_FAILURE;
-  }
-
-  glEnable(GL_DEPTH_TEST);
-  glDepthFunc(GL_LESS);
-
-  glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-  glEnable(GL_BLEND);
-
-  displayLoop(window, filename);
-
-  glfwTerminate();
-  return 0;
-}

examples/basic/shaders.cpp

@@ -1,114 +0,0 @@
-#include "shaders.h"
-#include <iostream>
-#include <vector>
-
-
-#include <GL/glew.h>
-#include <GLFW/glfw3.h>
-
-std::string FragmentShaderCode =
-"#version 330 core\n\
-in vec3 normal;\n\
-in vec3 position;\n\
-in vec2 texcoord;\n\
-\n\
-uniform sampler2D tex;\n\
-uniform vec3 sun_position; \n\
-uniform vec3 sun_color; \n\
-\n\
-out vec4 color;\n\
-void main() {\n\
-	float lum = max(dot(normal, normalize(sun_position)), 0.0);\n\
-	color = texture(tex, texcoord) * vec4((0.3 + 0.7 * lum) * sun_color, 1.0);\n\
-}\n\
-";
-
-std::string VertexShaderCode =
-"#version 330 core\n\
-layout(location = 0) in vec3 in_vertex;\n\
-layout(location = 1) in vec3 in_normal;\n\
-layout(location = 2) in vec2 in_texcoord;\n\
-\n\
-uniform mat4 MVP;\n\
-\n\
-out vec3 normal;\n\
-out vec3 position;\n\
-out vec2 texcoord;\n\
-\n\
-void main(){\n\
-	gl_Position = MVP * vec4(in_vertex, 1);\n\
-	position = gl_Position.xyz;\n\
-	normal = normalize(mat3(MVP) * in_normal);\n\
-	position = in_vertex;\n\
-	texcoord = in_texcoord;\n\
-}";
-
-
-Shaders::Shaders()
-{
-
-	// Create the shaders
-	GLuint VertexShaderID = glCreateShader(GL_VERTEX_SHADER);
-	GLuint FragmentShaderID = glCreateShader(GL_FRAGMENT_SHADER);
-
-
-	GLint Result = GL_FALSE;
-	int InfoLogLength;
-
-	// Compile Vertex Shader
-	char const * VertexSourcePointer = VertexShaderCode.c_str();
-	glShaderSource(VertexShaderID, 1, &VertexSourcePointer, NULL);
-	glCompileShader(VertexShaderID);
-
-	// Check Vertex Shader
-	glGetShaderiv(VertexShaderID, GL_COMPILE_STATUS, &Result);
-	glGetShaderiv(VertexShaderID, GL_INFO_LOG_LENGTH, &InfoLogLength);
-	if (InfoLogLength > 0) {
-		std::vector<char> VertexShaderErrorMessage(InfoLogLength + 1);
-		glGetShaderInfoLog(VertexShaderID, InfoLogLength, NULL, &VertexShaderErrorMessage[0]);
-		printf("%s\n", &VertexShaderErrorMessage[0]);
-	}
-
-	// Compile Fragment Shader
-	char const * FragmentSourcePointer = FragmentShaderCode.c_str();
-	glShaderSource(FragmentShaderID, 1, &FragmentSourcePointer, NULL);
-	glCompileShader(FragmentShaderID);
-
-	// Check Fragment Shader
-	glGetShaderiv(FragmentShaderID, GL_COMPILE_STATUS, &Result);
-	glGetShaderiv(FragmentShaderID, GL_INFO_LOG_LENGTH, &InfoLogLength);
-	if (InfoLogLength > 0) {
-		std::vector<char> FragmentShaderErrorMessage(InfoLogLength + 1);
-		glGetShaderInfoLog(FragmentShaderID, InfoLogLength, NULL, &FragmentShaderErrorMessage[0]);
-		printf("%s\n", &FragmentShaderErrorMessage[0]);
-	}
-
-	// Link the program
-	printf("Linking program\n");
-	GLuint ProgramID = glCreateProgram();
-	glAttachShader(ProgramID, VertexShaderID);
-	glAttachShader(ProgramID, FragmentShaderID);
-	glLinkProgram(ProgramID);
-
-	// Check the program
-	glGetProgramiv(ProgramID, GL_LINK_STATUS, &Result);
-	glGetProgramiv(ProgramID, GL_INFO_LOG_LENGTH, &InfoLogLength);
-	if (InfoLogLength > 0) {
-		std::vector<char> ProgramErrorMessage(InfoLogLength + 1);
-		glGetProgramInfoLog(ProgramID, InfoLogLength, NULL, &ProgramErrorMessage[0]);
-		printf("%s\n", &ProgramErrorMessage[0]);
-	}
-
-	glDetachShader(ProgramID, VertexShaderID);
-	glDetachShader(ProgramID, FragmentShaderID);
-
-	glDeleteShader(VertexShaderID);
-	glDeleteShader(FragmentShaderID);
-
-	this->pid = ProgramID;
-}
-
-
-Shaders::~Shaders()
-{
-}

examples/basic/shaders.h

@@ -1,13 +0,0 @@
-#pragma once
-
-#include <GL/glew.h>
-#include <GLFW/glfw3.h>
-
-class Shaders
-{
-public:
-	GLuint pid;
-	Shaders();
-	~Shaders();
-};
-

examples/basic/window.cpp

@@ -1,27 +0,0 @@
-#include "window.h"
-
-
-
-Window::Window(int x, int y, const char* title)
-{
-	GLFWwindow* window = glfwCreateWindow(x, y, title, NULL, NULL);
-	this->window = window;
-}
-
-
-Window::~Window()
-{
-	glfwDestroyWindow(this->window);
-}
-
-void Window::Resize() 
-{
-	GLint w, h;
-	glfwGetWindowSize(this->window, &w, &h);
-	glViewport(0, 0, w, h);
-}
-
-int Window::Close()
-{
-	return glfwWindowShouldClose(this->window);
-}

examples/basic/window.h

@@ -1,15 +0,0 @@
-#pragma once
-
-#include <GLFW/glfw3.h>
-
-class Window
-{
-public:
-	GLFWwindow* window;
-
-	Window(int x, int y, const char* title);
-	~Window();
-	void Resize();
-	int Close();
-};
-

examples/build-gltf/CMakeLists.txt

@@ -1,5 +0,0 @@
-
-include_directories(${CMAKE_SOURCE_DIR})
-add_executable(create_triangle_gltf create_triangle_gltf.cpp)
-target_compile_options(create_triangle_gltf PUBLIC -Wall)
-target_link_libraries(create_triangle_gltf )

examples/build-gltf/Makefile

@@ -1,2 +0,0 @@
-all:
-	$(CXX) -o create_triangle_gltf -I../../ create_triangle_gltf.cpp

examples/build-gltf/create_triangle_gltf.cpp

@@ -1,121 +0,0 @@
-// An example of how to generate a gltf file from scratch. This example
-// was translated from the pygltlib documentation in the pypi project page,
-// which in turn is based on the Khronos Sample Models at:
-//
-// https://github.com/KhronosGroup/glTF-Sample-Models
-//
-// This example is released under the MIT license. 
-//
-// 2021-02-25 Thu
-// Dov Grobgeld <dov.grobgeld@gmail.com>
-
-
-// Define these only in *one* .cc file.
-#define TINYGLTF_IMPLEMENTATION
-#define STB_IMAGE_IMPLEMENTATION
-#define STB_IMAGE_WRITE_IMPLEMENTATION
-
-// #define TINYGLTF_NOEXCEPTION // optional. disable exception handling.
-#include "tiny_gltf.h"
-
-int main(int argc, char **argv)
-{
-  // Create a model with a single mesh and save it as a gltf file
-  tinygltf::Model m;
-  tinygltf::Scene scene;
-  tinygltf::Mesh mesh;
-  tinygltf::Primitive primitive;
-  tinygltf::Node node;
-  tinygltf::Buffer buffer;
-  tinygltf::BufferView bufferView1;
-  tinygltf::BufferView bufferView2;
-  tinygltf::Accessor accessor1;
-  tinygltf::Accessor accessor2;
-  tinygltf::Asset asset;
-
-  // This is the raw data buffer. 
-  buffer.data = {
-    // 6 bytes of indices and two bytes of padding
-    0x00,0x00,0x01,0x00,0x02,0x00,0x00,0x00,
-    // 36 bytes of floating point numbers
-    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
-    0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x3f,
-    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
-    0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x3f,
-    0x00,0x00,0x00,0x00};
-
-  // "The indices of the vertices (ELEMENT_ARRAY_BUFFER) take up 6 bytes in the
-  // start of the buffer.
-  bufferView1.buffer = 0;
-  bufferView1.byteOffset=0;
-  bufferView1.byteLength=6;
-  bufferView1.target = TINYGLTF_TARGET_ELEMENT_ARRAY_BUFFER;
-
-  // The vertices take up 36 bytes (3 vertices * 3 floating points * 4 bytes)
-  // at position 8 in the buffer and are of type ARRAY_BUFFER
-  bufferView2.buffer = 0;
-  bufferView2.byteOffset=8;
-  bufferView2.byteLength=36;
-  bufferView2.target = TINYGLTF_TARGET_ARRAY_BUFFER;
-
-  // Describe the layout of bufferView1, the indices of the vertices
-  accessor1.bufferView = 0;
-  accessor1.byteOffset = 0;
-  accessor1.componentType = TINYGLTF_COMPONENT_TYPE_UNSIGNED_SHORT;
-  accessor1.count = 3;
-  accessor1.type = TINYGLTF_TYPE_SCALAR;
-  accessor1.maxValues.push_back(2);
-  accessor1.minValues.push_back(0);
-
-  // Describe the layout of bufferView2, the vertices themself
-  accessor2.bufferView = 1;
-  accessor2.byteOffset = 0;
-  accessor2.componentType = TINYGLTF_COMPONENT_TYPE_FLOAT;
-  accessor2.count = 3;
-  accessor2.type = TINYGLTF_TYPE_VEC3;
-  accessor2.maxValues = {1.0, 1.0, 0.0};
-  accessor2.minValues = {0.0, 0.0, 0.0};
-
-  // Build the mesh primitive and add it to the mesh
-  primitive.indices = 0;                 // The index of the accessor for the vertex indices
-  primitive.attributes["POSITION"] = 1;  // The index of the accessor for positions
-  primitive.material = 0;
-  primitive.mode = TINYGLTF_MODE_TRIANGLES;
-  mesh.primitives.push_back(primitive);
-
-  // Other tie ups
-  node.mesh = 0;
-  scene.nodes.push_back(0); // Default scene
-
-  // Define the asset. The version is required
-  asset.version = "2.0";
-  asset.generator = "tinygltf";
-
-  // Now all that remains is to tie back all the loose objects into the
-  // our single model.
-  m.scenes.push_back(scene);
-  m.meshes.push_back(mesh);
-  m.nodes.push_back(node);
-  m.buffers.push_back(buffer);
-  m.bufferViews.push_back(bufferView1);
-  m.bufferViews.push_back(bufferView2);
-  m.accessors.push_back(accessor1);
-  m.accessors.push_back(accessor2);
-  m.asset = asset;
-
-  // Create a simple material
-  tinygltf::Material mat;
-  mat.pbrMetallicRoughness.baseColorFactor = {1.0f, 0.9f, 0.9f, 1.0f};  
-  mat.doubleSided = true;
-  m.materials.push_back(mat);
-
-  // Save it to a file
-  tinygltf::TinyGLTF gltf;
-  gltf.WriteGltfSceneToFile(&m, "triangle.gltf",
-                           true, // embedImages
-                           true, // embedBuffers
-                           true, // pretty print
-                           false); // write binary
-  
-  exit(0);
-}

examples/common/LICENSE.lodepng

@@ -1,21 +0,0 @@
-Copyright (c) 2005-2018 Lode Vandevenne
-
-This software is provided 'as-is', without any express or implied
-warranty. In no event will the authors be held liable for any damages
-arising from the use of this software.
-
-Permission is granted to anyone to use this software for any purpose,
-including commercial applications, and to alter it and redistribute it
-freely, subject to the following restrictions:
-
-    1. The origin of this software must not be misrepresented; you must not
-    claim that you wrote the original software. If you use this software
-    in a product, an acknowledgment in the product documentation would be
-    appreciated but is not required.
-
-    2. Altered source versions must be plainly marked as such, and must not be
-    misrepresented as being the original software.
-
-    3. This notice may not be removed or altered from any source
-    distribution.
-    

examples/common/matrix.cc

@@ -99,6 +99,28 @@ void Matrix::LookAt(float m[4][4], float eye[3], float lookat[3],
 #endif
 }
 
+void Matrix::Identity(float m[4][4]) {
+  m[0][0] = 1.0f;
+  m[0][1] = 0.0f;
+  m[0][2] = 0.0f;
+  m[0][3] = 0.0f;
+
+  m[1][0] = 0.0f;
+  m[1][1] = 1.0f;
+  m[1][2] = 0.0f;
+  m[1][3] = 0.0f;
+
+  m[2][0] = 0.0f;
+  m[2][1] = 0.0f;
+  m[2][2] = 1.0f;
+  m[2][3] = 0.0f;
+
+  m[3][0] = 0.0f;
+  m[3][1] = 0.0f;
+  m[3][2] = 0.0f;
+  m[3][3] = 1.0f;
+}
+
 void Matrix::Inverse(float m[4][4]) {
   /*
    * codes from intel web
@@ -195,7 +217,16 @@ void Matrix::Inverse(float m[4][4]) {
   }
 }
 
-void Matrix::Mult(float dst[4][4], float m0[4][4], float m1[4][4]) {
+void Matrix::Add(float dst[4][4], const float m0[4][4], const float m1[4][4]) {
+  for (int i = 0; i < 4; ++i) {
+    for (int j = 0; j < 4; ++j) {
+      dst[i][j] += m0[i][j] + m1[i][j];
+    }
+  }
+}
+
+
+void Matrix::Mult(float dst[4][4], const float m0[4][4], const float m1[4][4]) {
   for (int i = 0; i < 4; ++i) {
     for (int j = 0; j < 4; ++j) {
       dst[i][j] = 0;
@@ -206,7 +237,7 @@ void Matrix::Mult(float dst[4][4], float m0[4][4], float m1[4][4]) {
   }
 }
 
-void Matrix::MultV(float dst[3], float m[4][4], float v[3]) {
+void Matrix::MultV(float dst[3], const float m[4][4], const float v[3]) {
   // printf("v = %f, %f, %f\n", v[0], v[1], v[2]);
   dst[0] = m[0][0] * v[0] + m[1][0] * v[1] + m[2][0] * v[2] + m[3][0];
   dst[1] = m[0][1] * v[0] + m[1][1] * v[1] + m[2][1] * v[2] + m[3][1];
@@ -214,3 +245,10 @@ void Matrix::MultV(float dst[3], float m[4][4], float v[3]) {
   // printf("m = %f, %f, %f\n", m[3][0], m[3][1], m[3][2]);
   // printf("dst = %f, %f, %f\n", dst[0], dst[1], dst[2]);
 }
+
+void Matrix::MultV4(float dst[4], const float m[4][4], const float v[4]) {
+  dst[0] = m[0][0] * v[0] + m[1][0] * v[1] + m[2][0] * v[2] + m[3][0] * v[3];
+  dst[1] = m[0][1] * v[0] + m[1][1] * v[1] + m[2][1] * v[2] + m[3][1] * v[3];
+  dst[2] = m[0][2] * v[0] + m[1][2] * v[1] + m[2][2] * v[2] + m[3][2] * v[3];
+  dst[3] = m[0][3] * v[0] + m[1][3] * v[1] + m[2][3] * v[2] + m[3][3] * v[3];
+}

examples/common/matrix.h

@@ -10,8 +10,11 @@ public:
   static void LookAt(float m[4][4], float eye[3], float lookat[3],
                      float up[3]);
   static void Inverse(float m[4][4]);
-  static void Mult(float dst[4][4], float m0[4][4], float m1[4][4]);
-  static void MultV(float dst[3], float m[4][4], float v[3]);
+  static void Identity(float m[4][4]);
+  static void Add(float dst[4][4], const float m0[4][4], const float m1[4][4]);
+  static void Mult(float dst[4][4], const float m0[4][4], const float m1[4][4]);
+  static void MultV(float dst[3], const float m[4][4], const float v[3]);
+  static void MultV4(float dst[4], const float m[4][4], const float v[4]);
 };
 
 #endif  // 

examples/common/trackball.cc

@@ -52,11 +52,6 @@
 #include <math.h>
 #include "trackball.h"
 
-#ifdef _MSC_VER
-#pragma warning(disable : 4244)
-#pragma warning(disable : 4305)
-#endif
-
 /*
  * This size should really be based on the distance from the center of
  * rotation to the point on the object underneath the mouse.  That
@@ -173,11 +168,11 @@ void trackball(float q[4], float p1x, float p1y, float p2x, float p2y) {
   /*
    * Avoid problems with out-of-control values...
    */
-  if (t > 1.0f)
-    t = 1.0f;
-  if (t < -1.0f)
-    t = -1.0f;
-  phi = 2.0f * asinf(t);
+  if (t > 1.0)
+    t = 1.0;
+  if (t < -1.0)
+    t = -1.0;
+  phi = 2.0 * asin(t);
 
   axis_to_quat(a, phi, q);
 }

examples/dxview/CMakeLists.txt

@@ -1,36 +0,0 @@
-cmake_minimum_required(VERSION 3.5)
-project(dxview)
-
-find_package(glfw3 CONFIG REQUIRED)
-find_package(spdlog CONFIG REQUIRED)
-
-add_executable(dxview
-    src/Viewer.h
-    src/Viewer.cc
-    src/dxview.cc
-)
-
-target_include_directories(dxview
-PRIVATE
-    ../../
-)
-
-target_compile_definitions(dxview
-PRIVATE
-    DXVIEW_SWAP_CHAIN_BUFFER_COUNT=3
-    DXVIEW_RES_DIR=L"${PROJECT_SOURCE_DIR}/res"
-)
-
-target_link_libraries(dxview
-PRIVATE
-    dxgi
-    d3dcompiler
-    d3d12
-    glfw
-    spdlog::spdlog
-)
-
-set_target_properties(dxview
-PROPERTIES
-    CXX_STANDARD 17
-)

examples/dxview/README.md

@@ -1,37 +0,0 @@
-# DirectX glTF Viewer
-
-## Overview
-
-This project was motivated by a lack of sample code demonstrating the graphics API agnostic nature of the glTF specification. The sample code is written using modern C++ and DirectX 12 for the client application.
-
-## Features
-
-* [x] DirectX 12
-* [ ] Loader
-* [ ] Animation
-* [ ] Morph Target
-* [ ] Physical Base Rendering
-* [ ] Environment Map
-
-## Dependencies
-
-* [CMake](https://github.com/Kitware/CMake)
-* [Vcpkg](https://github.com/Microsoft/vcpkg)
-* [GLFW](https://github.com/glfw/glfw)
-* [spdlog](https://github.com/gabime/spdlog)
-
-## Building
-
-### Install dependencies
-
-```
-vcpkg install glfw3:x64-windows
-vcpkg install spdlog:x64-windows
-```
-
-### Generate Project Files
-
-```
-mkdir build
-cmake . -B build -DCMAKE_TOOLCHAIN_FILE=${VCPKG_DIR}/script/buildsystem/vcpkg.cmake
-```

examples/dxview/res/gray.hlsl

@@ -1,3 +0,0 @@
-float4 main() : SV_Target {
-    return float4(0.5, 0.5, 0.5, 1.0);
-}

examples/dxview/res/lighting.hlsl

@@ -1,52 +0,0 @@
-struct RS2PS {
-    float4 position : SV_POSITION;
-
-#ifdef HAS_TEXCOORD_0
-    float2 texcoord_0: TEXCOORD_0;
-#endif
-};
-
-struct TextureInfo {
-    uint textureIndex;
-    uint samplerIndex;
-};
-
-struct PBRMetallicRoughness {
-    float4 baseColorFactor;
-    TextureInfo baseColorTexture;
-    float metallicFactor;
-    float roughnessFactor;
-    TextureInfo metallicRoughnessTexture;
-};
-
-cbuffer Material : register(b2) {
-    PBRMetallicRoughness pbrMetallicRoughness;
-};
-
-Texture2D textures[5] : register(t0);
-SamplerState samplerState[5] : register(s0);
-
-float4 getBaseColor(float2 uv) {
-    float4 baseColor = pbrMetallicRoughness.baseColorFactor;
-
-#ifdef HAS_TEXCOORD_0
-    TextureInfo baseColorTexture = pbrMetallicRoughness.baseColorTexture;
-    if (baseColorTexture.textureIndex >= 0) {
-        baseColor *= textures[baseColorTexture.textureIndex].Sample(samplerState[baseColorTexture.samplerIndex], uv);
-    }
-#endif
-
-    return baseColor;
-}
-
-float4 main(RS2PS input) : SV_Target {
-    float2 uv = float2(0.0, 0.0);
-
-#ifdef HAS_TEXCOORD_0
-    uv = input.texcoord_0;
-#endif
-
-    float4 color = getBaseColor(uv);
-
-    return color;
-}

examples/dxview/res/primitive.hlsl

@@ -1,46 +0,0 @@
-struct IA2VS {
-    float3 position  : POSITION;
-
-#ifdef HAS_NORMAL
-    float3 normal : NORMAL;
-#endif
-
-#ifdef HAS_TANGENT
-    float4 tangent : TANGENT;
-#endif
-
-#ifdef HAS_TEXCOORD_0
-    float2 texcoord_0: TEXCOORD_0;
-#endif
-};
-
-struct VS2RS {
-    float4 position : SV_POSITION;
-
-#ifdef HAS_TEXCOORD_0
-    float2 texcoord_0: TEXCOORD_0;
-#endif
-};
-
-cbuffer Camera : register(b0) {
-    float4x4 V;
-    float4x4 P;
-    float4x4 VP;
-};
-
-cbuffer Node : register(b1) {
-    float4x4 M;
-};
-
-VS2RS main(IA2VS input) {
-    VS2RS output;
-    output.position = mul(float4(input.position, 1.0), M);
-    output.position = mul(output.position, V);
-    output.position = mul(output.position, P);
-
-#ifdef HAS_TEXCOORD_0
-    output.texcoord_0 = input.texcoord_0;
-#endif
-
-    return output;
-}

examples/dxview/src/Viewer.h

@@ -1,130 +0,0 @@
-#ifndef DXVIEW_VIEWER_GUARD
-#define DXVIEW_VIEWER_GUARD
-
-#include <DirectXMath.h>
-#include <d3d12.h>
-#include <dxgi1_6.h>
-#include <tiny_gltf.h>
-#include <wrl.h>
-
-#include <filesystem>
-#include <map>
-#include <string>
-#include <vector>
-
-using Microsoft::WRL::ComPtr;
-
-enum RenderPassType { RENDER_PASS_TYPE_PRESENT = 0, RENDER_PASS_TYPE_COUNT };
-
-struct RenderTarget {
-  ComPtr<ID3D12Resource> pTexture;
-  D3D12_CPU_DESCRIPTOR_HANDLE viewDescriptor;
-};
-
-struct TextureInfo {
-  int32_t textureIndex;
-  int32_t samplerIndex;
-};
-
-struct PBRMetallicRoughness {
-  DirectX::XMFLOAT4 baseColorFactor;
-  TextureInfo baseColorTexture;
-  float metallicFactor;
-  float roughnessFactor;
-  TextureInfo metallicRoughnessTexture;
-};
-
-struct Material {
-  std::string name;
-  D3D12_BLEND_DESC blendDesc;
-  D3D12_RASTERIZER_DESC rasterizerDesc;
-  ComPtr<ID3D12Resource> pBuffer;
-  void* pBufferData;
-  ComPtr<ID3D12DescriptorHeap> pSRVDescriptorHeap;
-  ComPtr<ID3D12DescriptorHeap> pSamplerDescriptorHeap;
-};
-
-struct Attribute {
-  std::string name;
-  DXGI_FORMAT format;
-  D3D12_VERTEX_BUFFER_VIEW vertexBufferView;
-};
-
-struct Primitive {
-  std::vector<Attribute> attributes;
-  uint32_t vertexCount;
-  D3D12_PRIMITIVE_TOPOLOGY primitiveTopology;
-  D3D12_INDEX_BUFFER_VIEW indexBufferView;
-  uint32_t indexCount;
-  Material* pMaterial;
-  ComPtr<ID3D12RootSignature> pRootSignature;
-  ComPtr<ID3D12PipelineState> pPipelineState;
-};
-
-struct Mesh {
-  std::string name;
-  std::vector<Primitive> primitives;
-};
-
-struct Node {
-  DirectX::XMFLOAT4X4 M;
-};
-
-struct Camera {
-  DirectX::XMFLOAT4X4 V;
-  DirectX::XMFLOAT4X4 P;
-  DirectX::XMFLOAT4X4 VP;
-};
-
-class Viewer {
- public:
-  Viewer(HWND window, tinygltf::Model* pModel);
-
-  void update(double deltaTime);
-  void render(double deltaTime);
-
- private:
-  void initDirectX(HWND window);
-  void buildRenderTargets();
-  void buildResources();
-  void buildBuffers(std::vector<ComPtr<ID3D12Resource> >* pStagingResources);
-  void buildImages(std::vector<ComPtr<ID3D12Resource> >* pStagingResources);
-  void buildSamplerDescs();
-  void buildMaterials();
-  void buildMeshes();
-  void buildNodes();
-
-  void drawNode(uint64_t nodeIndex);
-
- private:
-  tinygltf::Model* pModel_;
-  ComPtr<IDXGIFactory1> pFactory_;
-  ComPtr<IDXGIAdapter1> pAdapter_;
-  ComPtr<ID3D12Device> pDevice_;
-  ComPtr<ID3D12CommandQueue> pDirectCommandQueue_;
-  UINT64 directFenceValue_;
-  ComPtr<ID3D12Fence> pDirectFence_;
-  ComPtr<ID3D12CommandQueue> pCopyCommandQueue_;
-  UINT64 copyFenceValue_;
-  ComPtr<ID3D12Fence> pCopyFence_;
-  ComPtr<IDXGISwapChain3> pSwapChain_;
-  ComPtr<ID3D12Resource> pSwapChainBuffers_[DXVIEW_SWAP_CHAIN_BUFFER_COUNT];
-  ComPtr<ID3D12CommandAllocator>
-      pDirectCommandAllocators_[DXVIEW_SWAP_CHAIN_BUFFER_COUNT];
-  ComPtr<ID3D12GraphicsCommandList> pDirectCommandList_;
-  ComPtr<ID3D12CommandAllocator> pCopyCommandAllocator_;
-  ComPtr<ID3D12GraphicsCommandList> pCopyCommandList_;
-  UINT descriptorIncrementSize_[D3D12_DESCRIPTOR_HEAP_TYPE_NUM_TYPES];
-  ComPtr<ID3D12DescriptorHeap>
-      pRTVDescriptorHeaps_[DXVIEW_SWAP_CHAIN_BUFFER_COUNT];
-  std::vector<RenderTarget> renderTargets_[DXVIEW_SWAP_CHAIN_BUFFER_COUNT];
-  std::vector<ComPtr<ID3D12Resource> > pBuffers_;
-  std::vector<ComPtr<ID3D12Resource> > pTextures_;
-  std::vector<D3D12_SAMPLER_DESC> samplerDescs_;
-  std::vector<Material> materials_;
-  std::vector<Mesh> meshes_;
-  std::vector<ComPtr<ID3D12Resource> > pNodeBuffers_;
-  ComPtr<ID3D12Resource> pCameraBuffer_;
-};
-
-#endif

examples/dxview/src/dxview.cc

@@ -1,90 +0,0 @@
-#define GLFW_EXPOSE_NATIVE_WIN32
-#define TINYGLTF_IMPLEMENTATION
-#define STBI_MSC_SECURE_CRT
-#define STB_IMAGE_IMPLEMENTATION
-#define STB_IMAGE_WRITE_IMPLEMENTATION
-
-#include <GLFW/glfw3.h>
-#include <GLFW/glfw3native.h>
-#include <spdlog/spdlog.h>
-#include <tiny_gltf.h>
-
-#undef GLFW_EXPOSE_NATIVE_WIN32
-#undef TINYGLTF_IMPLEMENTATION
-#undef STBI_MSC_SECURE_CRT
-#undef STB_IMAGE_IMPLEMENTATION
-#undef STB_IMAGE_WRITE_IMPLEMENTATION
-
-#include <iostream>
-#include <string>
-
-#include "Viewer.h"
-
-static void onError(int error, const char* message) {
-  spdlog::error("[{}] {}", error, message);
-}
-
-static void onRender(Viewer* pViewer, double deltaTime) {
-  pViewer->update(deltaTime);
-  pViewer->render(deltaTime);
-}
-
-int main(int argc, char* argv[]) {
-  tinygltf::TinyGLTF context;
-
-  tinygltf::Model model;
-  std::string error;
-  std::string warning;
-  if (!context.LoadASCIIFromFile(&model, &error, &warning, argv[1])) {
-    if (!error.empty()) {
-      spdlog::error("{}", error);
-    }
-
-    if (!warning.empty()) {
-      spdlog::warn("{}", warning);
-    }
-
-    exit(EXIT_FAILURE);
-  }
-
-  GLFWwindow* pWindow;
-
-  glfwSetErrorCallback(onError);
-
-  if (!glfwInit()) {
-    spdlog::error("Fail to initialize GLFW!!!");
-    exit(EXIT_FAILURE);
-  }
-
-  glfwWindowHint(GLFW_CLIENT_API, GLFW_NO_API);
-  glfwWindowHint(GLFW_RESIZABLE, GLFW_FALSE);
-
-  pWindow = glfwCreateWindow(512, 512, "dxview", nullptr, nullptr);
-  if (!pWindow) {
-    spdlog::error("Fail to create GLFWwindow!!!");
-    glfwTerminate();
-    exit(EXIT_FAILURE);
-  }
-
-  auto pViewer = std::make_unique<Viewer>(glfwGetWin32Window(pWindow), &model);
-  if (!pViewer) {
-    spdlog::error("Fail to create Viewer");
-    glfwDestroyWindow(pWindow);
-    glfwTerminate();
-    exit(EXIT_FAILURE);
-  }
-
-  auto prevTimeStamp = glfwGetTime();
-  while (!glfwWindowShouldClose(pWindow)) {
-    auto currTimeStamp = glfwGetTime();
-
-    onRender(pViewer.get(), currTimeStamp - prevTimeStamp);
-    prevTimeStamp = currTimeStamp;
-
-    glfwPollEvents();
-  }
-
-  glfwDestroyWindow(pWindow);
-  glfwTerminate();
-  exit(EXIT_SUCCESS);
-}

examples/gltfutil/CMakeLists.txt

@@ -4,13 +4,6 @@ project(gltfutil)
 set(CMAKE_CXX_STANDARD 11)
 
 include_directories(../../)
-include_directories(../common/)
 
 file(GLOB gltfutil_sources *.cc *.h)
-add_executable(gltfutil ${gltfutil_sources} ../common/lodepng.cpp)
-
-install ( TARGETS
-  gltfutil
-  DESTINATION
-  bin
-  )
+add_executable(gltfutil ${gltfutil_sources})

examples/gltfutil/gltfuilconfig.h

@@ -49,7 +49,6 @@ struct configuration {
   cli_action action = cli_action::not_set;
   texture_dumper::texture_output_format requested_format =
       texture_dumper::texture_output_format::not_specified;
-  bool use_exr = false;
 
   bool has_output_dir;
   bool is_valid() {

examples/gltfutil/main.cc

@@ -11,9 +11,6 @@
 #define STB_IMAGE_WRITE_IMPLEMENTATION
 #include "stb_image_write.h"
 
-#define TINYEXR_IMPLEMENTATION
-#include "tinyexr.h"
-
 namespace gltfutil {
 int usage(int ret = 0) {
   using std::cout;
@@ -23,9 +20,8 @@ int usage(int ret = 0) {
           "[path to output directory])\n\n"
        //<< "\t\t -i: start in interactive mode\n"
        << "\t\t -d: dump enclosed content (image assets)\n"
-       << "\t\t -f: file format for image output\n"
-       << "\t\t -o: ouptput directory path\n"
-       << "\t\t -e: Use OpenEXR format for 16bit image\n"
+       << "\t\t -f: file format for image output"
+       << "\t\t -o: ouptput directory path"
        << "\t\t -h: print this help\n";
   return ret;
 }
@@ -48,9 +44,6 @@ int parse_args(int argc, char** argv) {
           config.mode = ui_mode::cli;
           config.action = cli_action::dump;
           break;
-        case 'e':
-          config.use_exr = true;
-          break;
         case 'i':
           config.mode = ui_mode::interactive;
           break;
@@ -104,11 +97,6 @@ int parse_args(int argc, char** argv) {
 
         case cli_action::dump: {
           texture_dumper dumper(model);
-
-          if (config.use_exr) {
-            dumper.set_use_exr(true);
-          }
-
           if (config.requested_format !=
               texture_dumper::texture_output_format::not_specified)
             dumper.set_output_format(config.requested_format);

examples/gltfutil/texture_dumper.cc

@@ -1,84 +1,15 @@
-#include <algorithm>
 #include <iostream>
+#include <algorithm>
 
 #include "stb_image_write.h"
 #include "texture_dumper.h"
 
-#include "lodepng.h"  // ../common
-
-#include "tinyexr.h"
-
 #include <tiny_gltf.h>
 
 using namespace gltfutil;
 using namespace tinygltf;
 using std::cout;
 
-static LodePNGColorType GetLodePNGColorType(int channels) {
-  if (channels == 1) {
-    return LodePNGColorType::LCT_GREY;
-  } else if (channels == 2) {
-    return LodePNGColorType::LCT_GREY_ALPHA;
-  } else if (channels == 3) {
-    return LodePNGColorType::LCT_RGB;
-  } else if (channels == 4) {
-    return LodePNGColorType::LCT_RGBA;
-  } else {
-    std::cerr << "??? unsupported channels " << channels << "\n";
-    return LodePNGColorType::LCT_RGB;  // FIXME(syoyo): Raise error
-  }
-}
-
-static void ToBigEndian(std::vector<uint8_t>* image) {
-
-  assert(image->size() % 2 == 0);
-
-  union {
-    unsigned int i;
-    char c[4];
-  } bint = {0x01020304};
-
-  bool is_big_endian = (bint.c[0] == 1);
-
-  if (is_big_endian) {
-    return;
-  }
-
-  uint16_t *ptr = reinterpret_cast<uint16_t *>(image->data());
-  size_t n = image->size() / 2;
-
-  for (size_t i = 0; i < n; i++) {
-    ptr[i] = ((0xFF00 & ptr[i]) >> 8) | ((0x00FF & ptr[i]) << 8);
-  }
-}
-
-static bool Save16bitImageAsEXR(const std::string& filename,
-                                const tinygltf::Image& image) {
-  assert(image.bits == 16);
-
-  std::vector<float> buf(image.width * image.height * image.component);
-
-  // widen to float image.
-  // Store as is(i.e, pixel value range is [0.0, 65535.0])
-  const unsigned short* ptr =
-      reinterpret_cast<const unsigned short*>(image.image.data());
-  for (size_t i = 0; i < image.width * image.height * image.component; i++) {
-    buf[i] = float(ptr[i]);
-  }
-
-  const char* err = nullptr;
-  int ret = SaveEXR(buf.data(), image.width, image.height, image.component,
-                    /* save_as_fp16 */ 0, filename.c_str(), &err);
-
-  if (err) {
-    std::cerr << "EXR err: " << err << std::endl;
-    FreeEXRErrorMessage(err);
-    return false;
-  }
-
-  return (ret == TINYEXR_SUCCESS);
-}
-
 texture_dumper::texture_dumper(const Model& input)
     : model(input), configured_format(texture_output_format::png) {
   cout << "Texture dumper\n";
@@ -95,58 +26,26 @@ void texture_dumper::dump_to_folder(const std::string& path) {
     cout << "image name is: \"" << image.name << "\"\n";
     cout << "image size is: " << image.width << 'x' << image.height << '\n';
     cout << "pixel channel count :" << image.component << '\n';
-    cout << "pixel bit depth :" << image.bits << '\n';
-    std::string basename =
-        image.name.empty() ? std::to_string(index) : image.name;
+    std::string name = image.name.empty() ? std::to_string(index) : image.name;
 
-    unsigned char* bytes_to_write =
-        const_cast<unsigned char*>(image.image.data());
-
-    std::string filename;
     switch (configured_format) {
       case texture_output_format::png:
-        filename = path + "/" + basename + ".png";
-
-        if (this->use_exr) {
-          if (image.pixel_type == TINYGLTF_COMPONENT_TYPE_UNSIGNED_SHORT) {
-            filename = path + "/" + basename + ".exr";
-          }
-        }
-
-        std::cout << "Image will be written to " << filename << '\n';
-
-        if (image.pixel_type == TINYGLTF_COMPONENT_TYPE_UNSIGNED_SHORT) {
-          if (this->use_exr) {
-            bool ret = Save16bitImageAsEXR(filename, image);
-            assert(ret);
-          } else {
-            // Use lodepng to save 16bit PNG.
-            // NOTE(syoyo): `loadpng::encode` requires image data must be stored in big endian.
-            std::vector<uint8_t> tmp = image.image; // copy
-            ToBigEndian(&tmp);
-
-            unsigned ret = lodepng::encode(
-                filename, tmp.data(), image.width, image.height,
-                GetLodePNGColorType(image.component), /* bits */ 16);
-            assert(ret == 0);  // 0 = no err.
-          }
-        } else {
-          // TODO(syoyo): check status
-          stbi_write_png(filename.c_str(), image.width, image.height,
-                         image.component, bytes_to_write, 0);
-        }
+        name = path + "/" + name + ".png";
+        std::cout << "Image will be written to " << name << '\n';
+        stbi_write_png(name.c_str(), image.width, image.height, image.component,
+                       image.image.data(), 0);
         break;
       case texture_output_format::bmp:
-        filename = path + "/" + basename + ".bmp";
-        std::cout << "Image will be written to " << filename << '\n';
-        stbi_write_bmp(filename.c_str(), image.width, image.height,
-                       image.component, bytes_to_write);
+        std::cout << "Image will be written to " << name << '\n';
+        name = path + "/" + name + ".bmp";
+        stbi_write_bmp(name.c_str(), image.width, image.height, image.component,
+                       image.image.data());
         break;
       case texture_output_format::tga:
-        filename = path + "/" + basename + ".tga";
-        std::cout << "Image will be written to " << filename << '\n';
-        stbi_write_tga(filename.c_str(), image.width, image.height,
-                       image.component, bytes_to_write);
+        std::cout << "Image will be written to " << name << '\n';
+        name = path + "/" + name + ".tga";
+        stbi_write_tga(name.c_str(), image.width, image.height, image.component,
+                       image.image.data());
         break;
     }
   }

examples/gltfutil/texture_dumper.h

@@ -12,15 +12,11 @@ class texture_dumper {
  private:
   const tinygltf::Model& model;
   texture_output_format configured_format;
-  bool use_exr = false; // Use EXR for 16bit image?
 
  public:
   texture_dumper(const tinygltf::Model& inputModel);
   void dump_to_folder(const std::string& path = "./");
   void set_output_format(texture_output_format format);
-  void set_use_exr(const bool value) {
-    use_exr = value;
-  }
 
   static texture_output_format get_fromat_from_string(const std::string& str);
 };

examples/glview/.gitignore

@@ -1,7 +0,0 @@
-.vs
-Debug
-x64
-packages
-
-!*.sln
-!*.vcxproj*

examples/glview/CMakeLists.txt

@@ -1,69 +0,0 @@
-cmake_minimum_required(VERSION 3.5)
-project(glview)
-
-set ( CMAKE_PREFIX_PATH cmake )
-
-set ( DRACO_DIR "" CACHE STRING "Path to draco" )
-
-find_package ( GLEW REQUIRED )
-find_package ( GLFW3 REQUIRED )
-find_package ( OpenGL REQUIRED )
-
-if (APPLE)
-  find_library(COCOA_LIBRARY Cocoa)
-  find_library(COREVIDEO_LIBRARY CoreVideo)
-  find_library(IOKIT_LIBRARY IOKit)
-else ()
-  if (NOT WIN32)
-	# This means it is Unices
-	set ( GLFW3_UNIX_LINK_LIBRARIES X11 Xxf86vm Xrandr Xi Xinerama Xcursor )
-	find_package (Threads)
-  endif()
-endif (APPLE)
-
-set(CMAKE_CXX_STANDARD 11)
-
-if (DEFINED DRACO_DIR)
-  if (DRACO_DIR STREQUAL "")
-  else ()
-    # TODO(syoyo): better CMake script for draco
-    add_definitions(-DTINYGLTF_ENABLE_DRACO)
-    include_directories(${DRACO_DIR}/include)
-
-    link_directories(${DRACO_DIR}/lib)
-    set(DRACO_LIBRARY draco)
-  endif ()
-endif()
-
-include_directories(
-  ../../
-  ../common
-  # ${OPENGL_INCLUDE_DIR}
-  ${GLEW_INCLUDE_DIR}
-  ${GLFW3_INCLUDE_DIR}
-  )
-
-add_executable(glview
-  glview.cc
-  ../common/trackball.cc
-  )
-
-target_link_libraries ( glview
-  ${DRACO_LIBRARY}
-  ${GLFW3_UNIX_LINK_LIBRARIES}
-  ${GLEW_LIBRARIES}
-  ${GLFW3_glfw_LIBRARY}
-  ${OPENGL_gl_LIBRARY}
-  ${OPENGL_glu_LIBRARY}
-  ${COCOA_LIBRARY}
-  ${COREVIDEO_LIBRARY}
-  ${IOKIT_LIBRARY}
-  ${CMAKE_DL_LIBS}
-  ${CMAKE_THREAD_LIBS_INIT}
-  )
-
-install ( TARGETS
-  glview
-  DESTINATION
-  bin
-  )

examples/glview/README.md

@@ -27,17 +27,6 @@ Open .sln in Visual Studio 2013
 
 When running .exe, glew and glfw dll must exist in the working directory.
 
-#### Build with Draco(optional)
-
-Assume CMake build.
-
-```
-$ mkdir build
-$ cd build
-$ cmake -DDRACO_DIR=/path/to/draco ../
-$ make
-```
-
 ## TODO
 
 * [ ] PBR Material

examples/glview/cmake/GLFW3Config.cmake

@@ -1,71 +0,0 @@
-#-*-cmake-*-
-#
-# yue.nicholas@gmail.com
-#
-# This auxiliary CMake file helps in find the glfw3 headers and libraries
-#
-# GLFW3_FOUND            set if glfw3 is found.
-# GLFW3_INCLUDE_DIR      glfw3's include directory
-# GLFW3_LIBRARY_DIR      glfw3's library directory
-# GLFW3_LIBRARIES        all glfw3 libraries
-
-FIND_PACKAGE (Threads)
-
-FIND_PACKAGE ( PackageHandleStandardArgs )
-
-FIND_PATH( GLFW3_LOCATION include/GLFW/glfw3.h
-  "$ENV{GLFW3_HOME}"
-)
-
-FIND_PACKAGE_HANDLE_STANDARD_ARGS ( GLFW3
-  REQUIRED_VARS GLFW3_LOCATION
-  )
-
-IF (GLFW3_FOUND)
-  SET( GLFW3_INCLUDE_DIR "${GLFW3_LOCATION}/include" CACHE STRING "GLFW3 include path")
-  IF (GLFW3_USE_STATIC_LIBS)
-    FIND_LIBRARY ( GLFW3_glfw_LIBRARY  libglfw3.a  ${GLFW3_LOCATION}/lib
-	  )
-  ELSE (GLFW3_USE_STATIC_LIBS)
-	# On windows build, we need to look for glfw3
-	IF (WIN32)
-	  SET ( GLFW3_LIBRARY_NAME glfw3 )
-	ELSE ()
-	  SET ( GLFW3_LIBRARY_NAME glfw )
-	ENDIF()
-    FIND_LIBRARY ( GLFW3_glfw_LIBRARY ${GLFW3_LIBRARY_NAME} ${GLFW3_LOCATION}/lib
-	  )
-  ENDIF (GLFW3_USE_STATIC_LIBS)
-
-  IF (APPLE)
-	FIND_LIBRARY ( COCOA_LIBRARY Cocoa )
-	FIND_LIBRARY ( IOKIT_LIBRARY IOKit )
-	FIND_LIBRARY ( COREVIDEO_LIBRARY CoreVideo )
-  ELSEIF (UNIX AND NOT APPLE)
-	SET ( GLFW3_REQUIRED_X11_LIBRARIES
-	  X11
-      Xi
-      Xrandr
-      Xinerama
-      Xcursor
-      Xxf86vm
-	  m
-	  ${CMAKE_DL_LIBS}
-	  ${CMAKE_THREAD_LIBS_INIT}
-      )
-  ENDIF ()
-  
-  SET ( GLFW3_LIBRARIES
-	${OPENGL_gl_LIBRARY}
-	${OPENGL_glu_LIBRARY}
-	${GLFW3_glfw_LIBRARY}
-	# UNIX
-	${GLFW3_REQUIRED_X11_LIBRARIES}
-	# APPLE
-	${COCOA_LIBRARY}
-	${IOKIT_LIBRARY}
-	${COREVIDEO_LIBRARY}
-	CACHE STRING "GLFW3 required libraries"
-	)
-  
-ENDIF ()

examples/glview/glview.cc

@@ -12,23 +12,15 @@
 #define GLFW_INCLUDE_GLU
 #include <GLFW/glfw3.h>
 
-#ifdef _WIN32
-#include "../common/trackball.h"
-#else
 #include "trackball.h"
-#endif
 
 #define TINYGLTF_IMPLEMENTATION
 #define STB_IMAGE_IMPLEMENTATION
 #define STB_IMAGE_WRITE_IMPLEMENTATION
-
-#ifdef _WIN32
-#include "../../tiny_gltf.h"
-#else
 #include "tiny_gltf.h"
-#endif
 
-#define BUFFER_OFFSET(i) ((char *)NULL + (i))
+//#define BUFFER_OFFSET(i) ((char *)NULL + (i))
+#define BUFFER_OFFSET(i) (reinterpret_cast<void *>(i))
 
 #define CheckGLErrors(desc)                                                   \
   {                                                                           \
@@ -54,9 +46,7 @@ float eye[3], lookat[3], up[3];
 
 GLFWwindow *window;
 
-typedef struct {
-  GLuint vb;
-} GLBufferState;
+typedef struct { GLuint vb; } GLBufferState;
 
 typedef struct {
   std::vector<GLuint> diffuseTex;  // for each primitive in mesh
@@ -255,26 +245,6 @@ void motionFunc(GLFWwindow *window, double mouse_x, double mouse_y) {
   prevMouseY = mouse_y;
 }
 
-static size_t ComponentTypeByteSize(int type) {
-  switch (type) {
-    case TINYGLTF_COMPONENT_TYPE_UNSIGNED_BYTE:
-    case TINYGLTF_COMPONENT_TYPE_BYTE:
-      return sizeof(char);
-    case TINYGLTF_COMPONENT_TYPE_UNSIGNED_SHORT:
-    case TINYGLTF_COMPONENT_TYPE_SHORT:
-      return sizeof(short);
-    case TINYGLTF_COMPONENT_TYPE_UNSIGNED_INT:
-    case TINYGLTF_COMPONENT_TYPE_INT:
-      return sizeof(int);
-    case TINYGLTF_COMPONENT_TYPE_FLOAT:
-      return sizeof(float);
-    case TINYGLTF_COMPONENT_TYPE_DOUBLE:
-      return sizeof(double);
-    default:
-      return 0;
-  }
-}
-
 static void SetupMeshState(tinygltf::Model &model, GLuint progId) {
   // Buffer
   {
@@ -282,24 +252,7 @@ static void SetupMeshState(tinygltf::Model &model, GLuint progId) {
       const tinygltf::BufferView &bufferView = model.bufferViews[i];
       if (bufferView.target == 0) {
         std::cout << "WARN: bufferView.target is zero" << std::endl;
-        continue;  // Unsupported bufferView.
-      }
-
-      int sparse_accessor = -1;
-      for (size_t a_i = 0; a_i < model.accessors.size(); ++a_i) {
-        const auto &accessor = model.accessors[a_i];
-        if (accessor.bufferView == i) {
-          std::cout << i << " is used by accessor " << a_i << std::endl;
-          if (accessor.sparse.isSparse) {
-            std::cout
-                << "WARN: this bufferView has at least one sparse accessor to "
-                   "it. We are going to load the data as patched by this "
-                   "sparse accessor, not the original data"
-                << std::endl;
-            sparse_accessor = a_i;
-            break;
-          }
-        }
+        continue;  // Unsupported or not directly used bufferView.
       }
 
       const tinygltf::Buffer &buffer = model.buffers[bufferView.buffer];
@@ -308,94 +261,8 @@ static void SetupMeshState(tinygltf::Model &model, GLuint progId) {
       glBindBuffer(bufferView.target, state.vb);
       std::cout << "buffer.size= " << buffer.data.size()
                 << ", byteOffset = " << bufferView.byteOffset << std::endl;
-
-      if (sparse_accessor < 0)
-        glBufferData(bufferView.target, bufferView.byteLength,
-                     &buffer.data.at(0) + bufferView.byteOffset,
-                     GL_STATIC_DRAW);
-      else {
-        const auto accessor = model.accessors[sparse_accessor];
-        // copy the buffer to a temporary one for sparse patching
-        unsigned char *tmp_buffer = new unsigned char[bufferView.byteLength];
-        memcpy(tmp_buffer, buffer.data.data() + bufferView.byteOffset,
-               bufferView.byteLength);
-
-        const size_t size_of_object_in_buffer =
-            ComponentTypeByteSize(accessor.componentType);
-        const size_t size_of_sparse_indices =
-            ComponentTypeByteSize(accessor.sparse.indices.componentType);
-
-        const auto &indices_buffer_view =
-            model.bufferViews[accessor.sparse.indices.bufferView];
-        const auto &indices_buffer = model.buffers[indices_buffer_view.buffer];
-
-        const auto &values_buffer_view =
-            model.bufferViews[accessor.sparse.values.bufferView];
-        const auto &values_buffer = model.buffers[values_buffer_view.buffer];
-
-        for (size_t sparse_index = 0; sparse_index < accessor.sparse.count;
-             ++sparse_index) {
-          int index = 0;
-          // std::cout << "accessor.sparse.indices.componentType = " <<
-          // accessor.sparse.indices.componentType << std::endl;
-          switch (accessor.sparse.indices.componentType) {
-            case TINYGLTF_COMPONENT_TYPE_BYTE:
-            case TINYGLTF_COMPONENT_TYPE_UNSIGNED_BYTE:
-              index = (int)*(
-                  unsigned char *)(indices_buffer.data.data() +
-                                   indices_buffer_view.byteOffset +
-                                   accessor.sparse.indices.byteOffset +
-                                   (sparse_index * size_of_sparse_indices));
-              break;
-            case TINYGLTF_COMPONENT_TYPE_SHORT:
-            case TINYGLTF_COMPONENT_TYPE_UNSIGNED_SHORT:
-              index = (int)*(
-                  unsigned short *)(indices_buffer.data.data() +
-                                    indices_buffer_view.byteOffset +
-                                    accessor.sparse.indices.byteOffset +
-                                    (sparse_index * size_of_sparse_indices));
-              break;
-            case TINYGLTF_COMPONENT_TYPE_INT:
-            case TINYGLTF_COMPONENT_TYPE_UNSIGNED_INT:
-              index = (int)*(
-                  unsigned int *)(indices_buffer.data.data() +
-                                  indices_buffer_view.byteOffset +
-                                  accessor.sparse.indices.byteOffset +
-                                  (sparse_index * size_of_sparse_indices));
-              break;
-          }
-          std::cout << "updating sparse data at index  : " << index
-                    << std::endl;
-          // index is now the target of the sparse index to patch in
-          const unsigned char *read_from =
-              values_buffer.data.data() +
-              (values_buffer_view.byteOffset +
-               accessor.sparse.values.byteOffset) +
-              (sparse_index * (size_of_object_in_buffer * accessor.type));
-
-          /*
-          std::cout << ((float*)read_from)[0] << "\n";
-          std::cout << ((float*)read_from)[1] << "\n";
-          std::cout << ((float*)read_from)[2] << "\n";
-          */
-
-          unsigned char *write_to =
-              tmp_buffer + index * (size_of_object_in_buffer * accessor.type);
-
-          memcpy(write_to, read_from, size_of_object_in_buffer * accessor.type);
-        }
-
-        // debug:
-        /*for(size_t p = 0; p < bufferView.byteLength/sizeof(float); p++)
-        {
-          float* b = (float*)tmp_buffer;
-          std::cout << "modified_buffer [" << p << "] = " << b[p] << '\n';
-        }*/
-
-        glBufferData(bufferView.target, bufferView.byteLength, tmp_buffer,
-                     GL_STATIC_DRAW);
-        delete[] tmp_buffer;
-      }
+      glBufferData(bufferView.target, bufferView.byteLength,
+                   &buffer.data.at(0) + bufferView.byteOffset, GL_STATIC_DRAW);
       glBindBuffer(bufferView.target, 0);
 
       gBufferState[i] = state;
@@ -403,55 +270,55 @@ static void SetupMeshState(tinygltf::Model &model, GLuint progId) {
   }
 
 #if 0  // TODO(syoyo): Implement
-	// Texture
-	{
-		for (size_t i = 0; i < model.meshes.size(); i++) {
-			const tinygltf::Mesh &mesh = model.meshes[i];
+  // Texture
+  {
+    for (size_t i = 0; i < model.meshes.size(); i++) {
+      const tinygltf::Mesh &mesh = model.meshes[i];
 
-			gMeshState[mesh.name].diffuseTex.resize(mesh.primitives.size());
-			for (size_t primId = 0; primId < mesh.primitives.size(); primId++) {
-				const tinygltf::Primitive &primitive = mesh.primitives[primId];
+      gMeshState[mesh.name].diffuseTex.resize(mesh.primitives.size());
+      for (size_t primId = 0; primId < mesh.primitives.size(); primId++) {
+        const tinygltf::Primitive &primitive = mesh.primitives[primId];
 
-				gMeshState[mesh.name].diffuseTex[primId] = 0;
+        gMeshState[mesh.name].diffuseTex[primId] = 0;
 
-				if (primitive.material < 0) {
-					continue;
-				}
-				tinygltf::Material &mat = model.materials[primitive.material];
-				// printf("material.name = %s\n", mat.name.c_str());
-				if (mat.values.find("diffuse") != mat.values.end()) {
-					std::string diffuseTexName = mat.values["diffuse"].string_value;
-					if (model.textures.find(diffuseTexName) != model.textures.end()) {
-						tinygltf::Texture &tex = model.textures[diffuseTexName];
-						if (scene.images.find(tex.source) != model.images.end()) {
-							tinygltf::Image &image = model.images[tex.source];
-							GLuint texId;
-							glGenTextures(1, &texId);
-							glBindTexture(tex.target, texId);
-							glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-							glTexParameterf(tex.target, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-							glTexParameterf(tex.target, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+        if (primitive.material < 0) {
+          continue;
+        }
+        tinygltf::Material &mat = model.materials[primitive.material];
+        // printf("material.name = %s\n", mat.name.c_str());
+        if (mat.values.find("diffuse") != mat.values.end()) {
+          std::string diffuseTexName = mat.values["diffuse"].string_value;
+          if (model.textures.find(diffuseTexName) != model.textures.end()) {
+            tinygltf::Texture &tex = model.textures[diffuseTexName];
+            if (scene.images.find(tex.source) != model.images.end()) {
+              tinygltf::Image &image = model.images[tex.source];
+              GLuint texId;
+              glGenTextures(1, &texId);
+              glBindTexture(tex.target, texId);
+              glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+              glTexParameterf(tex.target, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+              glTexParameterf(tex.target, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 
-							// Ignore Texture.fomat.
-							GLenum format = GL_RGBA;
-							if (image.component == 3) {
-								format = GL_RGB;
-							}
-							glTexImage2D(tex.target, 0, tex.internalFormat, image.width,
-									image.height, 0, format, tex.type,
-									&image.image.at(0));
+              // Ignore Texture.fomat.
+              GLenum format = GL_RGBA;
+              if (image.component == 3) {
+                format = GL_RGB;
+              }
+              glTexImage2D(tex.target, 0, tex.internalFormat, image.width,
+                           image.height, 0, format, tex.type,
+                           &image.image.at(0));
 
-							CheckErrors("texImage2D");
-							glBindTexture(tex.target, 0);
+              CheckErrors("texImage2D");
+              glBindTexture(tex.target, 0);
 
-							printf("TexId = %d\n", texId);
-							gMeshState[mesh.name].diffuseTex[primId] = texId;
-						}
-					}
-				}
-			}
-		}
-	}
+              printf("TexId = %d\n", texId);
+              gMeshState[mesh.name].diffuseTex[primId] = texId;
+            }
+          }
+        }
+      }
+    }
+  }
 #endif
 
   glUseProgram(progId);
@@ -472,164 +339,164 @@ static void SetupMeshState(tinygltf::Model &model, GLuint progId) {
 #if 0  // TODO(syoyo): Implement
 // Setup curves geometry extension
 static void SetupCurvesState(tinygltf::Scene &scene, GLuint progId) {
-	// Find curves primitive.
-	{
-		std::map<std::string, tinygltf::Mesh>::const_iterator it(
-				scene.meshes.begin());
-		std::map<std::string, tinygltf::Mesh>::const_iterator itEnd(
-				scene.meshes.end());
+  // Find curves primitive.
+  {
+    std::map<std::string, tinygltf::Mesh>::const_iterator it(
+        scene.meshes.begin());
+    std::map<std::string, tinygltf::Mesh>::const_iterator itEnd(
+        scene.meshes.end());
 
-		for (; it != itEnd; it++) {
-			const tinygltf::Mesh &mesh = it->second;
+    for (; it != itEnd; it++) {
+      const tinygltf::Mesh &mesh = it->second;
 
-			// Currently we only support one primitive per mesh.
-			if (mesh.primitives.size() > 1) {
-				continue;
-			}
+      // Currently we only support one primitive per mesh.
+      if (mesh.primitives.size() > 1) {
+        continue;
+      }
 
-			for (size_t primId = 0; primId < mesh.primitives.size(); primId++) {
-				const tinygltf::Primitive &primitive = mesh.primitives[primId];
+      for (size_t primId = 0; primId < mesh.primitives.size(); primId++) {
+        const tinygltf::Primitive &primitive = mesh.primitives[primId];
 
-				gMeshState[mesh.name].diffuseTex[primId] = 0;
+        gMeshState[mesh.name].diffuseTex[primId] = 0;
 
-				if (primitive.material.empty()) {
-					continue;
-				}
+        if (primitive.material.empty()) {
+          continue;
+        }
 
-				bool has_curves = false;
-				if (primitive.extras.IsObject()) {
-					if (primitive.extras.Has("ext_mode")) {
-						const tinygltf::Value::Object &o =
-							primitive.extras.Get<tinygltf::Value::Object>();
-						const tinygltf::Value &ext_mode = o.find("ext_mode")->second;
+        bool has_curves = false;
+        if (primitive.extras.IsObject()) {
+          if (primitive.extras.Has("ext_mode")) {
+            const tinygltf::Value::Object &o =
+                primitive.extras.Get<tinygltf::Value::Object>();
+            const tinygltf::Value &ext_mode = o.find("ext_mode")->second;
 
-						if (ext_mode.IsString()) {
-							const std::string &str = ext_mode.Get<std::string>();
-							if (str.compare("curves") == 0) {
-								has_curves = true;
-							}
-						}
-					}
-				}
+            if (ext_mode.IsString()) {
+              const std::string &str = ext_mode.Get<std::string>();
+              if (str.compare("curves") == 0) {
+                has_curves = true;
+              }
+            }
+          }
+        }
 
-				if (!has_curves) {
-					continue;
-				}
+        if (!has_curves) {
+          continue;
+        }
 
-				// Construct curves buffer
-				const tinygltf::Accessor &vtx_accessor =
-					scene.accessors[primitive.attributes.find("POSITION")->second];
-				const tinygltf::Accessor &nverts_accessor =
-					scene.accessors[primitive.attributes.find("NVERTS")->second];
-				const tinygltf::BufferView &vtx_bufferView =
-					scene.bufferViews[vtx_accessor.bufferView];
-				const tinygltf::BufferView &nverts_bufferView =
-					scene.bufferViews[nverts_accessor.bufferView];
-				const tinygltf::Buffer &vtx_buffer =
-					scene.buffers[vtx_bufferView.buffer];
-				const tinygltf::Buffer &nverts_buffer =
-					scene.buffers[nverts_bufferView.buffer];
+        // Construct curves buffer
+        const tinygltf::Accessor &vtx_accessor =
+            scene.accessors[primitive.attributes.find("POSITION")->second];
+        const tinygltf::Accessor &nverts_accessor =
+            scene.accessors[primitive.attributes.find("NVERTS")->second];
+        const tinygltf::BufferView &vtx_bufferView =
+            scene.bufferViews[vtx_accessor.bufferView];
+        const tinygltf::BufferView &nverts_bufferView =
+            scene.bufferViews[nverts_accessor.bufferView];
+        const tinygltf::Buffer &vtx_buffer =
+            scene.buffers[vtx_bufferView.buffer];
+        const tinygltf::Buffer &nverts_buffer =
+            scene.buffers[nverts_bufferView.buffer];
 
-				// std::cout << "vtx_bufferView = " << vtx_accessor.bufferView <<
-				// std::endl;
-				// std::cout << "nverts_bufferView = " << nverts_accessor.bufferView <<
-				// std::endl;
-				// std::cout << "vtx_buffer.size = " << vtx_buffer.data.size() <<
-				// std::endl;
-				// std::cout << "nverts_buffer.size = " << nverts_buffer.data.size() <<
-				// std::endl;
+        // std::cout << "vtx_bufferView = " << vtx_accessor.bufferView <<
+        // std::endl;
+        // std::cout << "nverts_bufferView = " << nverts_accessor.bufferView <<
+        // std::endl;
+        // std::cout << "vtx_buffer.size = " << vtx_buffer.data.size() <<
+        // std::endl;
+        // std::cout << "nverts_buffer.size = " << nverts_buffer.data.size() <<
+        // std::endl;
 
-				const int *nverts =
-					reinterpret_cast<const int *>(nverts_buffer.data.data());
-				const float *vtx =
-					reinterpret_cast<const float *>(vtx_buffer.data.data());
+        const int *nverts =
+            reinterpret_cast<const int *>(nverts_buffer.data.data());
+        const float *vtx =
+            reinterpret_cast<const float *>(vtx_buffer.data.data());
 
-				// Convert to GL_LINES data.
-				std::vector<float> line_pts;
-				size_t vtx_offset = 0;
-				for (int k = 0; k < static_cast<int>(nverts_accessor.count); k++) {
-					for (int n = 0; n < nverts[k] - 1; n++) {
+        // Convert to GL_LINES data.
+        std::vector<float> line_pts;
+        size_t vtx_offset = 0;
+        for (int k = 0; k < static_cast<int>(nverts_accessor.count); k++) {
+          for (int n = 0; n < nverts[k] - 1; n++) {
 
-						line_pts.push_back(vtx[3 * (vtx_offset + n) + 0]);
-						line_pts.push_back(vtx[3 * (vtx_offset + n) + 1]);
-						line_pts.push_back(vtx[3 * (vtx_offset + n) + 2]);
+            line_pts.push_back(vtx[3 * (vtx_offset + n) + 0]);
+            line_pts.push_back(vtx[3 * (vtx_offset + n) + 1]);
+            line_pts.push_back(vtx[3 * (vtx_offset + n) + 2]);
 
-						line_pts.push_back(vtx[3 * (vtx_offset + n + 1) + 0]);
-						line_pts.push_back(vtx[3 * (vtx_offset + n + 1) + 1]);
-						line_pts.push_back(vtx[3 * (vtx_offset + n + 1) + 2]);
+            line_pts.push_back(vtx[3 * (vtx_offset + n + 1) + 0]);
+            line_pts.push_back(vtx[3 * (vtx_offset + n + 1) + 1]);
+            line_pts.push_back(vtx[3 * (vtx_offset + n + 1) + 2]);
 
-						// std::cout << "p0 " << vtx[3 * (vtx_offset + n) + 0] << ", "
-						//                  << vtx[3 * (vtx_offset + n) + 1] << ", "
-						//                  << vtx[3 * (vtx_offset + n) + 2] << std::endl;
+            // std::cout << "p0 " << vtx[3 * (vtx_offset + n) + 0] << ", "
+            //                  << vtx[3 * (vtx_offset + n) + 1] << ", "
+            //                  << vtx[3 * (vtx_offset + n) + 2] << std::endl;
 
-						// std::cout << "p1 " << vtx[3 * (vtx_offset + n+1) + 0] << ", "
-						//                  << vtx[3 * (vtx_offset + n+1) + 1] << ", "
-						//                  << vtx[3 * (vtx_offset + n+1) + 2] << std::endl;
-					}
+            // std::cout << "p1 " << vtx[3 * (vtx_offset + n+1) + 0] << ", "
+            //                  << vtx[3 * (vtx_offset + n+1) + 1] << ", "
+            //                  << vtx[3 * (vtx_offset + n+1) + 2] << std::endl;
+          }
 
-					vtx_offset += nverts[k];
-				}
+          vtx_offset += nverts[k];
+        }
 
-				GLCurvesState state;
-				glGenBuffers(1, &state.vb);
-				glBindBuffer(GL_ARRAY_BUFFER, state.vb);
-				glBufferData(GL_ARRAY_BUFFER, line_pts.size() * sizeof(float),
-						line_pts.data(), GL_STATIC_DRAW);
-				glBindBuffer(GL_ARRAY_BUFFER, 0);
+        GLCurvesState state;
+        glGenBuffers(1, &state.vb);
+        glBindBuffer(GL_ARRAY_BUFFER, state.vb);
+        glBufferData(GL_ARRAY_BUFFER, line_pts.size() * sizeof(float),
+                     line_pts.data(), GL_STATIC_DRAW);
+        glBindBuffer(GL_ARRAY_BUFFER, 0);
 
-				state.count = line_pts.size() / 3;
-				gCurvesMesh[mesh.name] = state;
+        state.count = line_pts.size() / 3;
+        gCurvesMesh[mesh.name] = state;
 
-				// Material
-				tinygltf::Material &mat = scene.materials[primitive.material];
-				// printf("material.name = %s\n", mat.name.c_str());
-				if (mat.values.find("diffuse") != mat.values.end()) {
-					std::string diffuseTexName = mat.values["diffuse"].string_value;
-					if (scene.textures.find(diffuseTexName) != scene.textures.end()) {
-						tinygltf::Texture &tex = scene.textures[diffuseTexName];
-						if (scene.images.find(tex.source) != scene.images.end()) {
-							tinygltf::Image &image = scene.images[tex.source];
-							GLuint texId;
-							glGenTextures(1, &texId);
-							glBindTexture(tex.target, texId);
-							glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-							glTexParameterf(tex.target, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-							glTexParameterf(tex.target, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+        // Material
+        tinygltf::Material &mat = scene.materials[primitive.material];
+        // printf("material.name = %s\n", mat.name.c_str());
+        if (mat.values.find("diffuse") != mat.values.end()) {
+          std::string diffuseTexName = mat.values["diffuse"].string_value;
+          if (scene.textures.find(diffuseTexName) != scene.textures.end()) {
+            tinygltf::Texture &tex = scene.textures[diffuseTexName];
+            if (scene.images.find(tex.source) != scene.images.end()) {
+              tinygltf::Image &image = scene.images[tex.source];
+              GLuint texId;
+              glGenTextures(1, &texId);
+              glBindTexture(tex.target, texId);
+              glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+              glTexParameterf(tex.target, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+              glTexParameterf(tex.target, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 
-							// Ignore Texture.fomat.
-							GLenum format = GL_RGBA;
-							if (image.component == 3) {
-								format = GL_RGB;
-							}
-							glTexImage2D(tex.target, 0, tex.internalFormat, image.width,
-									image.height, 0, format, tex.type,
-									&image.image.at(0));
+              // Ignore Texture.fomat.
+              GLenum format = GL_RGBA;
+              if (image.component == 3) {
+                format = GL_RGB;
+              }
+              glTexImage2D(tex.target, 0, tex.internalFormat, image.width,
+                           image.height, 0, format, tex.type,
+                           &image.image.at(0));
 
-							CheckErrors("texImage2D");
-							glBindTexture(tex.target, 0);
+              CheckErrors("texImage2D");
+              glBindTexture(tex.target, 0);
 
-							printf("TexId = %d\n", texId);
-							gMeshState[mesh.name].diffuseTex[primId] = texId;
-						}
-					}
-				}
-			}
-		}
-	}
+              printf("TexId = %d\n", texId);
+              gMeshState[mesh.name].diffuseTex[primId] = texId;
+            }
+          }
+        }
+      }
+    }
+  }
 
-	glUseProgram(progId);
-	GLint vtloc = glGetAttribLocation(progId, "in_vertex");
-	GLint nrmloc = glGetAttribLocation(progId, "in_normal");
-	GLint uvloc = glGetAttribLocation(progId, "in_texcoord");
+  glUseProgram(progId);
+  GLint vtloc = glGetAttribLocation(progId, "in_vertex");
+  GLint nrmloc = glGetAttribLocation(progId, "in_normal");
+  GLint uvloc = glGetAttribLocation(progId, "in_texcoord");
 
-	GLint diffuseTexLoc = glGetUniformLocation(progId, "diffuseTex");
-	GLint isCurvesLoc = glGetUniformLocation(progId, "uIsCurves");
+  GLint diffuseTexLoc = glGetUniformLocation(progId, "diffuseTex");
+  GLint isCurvesLoc = glGetUniformLocation(progId, "uIsCurves");
 
-	gGLProgramState.attribs["POSITION"] = vtloc;
-	gGLProgramState.attribs["NORMAL"] = nrmloc;
-	gGLProgramState.attribs["TEXCOORD_0"] = uvloc;
-	gGLProgramState.uniforms["diffuseTex"] = diffuseTexLoc;
-	gGLProgramState.uniforms["uIsCurves"] = isCurvesLoc;
+  gGLProgramState.attribs["POSITION"] = vtloc;
+  gGLProgramState.attribs["NORMAL"] = nrmloc;
+  gGLProgramState.attribs["TEXCOORD_0"] = uvloc;
+  gGLProgramState.uniforms["diffuseTex"] = diffuseTexLoc;
+  gGLProgramState.uniforms["uIsCurves"] = isCurvesLoc;
 };
 #endif
 
@@ -662,6 +529,13 @@ static void DrawMesh(tinygltf::Model &model, const tinygltf::Mesh &mesh) {
     for (; it != itEnd; it++) {
       assert(it->second >= 0);
       const tinygltf::Accessor &accessor = model.accessors[it->second];
+      const tinygltf::BufferView &bufferView = model.bufferViews[accessor.bufferView];
+
+      if (bufferView.target == 0) {
+        // Unsupported or not directly used buffer
+        continue;
+      }
+
       glBindBuffer(GL_ARRAY_BUFFER, gBufferState[accessor.bufferView].vb);
       CheckErrors("bind buffer");
       int size = 1;
@@ -682,13 +556,12 @@ static void DrawMesh(tinygltf::Model &model, const tinygltf::Mesh &mesh) {
           (it->first.compare("TEXCOORD_0") == 0)) {
         if (gGLProgramState.attribs[it->first] >= 0) {
           // Compute byteStride from Accessor + BufferView combination.
-          int byteStride =
-              accessor.ByteStride(model.bufferViews[accessor.bufferView]);
+          int byteStride = accessor.ByteStride(model.bufferViews[accessor.bufferView]);
           assert(byteStride != -1);
           glVertexAttribPointer(gGLProgramState.attribs[it->first], size,
-                                accessor.componentType,
-                                accessor.normalized ? GL_TRUE : GL_FALSE,
-                                byteStride, BUFFER_OFFSET(accessor.byteOffset));
+                                accessor.componentType, accessor.normalized ? GL_TRUE : GL_FALSE,
+                                byteStride,
+                                BUFFER_OFFSET(accessor.byteOffset));
           CheckErrors("vertex attrib pointer");
           glEnableVertexAttribArray(gGLProgramState.attribs[it->first]);
           CheckErrors("enable vertex attrib array");
@@ -742,60 +615,34 @@ static void DrawMesh(tinygltf::Model &model, const tinygltf::Mesh &mesh) {
 
 #if 0  // TODO(syoyo): Implement
 static void DrawCurves(tinygltf::Scene &scene, const tinygltf::Mesh &mesh) {
-	(void)scene;
+  (void)scene;
 
-	if (gCurvesMesh.find(mesh.name) == gCurvesMesh.end()) {
-		return;
-	}
-
-	if (gGLProgramState.uniforms["isCurvesLoc"] >= 0) {
-		glUniform1i(gGLProgramState.uniforms["isCurvesLoc"], 1);
-	}
-
-	GLCurvesState &state = gCurvesMesh[mesh.name];
-
-	if (gGLProgramState.attribs["POSITION"] >= 0) {
-		glBindBuffer(GL_ARRAY_BUFFER, state.vb);
-		glVertexAttribPointer(gGLProgramState.attribs["POSITION"], 3, GL_FLOAT,
-				GL_FALSE, /* stride */ 0, BUFFER_OFFSET(0));
-		CheckErrors("curve: vertex attrib pointer");
-		glEnableVertexAttribArray(gGLProgramState.attribs["POSITION"]);
-		CheckErrors("curve: enable vertex attrib array");
-	}
-
-	glDrawArrays(GL_LINES, 0, state.count);
-
-	if (gGLProgramState.attribs["POSITION"] >= 0) {
-		glDisableVertexAttribArray(gGLProgramState.attribs["POSITION"]);
-	}
-}
-#endif
-
-static void QuatToAngleAxis(const std::vector<double> quaternion,
-			    double &outAngleDegrees,
-			    double *axis) {
-  double qx = quaternion[0];
-  double qy = quaternion[1];
-  double qz = quaternion[2];
-  double qw = quaternion[3];
-  
-  double angleRadians = 2 * acos(qw);
-  if (angleRadians == 0.0) {
-    outAngleDegrees = 0.0;
-    axis[0] = 0.0;
-    axis[1] = 0.0;
-    axis[2] = 1.0;
+  if (gCurvesMesh.find(mesh.name) == gCurvesMesh.end()) {
     return;
   }
 
-  constexpr double pi = 3.14159265358979323846;
+  if (gGLProgramState.uniforms["isCurvesLoc"] >= 0) {
+    glUniform1i(gGLProgramState.uniforms["isCurvesLoc"], 1);
+  }
 
-  double denom = sqrt(1-qw*qw);
-  outAngleDegrees = angleRadians * 180.0 / pi;
-  axis[0] = qx / denom;
-  axis[1] = qy / denom;
-  axis[2] = qz / denom;
+  GLCurvesState &state = gCurvesMesh[mesh.name];
+
+  if (gGLProgramState.attribs["POSITION"] >= 0) {
+    glBindBuffer(GL_ARRAY_BUFFER, state.vb);
+    glVertexAttribPointer(gGLProgramState.attribs["POSITION"], 3, GL_FLOAT,
+                          GL_FALSE, /* stride */ 0, BUFFER_OFFSET(0));
+    CheckErrors("curve: vertex attrib pointer");
+    glEnableVertexAttribArray(gGLProgramState.attribs["POSITION"]);
+    CheckErrors("curve: enable vertex attrib array");
+  }
+
+  glDrawArrays(GL_LINES, 0, state.count);
+
+  if (gGLProgramState.attribs["POSITION"] >= 0) {
+    glDisableVertexAttribArray(gGLProgramState.attribs["POSITION"]);
+  }
 }
+#endif
 
 // Hierarchically draw nodes
 static void DrawNode(tinygltf::Model &model, const tinygltf::Node &node) {
@@ -807,22 +654,18 @@ static void DrawNode(tinygltf::Model &model, const tinygltf::Node &node) {
     glMultMatrixd(node.matrix.data());
   } else {
     // Assume Trans x Rotate x Scale order
+    if (node.scale.size() == 3) {
+      glScaled(node.scale[0], node.scale[1], node.scale[2]);
+    }
+
+    if (node.rotation.size() == 4) {
+      glRotated(node.rotation[0], node.rotation[1], node.rotation[2],
+                node.rotation[3]);
+    }
+
     if (node.translation.size() == 3) {
       glTranslated(node.translation[0], node.translation[1],
                    node.translation[2]);
-    }    
-
-    if (node.rotation.size() == 4) {
-      double angleDegrees;
-      double axis[3];
-
-      QuatToAngleAxis(node.rotation, angleDegrees, axis);
-      
-      glRotated(angleDegrees, axis[0], axis[1], axis[2]);
-    }
-
-    if (node.scale.size() == 3) {
-      glScaled(node.scale[0], node.scale[1], node.scale[2]);
     }
   }
 
@@ -832,35 +675,32 @@ static void DrawNode(tinygltf::Model &model, const tinygltf::Node &node) {
   // std::cout << it->first << std::endl;
   // FIXME(syoyo): Refactor.
   // DrawCurves(scene, it->second);
-  if (node.mesh > -1) {
-    assert(node.mesh < model.meshes.size());
+
+  if ((node.mesh >= 0) && (node.mesh < int(model.meshes.size()))) {
     DrawMesh(model, model.meshes[node.mesh]);
   }
 
   // Draw child nodes.
   for (size_t i = 0; i < node.children.size(); i++) {
-    assert(node.children[i] < model.nodes.size());
     DrawNode(model, model.nodes[node.children[i]]);
   }
 
   glPopMatrix();
 }
 
-static void DrawModel(tinygltf::Model &model) {
+static void DrawModel(tinygltf::Model &model, size_t scene_idx) {
 #if 0
-	std::map<std::string, tinygltf::Mesh>::const_iterator it(scene.meshes.begin());
-	std::map<std::string, tinygltf::Mesh>::const_iterator itEnd(scene.meshes.end());
+  std::map<std::string, tinygltf::Mesh>::const_iterator it(scene.meshes.begin());
+  std::map<std::string, tinygltf::Mesh>::const_iterator itEnd(scene.meshes.end());
 
-	for (; it != itEnd; it++) {
-		DrawMesh(scene, it->second);
-		DrawCurves(scene, it->second);
-	}
+  for (; it != itEnd; it++) {
+    DrawMesh(scene, it->second);
+    DrawCurves(scene, it->second);
+  }
 #else
-  // If the glTF asset has at least one scene, and doesn't define a default one
-  // just show the first one we can find
-  assert(model.scenes.size() > 0);
-  int scene_to_display = model.defaultScene > -1 ? model.defaultScene : 0;
-  const tinygltf::Scene &scene = model.scenes[scene_to_display];
+
+  assert(scene_idx < model.scenes.size());
+  const tinygltf::Scene &scene = model.scenes[scene_idx];
   for (size_t i = 0; i < scene.nodes.size(); i++) {
     DrawNode(model, model.nodes[scene.nodes[i]]);
   }
@@ -891,8 +731,8 @@ static void PrintNodes(const tinygltf::Scene &scene) {
 
 int main(int argc, char **argv) {
   if (argc < 2) {
-    std::cout << "glview input.gltf <scale>" << std::endl;
-    std::cout << "defaulting to example cube model" << std::endl;
+    std::cout << "glview input.gltf <scale>\n" << std::endl;
+    return 0;
   }
 
   float scale = 1.0f;
@@ -904,23 +744,13 @@ int main(int argc, char **argv) {
   tinygltf::TinyGLTF loader;
   std::string err;
   std::string warn;
-
-#ifdef _WIN32
-#ifdef _DEBUG
-  std::string input_filename(argv[1] ? argv[1]
-                                     : "../../../models/Cube/Cube.gltf");
-#endif
-#else
-  std::string input_filename(argv[1] ? argv[1] : "../../models/Cube/Cube.gltf");
-#endif
-
+  std::string input_filename(argv[1]);
   std::string ext = GetFilePathExtension(input_filename);
 
   bool ret = false;
   if (ext.compare("glb") == 0) {
     // assume binary glTF.
-    ret =
-        loader.LoadBinaryFromFile(&model, &err, &warn, input_filename.c_str());
+    ret = loader.LoadBinaryFromFile(&model, &err, &warn, input_filename.c_str());
   } else {
     // assume ascii glTF.
     ret = loader.LoadASCIIFromFile(&model, &err, &warn, input_filename.c_str());
@@ -940,20 +770,28 @@ int main(int argc, char **argv) {
 
   Init();
 
+  if (model.scenes.empty()) {
+    std::cerr << "glTF model does not have scenes" << std::endl;
+    return EXIT_FAILURE;
+  }
+
   // DBG
-  PrintNodes(model.scenes[model.defaultScene > -1 ? model.defaultScene : 0]);
+  size_t scene_idx = size_t(model.defaultScene);
+  if (model.defaultScene == -1) {
+    scene_idx = 0;
+  }
+
+  PrintNodes(model.scenes[scene_idx]);
 
   if (!glfwInit()) {
     std::cerr << "Failed to initialize GLFW." << std::endl;
     return -1;
   }
 
-  std::stringstream ss;
-  ss << "Simple glTF viewer: " << input_filename;
+  char title[1024];
+  sprintf(title, "Simple glTF viewer: %s", input_filename.c_str());
 
-  std::string title = ss.str();
-
-  window = glfwCreateWindow(width, height, title.c_str(), NULL, NULL);
+  window = glfwCreateWindow(width, height, title, NULL, NULL);
   if (window == NULL) {
     std::cerr << "Failed to open GLFW window. " << std::endl;
     glfwTerminate();
@@ -979,23 +817,12 @@ int main(int argc, char **argv) {
   reshapeFunc(window, width, height);
 
   GLuint vertId = 0, fragId = 0, progId = 0;
-
-#ifdef _WIN32
-#ifdef _DEBUG
-  const char *shader_frag_filename = "../shader.frag";
-  const char *shader_vert_filename = "../shader.vert";
-#endif
-#else
-  const char *shader_frag_filename = "shader.frag";
-  const char *shader_vert_filename = "shader.vert";
-#endif
-
-  if (false == LoadShader(GL_VERTEX_SHADER, vertId, shader_vert_filename)) {
+  if (false == LoadShader(GL_VERTEX_SHADER, vertId, "shader.vert")) {
     return -1;
   }
   CheckErrors("load vert shader");
 
-  if (false == LoadShader(GL_FRAGMENT_SHADER, fragId, shader_frag_filename)) {
+  if (false == LoadShader(GL_FRAGMENT_SHADER, fragId, "shader.frag")) {
     return -1;
   }
   CheckErrors("load frag shader");
@@ -1046,7 +873,7 @@ int main(int argc, char **argv) {
 
     glScalef(scale, scale, scale);
 
-    DrawModel(model);
+    DrawModel(model, scene_idx);
 
     glMatrixMode(GL_PROJECTION);
     glPopMatrix();

examples/glview/glview.sln

@@ -1,31 +0,0 @@
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-Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio 15
-VisualStudioVersion = 15.0.28010.2050
-MinimumVisualStudioVersion = 10.0.40219.1
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "glview", "glview\glview.vcxproj", "{D078BB24-377E-497B-8045-03AF2A0547ED}"
-EndProject
-Global
-	GlobalSection(SolutionConfigurationPlatforms) = preSolution
-		Debug|x64 = Debug|x64
-		Debug|x86 = Debug|x86
-		Release|x64 = Release|x64
-		Release|x86 = Release|x86
-	EndGlobalSection
-	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{D078BB24-377E-497B-8045-03AF2A0547ED}.Debug|x64.ActiveCfg = Debug|x64
-		{D078BB24-377E-497B-8045-03AF2A0547ED}.Debug|x64.Build.0 = Debug|x64
-		{D078BB24-377E-497B-8045-03AF2A0547ED}.Debug|x86.ActiveCfg = Debug|Win32
-		{D078BB24-377E-497B-8045-03AF2A0547ED}.Debug|x86.Build.0 = Debug|Win32
-		{D078BB24-377E-497B-8045-03AF2A0547ED}.Release|x64.ActiveCfg = Release|x64
-		{D078BB24-377E-497B-8045-03AF2A0547ED}.Release|x64.Build.0 = Release|x64
-		{D078BB24-377E-497B-8045-03AF2A0547ED}.Release|x86.ActiveCfg = Release|Win32
-		{D078BB24-377E-497B-8045-03AF2A0547ED}.Release|x86.Build.0 = Release|Win32
-	EndGlobalSection
-	GlobalSection(SolutionProperties) = preSolution
-		HideSolutionNode = FALSE
-	EndGlobalSection
-	GlobalSection(ExtensibilityGlobals) = postSolution
-		SolutionGuid = {DB7C2F91-06C9-4BD8-95BF-04814E0C62DA}
-	EndGlobalSection
-EndGlobal

examples/glview/glview/glview.vcxproj

@@ -1,152 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <ItemGroup Label="ProjectConfigurations">
-    <ProjectConfiguration Include="Debug|Win32">
-      <Configuration>Debug</Configuration>
-      <Platform>Win32</Platform>
-    </ProjectConfiguration>
-    <ProjectConfiguration Include="Release|Win32">
-      <Configuration>Release</Configuration>
-      <Platform>Win32</Platform>
-    </ProjectConfiguration>
-    <ProjectConfiguration Include="Debug|x64">
-      <Configuration>Debug</Configuration>
-      <Platform>x64</Platform>
-    </ProjectConfiguration>
-    <ProjectConfiguration Include="Release|x64">
-      <Configuration>Release</Configuration>
-      <Platform>x64</Platform>
-    </ProjectConfiguration>
-  </ItemGroup>
-  <PropertyGroup Label="Globals">
-    <VCProjectVersion>15.0</VCProjectVersion>
-    <ProjectGuid>{D078BB24-377E-497B-8045-03AF2A0547ED}</ProjectGuid>
-    <RootNamespace>glview</RootNamespace>
-    <WindowsTargetPlatformVersion>10.0.17134.0</WindowsTargetPlatformVersion>
-  </PropertyGroup>
-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
-    <ConfigurationType>Application</ConfigurationType>
-    <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v141</PlatformToolset>
-    <CharacterSet>MultiByte</CharacterSet>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
-    <ConfigurationType>Application</ConfigurationType>
-    <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v141</PlatformToolset>
-    <WholeProgramOptimization>true</WholeProgramOptimization>
-    <CharacterSet>MultiByte</CharacterSet>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
-    <ConfigurationType>Application</ConfigurationType>
-    <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v141</PlatformToolset>
-    <CharacterSet>MultiByte</CharacterSet>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
-    <ConfigurationType>Application</ConfigurationType>
-    <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v141</PlatformToolset>
-    <WholeProgramOptimization>true</WholeProgramOptimization>
-    <CharacterSet>MultiByte</CharacterSet>
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-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
-  <ImportGroup Label="ExtensionSettings">
-  </ImportGroup>
-  <ImportGroup Label="Shared">
-  </ImportGroup>
-  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
-    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
-  </ImportGroup>
-  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
-    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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-  <PropertyGroup />
-  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
-    <ClCompile>
-      <WarningLevel>Level3</WarningLevel>
-      <Optimization>Disabled</Optimization>
-      <SDLCheck>true</SDLCheck>
-      <ConformanceMode>true</ConformanceMode>
-      <PreprocessorDefinitions>_MBCS;%(PreprocessorDefinitions);_CRT_SECURE_NO_WARNINGS</PreprocessorDefinitions>
-    </ClCompile>
-    <Link>
-      <AdditionalDependencies>kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;%(AdditionalDependencies);opengl32.lib;glu32.lib</AdditionalDependencies>
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-      <SDLCheck>true</SDLCheck>
-      <ConformanceMode>true</ConformanceMode>
-      <PreprocessorDefinitions>_MBCS;%(PreprocessorDefinitions);_CRT_SECURE_NO_WARNINGS</PreprocessorDefinitions>
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-      <Optimization>MaxSpeed</Optimization>
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-      <IntrinsicFunctions>true</IntrinsicFunctions>
-      <SDLCheck>true</SDLCheck>
-      <ConformanceMode>true</ConformanceMode>
-      <PreprocessorDefinitions>_MBCS;%(PreprocessorDefinitions);_CRT_SECURE_NO_WARNINGS</PreprocessorDefinitions>
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-      <OptimizeReferences>true</OptimizeReferences>
-      <AdditionalDependencies>kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;%(AdditionalDependencies);opengl32.lib;glu32.lib</AdditionalDependencies>
-      <SubSystem>Console</SubSystem>
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-    <ClCompile Include="..\..\common\trackball.cc" />
-    <ClCompile Include="..\glview.cc" />
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-  <ItemGroup>
-    <None Include="packages.config" />
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-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
-  <ImportGroup Label="ExtensionTargets">
-    <Import Project="..\packages\nupengl.core.redist.0.1.0.1\build\native\nupengl.core.redist.targets" Condition="Exists('..\packages\nupengl.core.redist.0.1.0.1\build\native\nupengl.core.redist.targets')" />
-    <Import Project="..\packages\nupengl.core.0.1.0.1\build\native\nupengl.core.targets" Condition="Exists('..\packages\nupengl.core.0.1.0.1\build\native\nupengl.core.targets')" />
-  </ImportGroup>
-  <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
-    <PropertyGroup>
-      <ErrorText>This project references NuGet package(s) that are missing on this computer. Use NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
-    </PropertyGroup>
-    <Error Condition="!Exists('..\packages\nupengl.core.redist.0.1.0.1\build\native\nupengl.core.redist.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\nupengl.core.redist.0.1.0.1\build\native\nupengl.core.redist.targets'))" />
-    <Error Condition="!Exists('..\packages\nupengl.core.0.1.0.1\build\native\nupengl.core.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\nupengl.core.0.1.0.1\build\native\nupengl.core.targets'))" />
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examples/glview/glview/glview.vcxproj.filters

@@ -1,28 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <ItemGroup>
-    <Filter Include="Source Files">
-      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
-      <Extensions>cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
-    </Filter>
-    <Filter Include="Header Files">
-      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
-      <Extensions>h;hh;hpp;hxx;hm;inl;inc;ipp;xsd</Extensions>
-    </Filter>
-    <Filter Include="Resource Files">
-      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
-      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
-    </Filter>
-  </ItemGroup>
-  <ItemGroup>
-    <ClCompile Include="..\glview.cc">
-      <Filter>Source Files</Filter>
-    </ClCompile>
-    <ClCompile Include="..\..\common\trackball.cc">
-      <Filter>Source Files</Filter>
-    </ClCompile>
-  </ItemGroup>
-  <ItemGroup>
-    <None Include="packages.config" />
-  </ItemGroup>
-</Project>

examples/glview/glview/glview.vcxproj.user

@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <PropertyGroup />
-</Project>

examples/glview/glview/packages.config

@@ -1,5 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<packages>
-  <package id="nupengl.core" version="0.1.0.1" targetFramework="native" />
-  <package id="nupengl.core.redist" version="0.1.0.1" targetFramework="native" />
-</packages>

examples/glview/premake5.lua

@@ -1,19 +1,34 @@
+newoption {
+   trigger = "asan",
+   description = "Enable Address Sanitizer(gcc5+ ang clang only)"
+}
+
 solution "glview"
    -- location ( "build" )
    configurations { "Debug", "Release" }
    platforms {"native", "x64", "x32"}
-   
+
    project "glview"
 
+      -- Use clang for better asan expericen
+      if _OPTIONS["asan"] then
+         toolset "clang"
+      end
+
       kind "ConsoleApp"
       language "C++"
 	  cppdialect "C++11"
-      files { "glview.cc", "../common/trackball.cc" }
+      files { "glview.cc", "trackball.cc" }
       includedirs { "./" }
       includedirs { "../../" }
-      includedirs { "../common/" }
 
       configuration { "linux" }
+
+         if _OPTIONS["asan"] then
+            buildoptions { "-fsanitize=address,undefined" }
+            linkoptions { "-fsanitize=address,undefined" }
+         end
+
          linkoptions { "`pkg-config --libs glfw3`" }
          links { "GL", "GLU", "m", "GLEW", "X11", "Xrandr", "Xinerama", "Xi", "Xxf86vm", "Xcursor", "dl" }
 

examples/glview/trackball.cc

@@ -0,0 +1,292 @@
+/*
+ * (c) Copyright 1993, 1994, Silicon Graphics, Inc.
+ * ALL RIGHTS RESERVED
+ * Permission to use, copy, modify, and distribute this software for
+ * any purpose and without fee is hereby granted, provided that the above
+ * copyright notice appear in all copies and that both the copyright notice
+ * and this permission notice appear in supporting documentation, and that
+ * the name of Silicon Graphics, Inc. not be used in advertising
+ * or publicity pertaining to distribution of the software without specific,
+ * written prior permission.
+ *
+ * THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS"
+ * AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR
+ * FITNESS FOR A PARTICULAR PURPOSE.  IN NO EVENT SHALL SILICON
+ * GRAPHICS, INC.  BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT,
+ * SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY
+ * KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION,
+ * LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF
+ * THIRD PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC.  HAS BEEN
+ * ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE
+ * POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * US Government Users Restricted Rights
+ * Use, duplication, or disclosure by the Government is subject to
+ * restrictions set forth in FAR 52.227.19(c)(2) or subparagraph
+ * (c)(1)(ii) of the Rights in Technical Data and Computer Software
+ * clause at DFARS 252.227-7013 and/or in similar or successor
+ * clauses in the FAR or the DOD or NASA FAR Supplement.
+ * Unpublished-- rights reserved under the copyright laws of the
+ * United States.  Contractor/manufacturer is Silicon Graphics,
+ * Inc., 2011 N.  Shoreline Blvd., Mountain View, CA 94039-7311.
+ *
+ * OpenGL(TM) is a trademark of Silicon Graphics, Inc.
+ */
+/*
+ * Trackball code:
+ *
+ * Implementation of a virtual trackball.
+ * Implemented by Gavin Bell, lots of ideas from Thant Tessman and
+ *   the August '88 issue of Siggraph's "Computer Graphics," pp. 121-129.
+ *
+ * Vector manip code:
+ *
+ * Original code from:
+ * David M. Ciemiewicz, Mark Grossman, Henry Moreton, and Paul Haeberli
+ *
+ * Much mucking with by:
+ * Gavin Bell
+ */
+#include <math.h>
+#include "trackball.h"
+
+/*
+ * This size should really be based on the distance from the center of
+ * rotation to the point on the object underneath the mouse.  That
+ * point would then track the mouse as closely as possible.  This is a
+ * simple example, though, so that is left as an Exercise for the
+ * Programmer.
+ */
+#define TRACKBALLSIZE (0.8)
+
+/*
+ * Local function prototypes (not defined in trackball.h)
+ */
+static float tb_project_to_sphere(float, float, float);
+static void normalize_quat(float[4]);
+
+static void vzero(float *v) {
+  v[0] = 0.0;
+  v[1] = 0.0;
+  v[2] = 0.0;
+}
+
+static void vset(float *v, float x, float y, float z) {
+  v[0] = x;
+  v[1] = y;
+  v[2] = z;
+}
+
+static void vsub(const float *src1, const float *src2, float *dst) {
+  dst[0] = src1[0] - src2[0];
+  dst[1] = src1[1] - src2[1];
+  dst[2] = src1[2] - src2[2];
+}
+
+static void vcopy(const float *v1, float *v2) {
+  int i;
+  for (i = 0; i < 3; i++)
+    v2[i] = v1[i];
+}
+
+static void vcross(const float *v1, const float *v2, float *cross) {
+  float temp[3];
+
+  temp[0] = (v1[1] * v2[2]) - (v1[2] * v2[1]);
+  temp[1] = (v1[2] * v2[0]) - (v1[0] * v2[2]);
+  temp[2] = (v1[0] * v2[1]) - (v1[1] * v2[0]);
+  vcopy(temp, cross);
+}
+
+static float vlength(const float *v) {
+  return sqrt(v[0] * v[0] + v[1] * v[1] + v[2] * v[2]);
+}
+
+static void vscale(float *v, float div) {
+  v[0] *= div;
+  v[1] *= div;
+  v[2] *= div;
+}
+
+static void vnormal(float *v) { vscale(v, 1.0 / vlength(v)); }
+
+static float vdot(const float *v1, const float *v2) {
+  return v1[0] * v2[0] + v1[1] * v2[1] + v1[2] * v2[2];
+}
+
+static void vadd(const float *src1, const float *src2, float *dst) {
+  dst[0] = src1[0] + src2[0];
+  dst[1] = src1[1] + src2[1];
+  dst[2] = src1[2] + src2[2];
+}
+
+/*
+ * Ok, simulate a track-ball.  Project the points onto the virtual
+ * trackball, then figure out the axis of rotation, which is the cross
+ * product of P1 P2 and O P1 (O is the center of the ball, 0,0,0)
+ * Note:  This is a deformed trackball-- is a trackball in the center,
+ * but is deformed into a hyperbolic sheet of rotation away from the
+ * center.  This particular function was chosen after trying out
+ * several variations.
+ *
+ * It is assumed that the arguments to this routine are in the range
+ * (-1.0 ... 1.0)
+ */
+void trackball(float q[4], float p1x, float p1y, float p2x, float p2y) {
+  float a[3]; /* Axis of rotation */
+  float phi;  /* how much to rotate about axis */
+  float p1[3], p2[3], d[3];
+  float t;
+
+  if (p1x == p2x && p1y == p2y) {
+    /* Zero rotation */
+    vzero(q);
+    q[3] = 1.0;
+    return;
+  }
+
+  /*
+   * First, figure out z-coordinates for projection of P1 and P2 to
+   * deformed sphere
+   */
+  vset(p1, p1x, p1y, tb_project_to_sphere(TRACKBALLSIZE, p1x, p1y));
+  vset(p2, p2x, p2y, tb_project_to_sphere(TRACKBALLSIZE, p2x, p2y));
+
+  /*
+   *  Now, we want the cross product of P1 and P2
+   */
+  vcross(p2, p1, a);
+
+  /*
+   *  Figure out how much to rotate around that axis.
+   */
+  vsub(p1, p2, d);
+  t = vlength(d) / (2.0 * TRACKBALLSIZE);
+
+  /*
+   * Avoid problems with out-of-control values...
+   */
+  if (t > 1.0)
+    t = 1.0;
+  if (t < -1.0)
+    t = -1.0;
+  phi = 2.0 * asin(t);
+
+  axis_to_quat(a, phi, q);
+}
+
+/*
+ *  Given an axis and angle, compute quaternion.
+ */
+void axis_to_quat(float a[3], float phi, float q[4]) {
+  vnormal(a);
+  vcopy(a, q);
+  vscale(q, sin(phi / 2.0));
+  q[3] = cos(phi / 2.0);
+}
+
+/*
+ * Project an x,y pair onto a sphere of radius r OR a hyperbolic sheet
+ * if we are away from the center of the sphere.
+ */
+static float tb_project_to_sphere(float r, float x, float y) {
+  float d, t, z;
+
+  d = sqrt(x * x + y * y);
+  if (d < r * 0.70710678118654752440) { /* Inside sphere */
+    z = sqrt(r * r - d * d);
+  } else { /* On hyperbola */
+    t = r / 1.41421356237309504880;
+    z = t * t / d;
+  }
+  return z;
+}
+
+/*
+ * Given two rotations, e1 and e2, expressed as quaternion rotations,
+ * figure out the equivalent single rotation and stuff it into dest.
+ *
+ * This routine also normalizes the result every RENORMCOUNT times it is
+ * called, to keep error from creeping in.
+ *
+ * NOTE: This routine is written so that q1 or q2 may be the same
+ * as dest (or each other).
+ */
+
+#define RENORMCOUNT 97
+
+void add_quats(float q1[4], float q2[4], float dest[4]) {
+  static int count = 0;
+  float t1[4], t2[4], t3[4];
+  float tf[4];
+
+  vcopy(q1, t1);
+  vscale(t1, q2[3]);
+
+  vcopy(q2, t2);
+  vscale(t2, q1[3]);
+
+  vcross(q2, q1, t3);
+  vadd(t1, t2, tf);
+  vadd(t3, tf, tf);
+  tf[3] = q1[3] * q2[3] - vdot(q1, q2);
+
+  dest[0] = tf[0];
+  dest[1] = tf[1];
+  dest[2] = tf[2];
+  dest[3] = tf[3];
+
+  if (++count > RENORMCOUNT) {
+    count = 0;
+    normalize_quat(dest);
+  }
+}
+
+/*
+ * Quaternions always obey:  a^2 + b^2 + c^2 + d^2 = 1.0
+ * If they don't add up to 1.0, dividing by their magnitued will
+ * renormalize them.
+ *
+ * Note: See the following for more information on quaternions:
+ *
+ * - Shoemake, K., Animating rotation with quaternion curves, Computer
+ *   Graphics 19, No 3 (Proc. SIGGRAPH'85), 245-254, 1985.
+ * - Pletinckx, D., Quaternion calculus as a basic tool in computer
+ *   graphics, The Visual Computer 5, 2-13, 1989.
+ */
+static void normalize_quat(float q[4]) {
+  int i;
+  float mag;
+
+  mag = (q[0] * q[0] + q[1] * q[1] + q[2] * q[2] + q[3] * q[3]);
+  for (i = 0; i < 4; i++)
+    q[i] /= mag;
+}
+
+/*
+ * Build a rotation matrix, given a quaternion rotation.
+ *
+ */
+void build_rotmatrix(float m[4][4], const float q[4]) {
+  m[0][0] = 1.0 - 2.0 * (q[1] * q[1] + q[2] * q[2]);
+  m[0][1] = 2.0 * (q[0] * q[1] - q[2] * q[3]);
+  m[0][2] = 2.0 * (q[2] * q[0] + q[1] * q[3]);
+  m[0][3] = 0.0;
+
+  m[1][0] = 2.0 * (q[0] * q[1] + q[2] * q[3]);
+  m[1][1] = 1.0 - 2.0 * (q[2] * q[2] + q[0] * q[0]);
+  m[1][2] = 2.0 * (q[1] * q[2] - q[0] * q[3]);
+  m[1][3] = 0.0;
+
+  m[2][0] = 2.0 * (q[2] * q[0] - q[1] * q[3]);
+  m[2][1] = 2.0 * (q[1] * q[2] + q[0] * q[3]);
+  m[2][2] = 1.0 - 2.0 * (q[1] * q[1] + q[0] * q[0]);
+  m[2][3] = 0.0;
+
+  m[3][0] = 0.0;
+  m[3][1] = 0.0;
+  m[3][2] = 0.0;
+  m[3][3] = 1.0;
+}

examples/glview/trackball.h

@@ -0,0 +1,75 @@
+/*
+ * (c) Copyright 1993, 1994, Silicon Graphics, Inc.
+ * ALL RIGHTS RESERVED
+ * Permission to use, copy, modify, and distribute this software for
+ * any purpose and without fee is hereby granted, provided that the above
+ * copyright notice appear in all copies and that both the copyright notice
+ * and this permission notice appear in supporting documentation, and that
+ * the name of Silicon Graphics, Inc. not be used in advertising
+ * or publicity pertaining to distribution of the software without specific,
+ * written prior permission.
+ *
+ * THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS"
+ * AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR
+ * FITNESS FOR A PARTICULAR PURPOSE.  IN NO EVENT SHALL SILICON
+ * GRAPHICS, INC.  BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT,
+ * SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY
+ * KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION,
+ * LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF
+ * THIRD PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC.  HAS BEEN
+ * ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE
+ * POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * US Government Users Restricted Rights
+ * Use, duplication, or disclosure by the Government is subject to
+ * restrictions set forth in FAR 52.227.19(c)(2) or subparagraph
+ * (c)(1)(ii) of the Rights in Technical Data and Computer Software
+ * clause at DFARS 252.227-7013 and/or in similar or successor
+ * clauses in the FAR or the DOD or NASA FAR Supplement.
+ * Unpublished-- rights reserved under the copyright laws of the
+ * United States.  Contractor/manufacturer is Silicon Graphics,
+ * Inc., 2011 N.  Shoreline Blvd., Mountain View, CA 94039-7311.
+ *
+ * OpenGL(TM) is a trademark of Silicon Graphics, Inc.
+ */
+/*
+ * trackball.h
+ * A virtual trackball implementation
+ * Written by Gavin Bell for Silicon Graphics, November 1988.
+ */
+
+/*
+ * Pass the x and y coordinates of the last and current positions of
+ * the mouse, scaled so they are from (-1.0 ... 1.0).
+ *
+ * The resulting rotation is returned as a quaternion rotation in the
+ * first paramater.
+ */
+void trackball(float q[4], float p1x, float p1y, float p2x, float p2y);
+
+void negate_quat(float *q, float *qn);
+
+/*
+ * Given two quaternions, add them together to get a third quaternion.
+ * Adding quaternions to get a compound rotation is analagous to adding
+ * translations to get a compound translation.  When incrementally
+ * adding rotations, the first argument here should be the new
+ * rotation, the second and third the total rotation (which will be
+ * over-written with the resulting new total rotation).
+ */
+void add_quats(float *q1, float *q2, float *dest);
+
+/*
+ * A useful function, builds a rotation matrix in Matrix based on
+ * given quaternion.
+ */
+void build_rotmatrix(float m[4][4], const float q[4]);
+
+/*
+ * This function computes a quaternion based on an axis (defined by
+ * the given vector) and an angle about which to rotate.  The angle is
+ * expressed in radians.  The result is put into the third argument.
+ */
+void axis_to_quat(float a[3], float phi, float q[4]);

examples/skinning/README.md

@@ -0,0 +1,19 @@
+# Simple glTF skinning sample with CPU skinning implementation.
+
+Example use CPU implementation of skinning for the explanation of how to process skin property in glTF format.
+
+Animation and skinning code is based on SacchaWillems' Vulkan-glTF-PBR: https://github.com/SaschaWillems/Vulkan-glTF-PBR
+
+OpenGL is still used to display renderings.
+
+## Build on Linux and macOS
+
+```
+$ premake5 gmake
+$ make
+$ ./bin/native/Debug/skinning simple-skin.gltf
+```
+
+## Note on asset
+
+`simple-skin.gltf` is grabbed from gltfTutorial https://github.com/KhronosGroup/glTF-Tutorials/blob/master/gltfTutorial/gltfTutorial_019_SimpleSkin.md

examples/skinning/morph-targets.cc

@@ -0,0 +1,22 @@
+#include <vector>
+#include <cstdlib>
+#include <cassert>
+
+void MorthTargets(std::vector<float> &weights,
+  std::vector<std::vector<float>> &targets,
+  std::vector<float> *output)
+{
+  assert(weights.size() > 0);
+  assert(targets.size() > 0);
+  assert(weights.size() == targets.size());
+
+  // Assume all position has same number of vertices;
+
+  // TODO(parallelize)
+  for (size_t v = 0; v < targets[0].size(); v++) { // for each vertex
+    (*output)[v] = 0.0f;  
+    for (size_t i = 0; i < weights.size(); i++) {
+      (*output)[v] += weights[i] * targets[i][v];
+    }
+  }
+}

examples/skinning/premake5.lua

@@ -1,19 +1,34 @@
-solution "basic_viewer"
+newoption {
+   trigger = "asan",
+   description = "Enable Address Sanitizer(gcc5+ ang clang only)"
+}
+
+solution "skinning"
    -- location ( "build" )
    configurations { "Debug", "Release" }
    platforms {"native", "x64", "x32"}
    
-   project "basic_viewer"
+   project "skinning"
+
+      -- Use clang for better asan expericen
+      if _OPTIONS["asan"] then
+         toolset "clang"
+      end
 
       kind "ConsoleApp"
       language "C++"
 	  cppdialect "C++11"
-      files { "main.cpp", "shaders.cpp", "window.cpp" }
+      files { "main.cc", "skinning.cc", "morph-targets.cc", "../common/trackball.cc", "../common/matrix.cc" }
       includedirs { "./" }
       includedirs { "../../" }
-      includedirs { "../common/glm" }
 
       configuration { "linux" }
+
+         if _OPTIONS["asan"] then
+            buildoptions { "-fsanitize=address" }
+            linkoptions { "-fsanitize=address" }
+         end
+
          linkoptions { "`pkg-config --libs glfw3`" }
          links { "GL", "GLU", "m", "GLEW", "X11", "Xrandr", "Xinerama", "Xi", "Xxf86vm", "Xcursor", "dl" }
 

examples/skinning/shader.frag

@@ -0,0 +1,16 @@
+uniform sampler2D diffuseTex;
+uniform int uIsCurve;
+
+varying vec3 normal;
+varying vec2 texcoord;
+
+void main(void)
+{
+    //gl_FragColor = vec4(0.5 * normalize(normal) + 0.5, 1.0);
+    //gl_FragColor = vec4(texcoord, 0.0, 1.0);
+    if (uIsCurve > 0) {
+        gl_FragColor = texture2D(diffuseTex, texcoord);
+    } else {
+        gl_FragColor = vec4(0.5 * normalize(normal) + 0.5, 1.0);
+    }
+}

examples/skinning/shader.vert

@@ -0,0 +1,16 @@
+attribute vec3    in_vertex;
+attribute vec3    in_normal;
+attribute vec2    in_texcoord;
+
+varying vec3      normal;
+varying vec2      texcoord;
+
+void main(void)
+{
+	vec4 p = gl_ModelViewProjectionMatrix * vec4(in_vertex, 1);
+	gl_Position = p;
+	vec4 nn = gl_ModelViewMatrixInverseTranspose * vec4(normalize(in_normal), 0);
+	normal = nn.xyz;
+
+	texcoord = in_texcoord;
+}

examples/skinning/simple-skin.gltf

@@ -0,0 +1,148 @@
+{
+  "scenes" : [ {
+    "nodes" : [ 0 ]
+  } ],
+  
+  "nodes" : [ {
+    "skin" : 0,
+    "mesh" : 0,
+    "children" : [ 1 ]
+  }, {
+    "children" : [ 2 ],
+    "translation" : [ 0.0, 1.0, 0.0 ]
+  }, {
+    "rotation" : [ 0.0, 0.0, 0.0, 1.0 ]
+  } ],
+  
+  "meshes" : [ {
+    "primitives" : [ {
+      "attributes" : {
+        "POSITION" : 1,
+        "JOINTS_0" : 2,
+        "WEIGHTS_0" : 3
+      },
+      "indices" : 0
+    } ]
+  } ],
+
+  "skins" : [ {
+    "inverseBindMatrices" : 4,
+    "joints" : [ 1, 2 ]
+  } ],
+  
+  "animations" : [ {
+    "channels" : [ {
+      "sampler" : 0,
+      "target" : {
+        "node" : 2,
+        "path" : "rotation"
+      }
+    } ],
+    "samplers" : [ {
+      "input" : 5,
+      "interpolation" : "LINEAR",
+      "output" : 6
+    } ]
+  } ],
+  
+  "buffers" : [ {
+    "uri" : "data:application/gltf-buffer;base64,AAABAAMAAAADAAIAAgADAAUAAgAFAAQABAAFAAcABAAHAAYABgAHAAkABgAJAAgAAAAAAAAAAAAAAAAAAACAPwAAAAAAAAAAAAAAAAAAAD8AAAAAAACAPwAAAD8AAAAAAAAAAAAAgD8AAAAAAACAPwAAgD8AAAAAAAAAAAAAwD8AAAAAAACAPwAAwD8AAAAAAAAAAAAAAEAAAAAAAACAPwAAAEAAAAAA",
+    "byteLength" : 168
+  }, {
+    "uri" : "data:application/gltf-buffer;base64,AAABAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAAAAAAAAAAAgD8AAAAAAAAAAAAAAAAAAIA/AAAAAAAAAAAAAAAAAABAPwAAgD4AAAAAAAAAAAAAQD8AAIA+AAAAAAAAAAAAAAA/AAAAPwAAAAAAAAAAAAAAPwAAAD8AAAAAAAAAAAAAgD4AAEA/AAAAAAAAAAAAAIA+AABAPwAAAAAAAAAAAAAAAAAAgD8AAAAAAAAAAAAAAAAAAIA/AAAAAAAAAAA=",
+    "byteLength" : 320
+  }, {
+    "uri" : "data:application/gltf-buffer;base64,AACAPwAAAAAAAAAAAAAAAAAAAAAAAIA/AAAAAAAAAAAAAAAAAAAAAAAAgD8AAAAAAAAAvwAAgL8AAAAAAACAPwAAgD8AAAAAAAAAAAAAAAAAAAAAAACAPwAAAAAAAAAAAAAAAAAAAAAAAIA/AAAAAAAAAL8AAIC/AAAAAAAAgD8=",
+    "byteLength" : 128
+  }, {
+    "uri" : "data:application/gltf-buffer;base64,AAAAAAAAAD8AAIA/AADAPwAAAEAAACBAAABAQAAAYEAAAIBAAACQQAAAoEAAALBAAAAAAAAAAAAAAAAAAACAPwAAAAAAAAAAkxjEPkSLbD8AAAAAAAAAAPT9ND/0/TQ/AAAAAAAAAAD0/TQ/9P00PwAAAAAAAAAAkxjEPkSLbD8AAAAAAAAAAAAAAAAAAIA/AAAAAAAAAAAAAAAAAACAPwAAAAAAAAAAkxjEvkSLbD8AAAAAAAAAAPT9NL/0/TQ/AAAAAAAAAAD0/TS/9P00PwAAAAAAAAAAkxjEvkSLbD8AAAAAAAAAAAAAAAAAAIA/",
+    "byteLength" : 240
+  } ],
+  
+  "bufferViews" : [ {
+    "buffer" : 0,
+    "byteOffset" : 0,
+    "byteLength" : 48,
+    "target" : 34963
+  }, {
+    "buffer" : 0,
+    "byteOffset" : 48,
+    "byteLength" : 120,
+    "target" : 34962
+  }, {
+    "buffer" : 1,
+    "byteOffset" : 0,
+    "byteLength" : 320,
+    "byteStride" : 16
+  }, {
+    "buffer" : 2,
+    "byteOffset" : 0,
+    "byteLength" : 128
+  }, {
+    "buffer" : 3,
+    "byteOffset" : 0,
+    "byteLength" : 240
+  } ],
+
+  "accessors" : [ {
+    "bufferView" : 0,
+    "byteOffset" : 0,
+    "componentType" : 5123,
+    "count" : 24,
+    "type" : "SCALAR",
+    "max" : [ 9 ],
+    "min" : [ 0 ]
+  }, {
+    "bufferView" : 1,
+    "byteOffset" : 0,
+    "componentType" : 5126,
+    "count" : 10,
+    "type" : "VEC3",
+    "max" : [ 1.0, 2.0, 0.0 ],
+    "min" : [ 0.0, 0.0, 0.0 ]
+  }, {
+    "bufferView" : 2,
+    "byteOffset" : 0,
+    "componentType" : 5123,
+    "count" : 10,
+    "type" : "VEC4",
+    "max" : [ 0, 1, 0, 0 ],
+    "min" : [ 0, 1, 0, 0 ]
+  }, {
+    "bufferView" : 2,
+    "byteOffset" : 160,
+    "componentType" : 5126,
+    "count" : 10,
+    "type" : "VEC4",
+    "max" : [ 1.0, 1.0, 0.0, 0.0 ],
+    "min" : [ 0.0, 0.0, 0.0, 0.0 ]
+  }, {
+    "bufferView" : 3,
+    "byteOffset" : 0,
+    "componentType" : 5126,
+    "count" : 2,
+    "type" : "MAT4",
+    "max" : [ 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, -0.5, -1.0, 0.0, 1.0 ],
+    "min" : [ 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, -0.5, -1.0, 0.0, 1.0 ]
+  }, {
+    "bufferView" : 4,
+    "byteOffset" : 0,
+    "componentType" : 5126,
+    "count" : 12,
+    "type" : "SCALAR",
+    "max" : [ 5.5 ],
+    "min" : [ 0.0 ]
+  }, {
+    "bufferView" : 4,
+    "byteOffset" : 48,
+    "componentType" : 5126,
+    "count" : 12,
+    "type" : "VEC4",
+    "max" : [ 0.0, 0.0, 0.707, 1.0 ],
+    "min" : [ 0.0, 0.0, -0.707, 0.707 ]
+  } ],
+  
+  "asset" : {
+    "version" : "2.0"
+  }
+}

examples/skinning/skinning.cc

@@ -0,0 +1,252 @@
+#include "skinning.h"
+
+#include "../common/matrix.h"
+#include "../common/trackball.h"  // for quaternion
+
+#ifdef __clang__
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Weverything"
+#endif
+
+#define HANDMADE_MATH_IMPLEMENTATION
+#include "HandmadeMath.h"
+
+#ifdef __clang__
+#pragma clang diagnostic pop
+#endif
+
+#include <cassert>
+#include <cstring>
+
+namespace example {
+
+struct Node {
+
+  float translation[3] = {0.0f, 0.0f, 0.0f};
+  float scale[4] = {1.0f, 1.0f, 1.0f};
+  float rotation[4] = {0.0f, 0.0f, 0.0f, 1.0f};
+
+
+  void update() {
+  }
+};
+
+static inline vec4 mix(vec4 x, vec4 y, float a) {
+  vec4 v;
+  v.f[0] = (1.0f - a) * x.f[0] + a * y.f[0];
+  v.f[1] = (1.0f - a) * x.f[1] + a * y.f[1];
+  v.f[2] = (1.0f - a) * x.f[2] + a * y.f[2];
+  v.f[3] = (1.0f - a) * x.f[3] + a * y.f[3];
+
+  return v;
+}
+
+void BuildTransofrmMatrix(const float translate[3],
+                          const float rotation[4],  // as quaternion in glTF
+                          const float scale[3], mat4 *transform_matrix) {
+  float T[4][4];
+  T[0][0] = 1.0f;
+  T[0][1] = 0.0f;
+  T[0][2] = 0.0f;
+  T[0][3] = 0.0f;
+
+  T[1][0] = 0.0f;
+  T[1][1] = 1.0f;
+  T[1][2] = 0.0f;
+  T[1][3] = 0.0f;
+
+  T[2][0] = 0.0f;
+  T[2][1] = 0.0f;
+  T[2][2] = 1.0f;
+  T[2][3] = 0.0f;
+
+  T[3][0] = translate[0];
+  T[3][1] = translate[1];
+  T[3][2] = translate[2];
+  T[3][3] = 1.0f;
+
+  float R[4][4];
+
+  build_rotmatrix(R, rotation);
+
+  float S[4][4];
+  S[0][0] = scale[0];
+  S[0][1] = 0.0f;
+  S[0][2] = 0.0f;
+  S[0][3] = 0.0f;
+
+  S[1][0] = 0.0f;
+  S[1][1] = scale[1];
+  S[1][2] = 0.0f;
+  S[1][3] = 0.0f;
+
+  S[2][0] = 0.0f;
+  S[2][1] = 0.0f;
+  S[2][2] = scale[2];
+  S[2][3] = 0.0f;
+
+  S[3][0] = 0.0f;
+  S[3][1] = 0.0f;
+  S[3][2] = 0.0f;
+  S[3][3] = 1.0f;
+
+  float RS[4][4];
+
+  Matrix::Mult(RS, R, S);
+
+  Matrix::Mult(transform_matrix->m, T, RS);
+}
+
+void ComputeJointMatrices(
+    const std::vector<mat4> global_transform_of_nodes,
+    const std::vector<mat4> global_transform_of_joint_nodes,
+    const std::vector<mat4> inverse_bind_matrix_for_joints,
+    std::vector<mat4> *output_joint_matrices) {
+  const size_t n = global_transform_of_nodes.size();
+
+  output_joint_matrices->resize(n);
+
+  for (size_t i = 0; i < n; i++) {
+    mat4 g_inv = global_transform_of_nodes[i];
+    Matrix::Inverse(g_inv.m);
+
+    mat4 g_joint = global_transform_of_joint_nodes[i];
+    mat4 inverse_bind_matrix = inverse_bind_matrix_for_joints[i];
+
+    float a[4][4];  // temp matrix
+    Matrix::Mult(a, g_joint.m, inverse_bind_matrix.m);
+
+    Matrix::Mult((*output_joint_matrices)[i].m, g_inv.m, a);
+  }
+}
+
+void Skining(const std::vector<float> vertices,
+             const std::vector<float> weights, const std::vector<size_t> joints,
+             const size_t num_skinning_weights,
+             const std::vector<mat4> joint_matrices, const float t,
+             std::vector<float> *skinned_vertices) {
+  assert((vertices.size() % 4) == 0);
+  const size_t num_vertices = vertices.size() / 4;
+
+  skinned_vertices->resize(vertices.size());
+
+  // TODO(syoyo): Ensure sum(weights) = 1.0;
+
+  for (size_t v = 0; v < num_vertices; v++) {
+    const float *w_p = weights.data() + v * num_skinning_weights;
+    const size_t *j_p = joints.data() + v * num_skinning_weights;
+
+    mat4 skin_mat;
+    memset(skin_mat.m, 0, sizeof(float) * 4 * 4);
+
+    for (size_t k = 0; k < num_skinning_weights; k++) {
+      const float w = w_p[k];
+      const mat4 &m = joint_matrices[j_p[k]];
+
+      for (size_t j = 0; j < 4; j++) {
+        for (size_t i = 0; i < 4; i++) {
+          skin_mat.m[j][i] += w * m.m[j][i];
+        }
+      }
+    }
+
+    // M = lerp I and skin_mat
+    mat4 M;
+
+    mat4 I;
+    Matrix::Identity(I.m);
+
+    for (size_t j = 0; j < 4; j++) {
+      for (size_t i = 0; i < 4; i++) {
+        M.m[j][i] = I.m[j][i] * t + (1.0f - t) * skin_mat.m[j][i];
+      }
+    }
+
+    float vtx[4];
+    vtx[0] = vertices[4 * v + 0];
+    vtx[1] = vertices[4 * v + 1];
+    vtx[2] = vertices[4 * v + 2];
+    vtx[3] = vertices[4 * v + 3];
+
+    float ret[4];
+    Matrix::MultV4(ret, M.m, vtx);
+  }
+}
+
+void UpdateAnimation(std::vector<Animation> &animations, uint32_t index,
+                     float time, std::vector<Node*> &nodes) {
+  if (index > uint32_t(animations.size() - 1)) {
+    return;
+  }
+
+  const Animation &animation = animations[index];
+
+  bool updated = false;
+  for (auto &channel : animation.channels) {
+    const AnimationSampler &sampler = animation.samplers[channel.samplerIndex];
+    if (sampler.inputs.size() > sampler.outputsVec4.size()) {
+      continue;
+    }
+
+    // TODO(LTE): support interpolation other than LINEAR
+    for (size_t i = 0; i < sampler.inputs.size() - 1; i++) {
+      if ((time >= sampler.inputs[i]) && (time <= sampler.inputs[i + 1])) {
+        float u = std::max(0.0f, time - sampler.inputs[i]) /
+                  (sampler.inputs[i + 1] - sampler.inputs[i]);
+        if (u <= 1.0f) {
+          switch (channel.path) {
+            case AnimationChannel::PathType::TRANSLATION: {
+              example::vec4 trans =
+                  mix(sampler.outputsVec4[i], sampler.outputsVec4[i + 1], u);
+              channel.node->translation[0] = trans.f[0];
+              channel.node->translation[1] = trans.f[1];
+              channel.node->translation[2] = trans.f[2];
+              // drop w
+              break;
+            }
+            case AnimationChannel::PathType::SCALE: {
+              example::vec4 scale =
+                  mix(sampler.outputsVec4[i], sampler.outputsVec4[i + 1], u);
+              channel.node->scale[0] = scale.f[0];
+              channel.node->scale[1] = scale.f[1];
+              channel.node->scale[2] = scale.f[2];
+              break;
+            }
+            case AnimationChannel::PathType::ROTATION: {
+
+              hmm_quaternion q1 = HMM_Quaternion(
+               sampler.outputsVec4[i].f[0],
+               sampler.outputsVec4[i].f[1],
+               sampler.outputsVec4[i].f[2],
+               sampler.outputsVec4[i].f[3]);
+
+              hmm_quaternion q2 = HMM_Quaternion(
+               sampler.outputsVec4[i + 1].f[0],
+               sampler.outputsVec4[i + 1].f[1],
+               sampler.outputsVec4[i + 1].f[2],
+               sampler.outputsVec4[i + 1].f[3]);
+
+              hmm_quaternion q = HMM_NormalizeQuaternion(HMM_Slerp(q1, u, q2));
+
+              channel.node->rotation[0] = q.Elements[0];
+              channel.node->rotation[1] = q.Elements[1];
+              channel.node->rotation[2] = q.Elements[2];
+              channel.node->rotation[3] = q.Elements[3];
+
+              break;
+            }
+          }
+          updated = true;
+        }
+      }
+    }
+  }
+
+  if (updated) {
+    for (auto &node : nodes) {
+      node->update();
+    }
+  }
+}
+
+}  // namespace example

examples/skinning/skinning.h

@@ -0,0 +1,95 @@
+#ifndef EXAMPLE_SKINNING_H_
+#define EXAMPLE_SKINNING_H_
+
+#include <vector>
+#include <cstddef>
+#include <cstdint>
+#include <string>
+#include <limits>
+
+namespace example {
+
+struct mat4 {
+  float m[4][4];
+};
+
+struct vec4 {
+  float f[4];
+};
+
+// glTF node
+struct Node;
+
+
+struct AnimationChannel {
+  enum PathType { TRANSLATION, ROTATION, SCALE };
+  PathType path;
+  Node *node;
+  uint32_t samplerIndex;
+};
+
+struct AnimationSampler {
+  enum InterpolationType { LINEAR, STEP, CUBICSPLINE };
+  InterpolationType interpolation;
+  std::vector<float> inputs;
+  std::vector<example::vec4> outputsVec4;
+};
+
+struct Animation {
+  std::string name;
+  std::vector<AnimationSampler> samplers;
+  std::vector<AnimationChannel> channels;
+  float start = std::numeric_limits<float>::max();
+  float end = std::numeric_limits<float>::min();
+};
+
+///
+/// Utility function to build transformation matrix from translate/rotation/scale
+///
+/// https://github.com/KhronosGroup/glTF-Tutorials/blob/master/gltfTutorial/gltfTutorial_004_ScenesNodes.md
+///
+/// M = T * R * S
+///
+void BuildTransofrmMatrix(
+  const float translate[3],
+  const float rotation[4], // as quaternion in glTF
+  const float scale[3],
+  mat4 *transform_matrix);
+  
+
+///
+/// Compute joint matrices.
+///
+/// jointMatrix(j) =
+///   globalTransformOfNodeThatTheMeshIsAttachedTo^-1 *
+///   globalTransformOfJointNode(j) *
+///   inverseBindMatrixForJoint(j);
+///
+
+void ComputeJointMatrices(
+  const std::vector<mat4> global_transform_of_nodes,
+  const std::vector<mat4> global_transform_of_joint_nodes,
+  const std::vector<mat4> inverse_bind_matrix_for_joints,
+  std::vector<mat4> output_joint_matrices);
+
+
+///
+///
+/// @param[in] vertices Input vertices(# of elements = num_vertices * 4(xyzw))
+/// @param[in] weights Linearized weights(# of elements = num_vertices * num_skinning_weights)
+/// @param[in] weights Linearized weights(# of elements = num_vertices * num_skinning_weights)
+/// @param[in] num_weights Linearized weights(# of elements = num_vertices * 
+/// @param[in] joint_matrices Array of joint matricies.
+/// @param[in] t Interpolator. [0.0, 1.0]
+/// @param[in] skinned_vertices Resulting skinned vertices
+///
+void Skining(const std::vector<float> vertices,
+             const std::vector<float> weights, const std::vector<size_t> joints,
+             const size_t num_skinning_weights,
+             const std::vector<mat4> joint_matrices,
+             const float t,
+             std::vector<float> *skinned_vertices);
+
+}  // namespace example
+
+#endif  // EXAMPLE_SKINNING_H_

examples/validator/CMakeLists.txt

@@ -45,9 +45,3 @@ endif()
 
 # test-zone
 # enable_testing()
-
-install ( TARGETS
-  tinygltf-validator
-  DESTINATION
-  bin
-  )

loader_example.cc

@@ -6,10 +6,7 @@
 #define STB_IMAGE_WRITE_IMPLEMENTATION
 #include "tiny_gltf.h"
 
-#include <algorithm>
-#include <cstdint>
 #include <cstdio>
-#include <cstring>
 #include <fstream>
 #include <iostream>
 
@@ -33,7 +30,8 @@ static std::string PrintMode(int mode) {
   } else if (mode == TINYGLTF_MODE_TRIANGLE_STRIP) {
     return "TRIANGLE_STRIP";
   }
-  return "**UNKNOWN**";
+
+  return "**UNKNOWN**(" + std::to_string(mode) + ")";
 }
 
 static std::string PrintTarget(int target) {
@@ -42,7 +40,7 @@ static std::string PrintTarget(int target) {
   } else if (target == 34963) {
     return "GL_ELEMENT_ARRAY_BUFFER";
   } else {
-    return "**UNKNOWN**";
+    return "**UNKNOWN**(" + std::to_string(target) + ")";
   }
 }
 
@@ -66,7 +64,7 @@ static std::string PrintType(int ty) {
   } else if (ty == TINYGLTF_TYPE_MAT4) {
     return "MAT4";
   }
-  return "**UNKNOWN**";
+  return "**UNKNOWN**(" + std::to_string(ty) + ")";
 }
 
 static std::string PrintComponentType(int ty) {
@@ -88,7 +86,7 @@ static std::string PrintComponentType(int ty) {
     return "DOUBLE";
   }
 
-  return "**UNKNOWN**";
+  return "**UNKNOWN**(" + std::to_string(ty) + ")";
 }
 
 #if 0
@@ -150,7 +148,7 @@ static std::string PrintWrapMode(int mode) {
     return "MIRRORED_REPEAT";
   }
 
-  return "**UNKNOWN**";
+  return "**UNKNOWN**(" + std::to_string(mode) + ")";
 }
 
 static std::string PrintFilterMode(int mode) {
@@ -167,7 +165,7 @@ static std::string PrintFilterMode(int mode) {
   } else if (mode == TINYGLTF_TEXTURE_FILTER_LINEAR_MIPMAP_LINEAR) {
     return "LINEAR_MIPMAP_LINEAR";
   }
-  return "**UNKNOWN**";
+  return "**UNKNOWN**(" + std::to_string(mode) + ")";
 }
 
 static std::string PrintIntArray(const std::vector<int> &arr) {
@@ -178,10 +176,7 @@ static std::string PrintIntArray(const std::vector<int> &arr) {
   std::stringstream ss;
   ss << "[ ";
   for (size_t i = 0; i < arr.size(); i++) {
-    ss << arr[i];
-    if (i != arr.size() - 1) {
-      ss << ", ";
-    }
+    ss << arr[i] << ((i != arr.size() - 1) ? ", " : "");
   }
   ss << " ]";
 
@@ -196,10 +191,7 @@ static std::string PrintFloatArray(const std::vector<double> &arr) {
   std::stringstream ss;
   ss << "[ ";
   for (size_t i = 0; i < arr.size(); i++) {
-    ss << arr[i];
-    if (i != arr.size() - 1) {
-      ss << ", ";
-    }
+    ss << arr[i] << ((i != arr.size() - 1) ? ", " : "");
   }
   ss << " ]";
 
@@ -237,8 +229,7 @@ static std::string PrintParameterMap(const tinygltf::ParameterMap &pmap) {
 #endif
 
 static std::string PrintValue(const std::string &name,
-                              const tinygltf::Value &value, const int indent,
-                              const bool tag = true) {
+                              const tinygltf::Value &value, const int indent, const bool tag = true) {
   std::stringstream ss;
 
   if (value.IsObject()) {
@@ -252,36 +243,36 @@ static std::string PrintValue(const std::string &name,
     if (tag) {
       ss << Indent(indent) << name << " : " << value.Get<std::string>();
     } else {
-      ss << Indent(indent) << value.Get<std::string>() << " ";
+      ss << " " << value.Get<std::string>() << " ";
     }
   } else if (value.IsBool()) {
     if (tag) {
       ss << Indent(indent) << name << " : " << value.Get<bool>();
     } else {
-      ss << Indent(indent) << value.Get<bool>() << " ";
+      ss << " " << value.Get<bool>() << " ";
     }
   } else if (value.IsNumber()) {
     if (tag) {
       ss << Indent(indent) << name << " : " << value.Get<double>();
     } else {
-      ss << Indent(indent) << value.Get<double>() << " ";
+      ss << " " << value.Get<double>() << " ";
     }
   } else if (value.IsInt()) {
     if (tag) {
       ss << Indent(indent) << name << " : " << value.Get<int>();
     } else {
-      ss << Indent(indent) << value.Get<int>() << " ";
+      ss << " " << value.Get<int>() << " ";
     }
   } else if (value.IsArray()) {
-    // TODO(syoyo): Better pretty printing of array item
-    ss << Indent(indent) << name << " [ \n";
+    ss << Indent(indent) << name << " [ ";
     for (size_t i = 0; i < value.Size(); i++) {
-      ss << PrintValue("", value.Get(int(i)), indent + 1, /* tag */ false);
-      if (i != (value.ArrayLen() - 1)) {
-        ss << ", \n";
+      ss << PrintValue("", value.Get(int(i)), indent + 1, /* tag */false);
+      if (i != (value.ArrayLen()-1)) {
+        ss << ", ";
       }
+
     }
-    ss << "\n" << Indent(indent) << "] ";
+    ss << Indent(indent) << "] ";
   }
 
   // @todo { binary }
@@ -325,15 +316,6 @@ static void DumpStringIntMap(const std::map<std::string, int> &m, int indent) {
   }
 }
 
-static void DumpExtensions(const tinygltf::ExtensionMap &extension,
-                           const int indent) {
-  // TODO(syoyo): pritty print Value
-  for (auto &e : extension) {
-    std::cout << Indent(indent) << e.first << std::endl;
-    std::cout << PrintValue("extensions", e.second, indent + 1) << std::endl;
-  }
-}
-
 static void DumpPrimitive(const tinygltf::Primitive &primitive, int indent) {
   std::cout << Indent(indent) << "material : " << primitive.material
             << std::endl;
@@ -345,80 +327,17 @@ static void DumpPrimitive(const tinygltf::Primitive &primitive, int indent) {
             << std::endl;
   DumpStringIntMap(primitive.attributes, indent + 1);
 
-  DumpExtensions(primitive.extensions, indent);
   std::cout << Indent(indent) << "extras :" << std::endl
             << PrintValue("extras", primitive.extras, indent + 1) << std::endl;
-
-  if (!primitive.extensions_json_string.empty()) {
-    std::cout << Indent(indent + 1) << "extensions(JSON string) = "
-              << primitive.extensions_json_string << "\n";
-  }
-
-  if (!primitive.extras_json_string.empty()) {
-    std::cout << Indent(indent + 1)
-              << "extras(JSON string) = " << primitive.extras_json_string
-              << "\n";
-  }
 }
 
-
-static void DumpTextureInfo(const tinygltf::TextureInfo &texinfo,
-                            const int indent) {
-  std::cout << Indent(indent) << "index     : " << texinfo.index << "\n";
-  std::cout << Indent(indent) << "texCoord  : TEXCOORD_" << texinfo.texCoord
-            << "\n";
-  DumpExtensions(texinfo.extensions, indent + 1);
-  std::cout << PrintValue("extras", texinfo.extras, indent + 1) << "\n";
-
-  if (!texinfo.extensions_json_string.empty()) {
-    std::cout << Indent(indent)
-              << "extensions(JSON string) = " << texinfo.extensions_json_string
-              << "\n";
-  }
-
-  if (!texinfo.extras_json_string.empty()) {
-    std::cout << Indent(indent)
-              << "extras(JSON string) = " << texinfo.extras_json_string << "\n";
-  }
-}
-
-static void DumpNormalTextureInfo(const tinygltf::NormalTextureInfo &texinfo,
-                                  const int indent) {
-  std::cout << Indent(indent) << "index     : " << texinfo.index << "\n";
-  std::cout << Indent(indent) << "texCoord  : TEXCOORD_" << texinfo.texCoord
-            << "\n";
-  std::cout << Indent(indent) << "scale     : " << texinfo.scale << "\n";
-  DumpExtensions(texinfo.extensions, indent + 1);
-  std::cout << PrintValue("extras", texinfo.extras, indent + 1) << "\n";
-}
-
-static void DumpOcclusionTextureInfo(
-    const tinygltf::OcclusionTextureInfo &texinfo, const int indent) {
-  std::cout << Indent(indent) << "index     : " << texinfo.index << "\n";
-  std::cout << Indent(indent) << "texCoord  : TEXCOORD_" << texinfo.texCoord
-            << "\n";
-  std::cout << Indent(indent) << "strength  : " << texinfo.strength << "\n";
-  DumpExtensions(texinfo.extensions, indent + 1);
-  std::cout << PrintValue("extras", texinfo.extras, indent + 1) << "\n";
-}
-
-static void DumpPbrMetallicRoughness(const tinygltf::PbrMetallicRoughness &pbr,
-                                     const int indent) {
-  std::cout << Indent(indent)
-            << "baseColorFactor   : " << PrintFloatArray(pbr.baseColorFactor)
-            << "\n";
-  std::cout << Indent(indent) << "baseColorTexture  :\n";
-  DumpTextureInfo(pbr.baseColorTexture, indent + 1);
-
-  std::cout << Indent(indent) << "metallicFactor    : " << pbr.metallicFactor
-            << "\n";
-  std::cout << Indent(indent) << "roughnessFactor   : " << pbr.roughnessFactor
-            << "\n";
-
-  std::cout << Indent(indent) << "metallicRoughnessTexture  :\n";
-  DumpTextureInfo(pbr.metallicRoughnessTexture, indent + 1);
-  DumpExtensions(pbr.extensions, indent + 1);
-  std::cout << PrintValue("extras", pbr.extras, indent + 1) << "\n";
+static void DumpExtensions(const tinygltf::ExtensionMap &extension, const int indent)
+{
+  // TODO(syoyo): pritty print Value
+  for (auto &e : extension) {
+    std::cout << Indent(indent) << e.first << std::endl;
+    std::cout << PrintValue("extensions", e.second, indent+1) << std::endl;
+  }  
 }
 
 static void Dump(const tinygltf::Model &model) {
@@ -491,30 +410,6 @@ static void Dump(const tinygltf::Model &model) {
         }
         std::cout << "]" << std::endl;
       }
-
-      if (accessor.sparse.isSparse) {
-        std::cout << Indent(2) << "sparse:" << std::endl;
-        std::cout << Indent(3) << "count  : " << accessor.sparse.count
-                  << std::endl;
-        std::cout << Indent(3) << "indices: " << std::endl;
-        std::cout << Indent(4)
-                  << "bufferView   : " << accessor.sparse.indices.bufferView
-                  << std::endl;
-        std::cout << Indent(4)
-                  << "byteOffset   : " << accessor.sparse.indices.byteOffset
-                  << std::endl;
-        std::cout << Indent(4) << "componentType: "
-                  << PrintComponentType(accessor.sparse.indices.componentType)
-                  << "(" << accessor.sparse.indices.componentType << ")"
-                  << std::endl;
-        std::cout << Indent(3) << "values : " << std::endl;
-        std::cout << Indent(4)
-                  << "bufferView   : " << accessor.sparse.values.bufferView
-                  << std::endl;
-        std::cout << Indent(4)
-                  << "byteOffset   : " << accessor.sparse.values.byteOffset
-                  << std::endl;
-      }
     }
   }
 
@@ -527,7 +422,7 @@ static void Dump(const tinygltf::Model &model) {
                 << std::endl;
 
       std::cout << Indent(1) << "channels : [ " << std::endl;
-      for (size_t j = 0; j < animation.channels.size(); j++) {
+      for (size_t j = 0; i < animation.channels.size(); i++) {
         std::cout << Indent(2)
                   << "sampler     : " << animation.channels[j].sampler
                   << std::endl;
@@ -573,21 +468,6 @@ static void Dump(const tinygltf::Model &model) {
       std::cout << Indent(2)
                 << "target       : " << PrintTarget(bufferView.target)
                 << std::endl;
-      std::cout << Indent(1) << "-------------------------------------\n";
-
-      DumpExtensions(bufferView.extensions, 1);
-      std::cout << PrintValue("extras", bufferView.extras, 2) << std::endl;
-
-      if (!bufferView.extensions_json_string.empty()) {
-        std::cout << Indent(2) << "extensions(JSON string) = "
-                  << bufferView.extensions_json_string << "\n";
-      }
-
-      if (!bufferView.extras_json_string.empty()) {
-        std::cout << Indent(2)
-                  << "extras(JSON string) = " << bufferView.extras_json_string
-                  << "\n";
-      }
     }
   }
 
@@ -598,21 +478,6 @@ static void Dump(const tinygltf::Model &model) {
       std::cout << Indent(1) << "name         : " << buffer.name << std::endl;
       std::cout << Indent(2) << "byteLength   : " << buffer.data.size()
                 << std::endl;
-      std::cout << Indent(1) << "-------------------------------------\n";
-
-      DumpExtensions(buffer.extensions, 1);
-      std::cout << PrintValue("extras", buffer.extras, 2) << std::endl;
-
-      if (!buffer.extensions_json_string.empty()) {
-        std::cout << Indent(2) << "extensions(JSON string) = "
-                  << buffer.extensions_json_string << "\n";
-      }
-
-      if (!buffer.extras_json_string.empty()) {
-        std::cout << Indent(2)
-                  << "extras(JSON string) = " << buffer.extras_json_string
-                  << "\n";
-      }
     }
   }
 
@@ -621,55 +486,16 @@ static void Dump(const tinygltf::Model &model) {
               << std::endl;
     for (size_t i = 0; i < model.materials.size(); i++) {
       const tinygltf::Material &material = model.materials[i];
-      std::cout << Indent(1) << "name                 : " << material.name
-                << std::endl;
-
-      std::cout << Indent(1) << "alphaMode            : " << material.alphaMode
-                << std::endl;
-      std::cout << Indent(1)
-                << "alphaCutoff          : " << material.alphaCutoff
-                << std::endl;
-      std::cout << Indent(1) << "doubleSided          : "
-                << (material.doubleSided ? "true" : "false") << std::endl;
-      std::cout << Indent(1) << "emissiveFactor       : "
-                << PrintFloatArray(material.emissiveFactor) << std::endl;
-
-      std::cout << Indent(1) << "pbrMetallicRoughness :\n";
-      DumpPbrMetallicRoughness(material.pbrMetallicRoughness, 2);
-
-      std::cout << Indent(1) << "normalTexture        :\n";
-      DumpNormalTextureInfo(material.normalTexture, 2);
-
-      std::cout << Indent(1) << "occlusionTexture     :\n";
-      DumpOcclusionTextureInfo(material.occlusionTexture, 2);
-
-      std::cout << Indent(1) << "emissiveTexture      :\n";
-      DumpTextureInfo(material.emissiveTexture, 2);
-
-      std::cout << Indent(1) << "----  legacy material parameter  ----\n";
+      std::cout << Indent(1) << "name         : " << material.name << std::endl;
       std::cout << Indent(1) << "values(items=" << material.values.size() << ")"
                 << std::endl;
+
       tinygltf::ParameterMap::const_iterator p(material.values.begin());
       tinygltf::ParameterMap::const_iterator pEnd(material.values.end());
       for (; p != pEnd; p++) {
         std::cout << Indent(2) << p->first << ": "
                   << PrintParameterValue(p->second) << std::endl;
       }
-      std::cout << Indent(1) << "-------------------------------------\n";
-
-      DumpExtensions(material.extensions, 1);
-      std::cout << PrintValue("extras", material.extras, 2) << std::endl;
-
-      if (!material.extensions_json_string.empty()) {
-        std::cout << Indent(2) << "extensions(JSON string) = "
-                  << material.extensions_json_string << "\n";
-      }
-
-      if (!material.extras_json_string.empty()) {
-        std::cout << Indent(2)
-                  << "extras(JSON string) = " << material.extras_json_string
-                  << "\n";
-      }
     }
   }
 
@@ -693,18 +519,6 @@ static void Dump(const tinygltf::Model &model) {
       std::cout << Indent(2) << "height    : " << image.height << std::endl;
       std::cout << Indent(2) << "component : " << image.component << std::endl;
       DumpExtensions(image.extensions, 1);
-      std::cout << PrintValue("extras", image.extras, 2) << std::endl;
-
-      if (!image.extensions_json_string.empty()) {
-        std::cout << Indent(2) << "extensions(JSON string) = "
-                  << image.extensions_json_string << "\n";
-      }
-
-      if (!image.extras_json_string.empty()) {
-        std::cout << Indent(2)
-                  << "extras(JSON string) = " << image.extras_json_string
-                  << "\n";
-      }
     }
   }
 
@@ -717,18 +531,6 @@ static void Dump(const tinygltf::Model &model) {
       std::cout << Indent(1) << "source         : " << texture.source
                 << std::endl;
       DumpExtensions(texture.extensions, 1);
-      std::cout << PrintValue("extras", texture.extras, 2) << std::endl;
-
-      if (!texture.extensions_json_string.empty()) {
-        std::cout << Indent(2) << "extensions(JSON string) = "
-                  << texture.extensions_json_string << "\n";
-      }
-
-      if (!texture.extras_json_string.empty()) {
-        std::cout << Indent(2)
-                  << "extras(JSON string) = " << texture.extras_json_string
-                  << "\n";
-      }
     }
   }
 
@@ -750,20 +552,6 @@ static void Dump(const tinygltf::Model &model) {
       std::cout << Indent(2)
                 << "wrapT        : " << PrintWrapMode(sampler.wrapT)
                 << std::endl;
-
-      DumpExtensions(sampler.extensions, 1);
-      std::cout << PrintValue("extras", sampler.extras, 2) << std::endl;
-
-      if (!sampler.extensions_json_string.empty()) {
-        std::cout << Indent(2) << "extensions(JSON string) = "
-                  << sampler.extensions_json_string << "\n";
-      }
-
-      if (!sampler.extras_json_string.empty()) {
-        std::cout << Indent(2)
-                  << "extras(JSON string) = " << sampler.extras_json_string
-                  << "\n";
-      }
     }
   }
 
@@ -796,304 +584,45 @@ static void Dump(const tinygltf::Model &model) {
                   << "znear         : " << camera.orthographic.znear
                   << std::endl;
       }
-
-      std::cout << Indent(1) << "-------------------------------------\n";
-
-      DumpExtensions(camera.extensions, 1);
-      std::cout << PrintValue("extras", camera.extras, 2) << std::endl;
-
-      if (!camera.extensions_json_string.empty()) {
-        std::cout << Indent(2) << "extensions(JSON string) = "
-                  << camera.extensions_json_string << "\n";
-      }
-
-      if (!camera.extras_json_string.empty()) {
-        std::cout << Indent(2)
-                  << "extras(JSON string) = " << camera.extras_json_string
-                  << "\n";
-      }
     }
   }
-
-  {
-    std::cout << "skins(items=" << model.skins.size() << ")" << std::endl;
-    for (size_t i = 0; i < model.skins.size(); i++) {
-      const tinygltf::Skin &skin = model.skins[i];
-      std::cout << Indent(1) << "name         : " << skin.name << std::endl;
-      std::cout << Indent(2)
-                << "inverseBindMatrices   : " << skin.inverseBindMatrices
-                << std::endl;
-      std::cout << Indent(2) << "skeleton              : " << skin.skeleton
-                << std::endl;
-      std::cout << Indent(2)
-                << "joints                : " << PrintIntArray(skin.joints)
-                << std::endl;
-      std::cout << Indent(1) << "-------------------------------------\n";
-
-      DumpExtensions(skin.extensions, 1);
-      std::cout << PrintValue("extras", skin.extras, 2) << std::endl;
-
-      if (!skin.extensions_json_string.empty()) {
-        std::cout << Indent(2)
-                  << "extensions(JSON string) = " << skin.extensions_json_string
-                  << "\n";
-      }
-
-      if (!skin.extras_json_string.empty()) {
-        std::cout << Indent(2)
-                  << "extras(JSON string) = " << skin.extras_json_string
-                  << "\n";
-      }
-    }
-  }
-
+  
   // toplevel extensions
   {
-    std::cout << "extensions(items=" << model.extensions.size() << ")"
-              << std::endl;
+    std::cout << "extensions(items=" << model.extensions.size() << ")" << std::endl;
     DumpExtensions(model.extensions, 1);
   }
 }
 
-/* ===== Digest helpers (used to compare v1 vs v3 parses) ===================== */
-
-static uint64_t fnv64(const unsigned char *data, size_t n) {
-  uint64_t h = 0xcbf29ce484222325ULL;
-  for (size_t i = 0; i < n; ++i) { h ^= data[i]; h *= 0x100000001b3ULL; }
-  return h;
-}
-
-static void d_str(const std::string &s) {
-  putchar('"');
-  for (unsigned char c : s) {
-    if (c == '"' || c == '\\') { putchar('\\'); putchar((char)c); }
-    else if (c < 0x20 || c >= 0x7f) putchar('?');
-    else putchar((char)c);
-  }
-  putchar('"');
-}
-
-static void d_dbl(double v) { printf("%.7g", v); }
-
-static void d_dbl_arr(const double *v, size_t n) {
-  putchar('[');
-  for (size_t i = 0; i < n; ++i) { if (i) putchar(','); d_dbl(v[i]); }
-  putchar(']');
-}
-
-static void d_dbl_vec(const std::vector<double> &v) {
-  d_dbl_arr(v.data(), v.size());
-}
-
-static void PrintDigest(const tinygltf::Model &m) {
-  printf("DIGEST_BEGIN\n");
-
-  printf("asset version=");
-  d_str(m.asset.version);
-  printf(" generator=");
-  d_str(m.asset.generator);
-  printf("\n");
-
-  for (size_t i = 0; i < m.buffers.size(); ++i) {
-    const auto &b = m.buffers[i];
-    uint64_t h = b.data.empty() ? 0 : fnv64(b.data.data(), b.data.size());
-    printf("buffer %zu byte_length=%llu fnv64=0x%016llx\n",
-           i, (unsigned long long)b.data.size(), (unsigned long long)h);
-  }
-  for (size_t i = 0; i < m.bufferViews.size(); ++i) {
-    const auto &bv = m.bufferViews[i];
-    printf("buffer_view %zu buffer=%d byte_offset=%llu byte_length=%llu byte_stride=%u\n",
-           i, bv.buffer, (unsigned long long)bv.byteOffset,
-           (unsigned long long)bv.byteLength, (unsigned)bv.byteStride);
-  }
-  for (size_t i = 0; i < m.accessors.size(); ++i) {
-    const auto &a = m.accessors[i];
-    printf("accessor %zu buffer_view=%d byte_offset=%llu component_type=%d count=%llu type=%d normalized=%d min=",
-           i, a.bufferView, (unsigned long long)a.byteOffset, a.componentType,
-           (unsigned long long)a.count, a.type, a.normalized ? 1 : 0);
-    d_dbl_vec(a.minValues);
-    printf(" max=");
-    d_dbl_vec(a.maxValues);
-    printf(" sparse=%d\n", a.sparse.isSparse ? 1 : 0);
-  }
-  for (size_t i = 0; i < m.meshes.size(); ++i) {
-    const auto &me = m.meshes[i];
-    printf("mesh %zu primitives_count=%zu weights_count=%zu\n",
-           i, me.primitives.size(), me.weights.size());
-    for (size_t j = 0; j < me.primitives.size(); ++j) {
-      const auto &p = me.primitives[j];
-      printf("prim %zu %zu indices=%d material=%d mode=%d attrs=[",
-             i, j, p.indices, p.material, p.mode);
-      // attributes is std::map → already sorted by key
-      bool first = true;
-      for (const auto &kv : p.attributes) {
-        if (!first) putchar(',');
-        printf("%s:%d", kv.first.c_str(), kv.second);
-        first = false;
-      }
-      printf("] targets_count=%zu\n", p.targets.size());
-    }
-  }
-  for (size_t i = 0; i < m.nodes.size(); ++i) {
-    const auto &n = m.nodes[i];
-    double t[3] = {0, 0, 0};
-    double r[4] = {0, 0, 0, 1};
-    double s[3] = {1, 1, 1};
-    double mat[16] = {1,0,0,0, 0,1,0,0, 0,0,1,0, 0,0,0,1};
-    int has_matrix = (n.matrix.size() == 16) ? 1 : 0;
-    if (n.translation.size() == 3) std::copy(n.translation.begin(), n.translation.end(), t);
-    if (n.rotation.size() == 4)    std::copy(n.rotation.begin(),    n.rotation.end(),    r);
-    if (n.scale.size() == 3)       std::copy(n.scale.begin(),       n.scale.end(),       s);
-    if (has_matrix) std::copy(n.matrix.begin(), n.matrix.end(), mat);
-    printf("node %zu mesh=%d skin=%d camera=%d light=%d children_count=%zu has_matrix=%d t=",
-           i, n.mesh, n.skin, n.camera, n.light, n.children.size(), has_matrix);
-    d_dbl_arr(t, 3);
-    printf(" r=");
-    d_dbl_arr(r, 4);
-    printf(" s=");
-    d_dbl_arr(s, 3);
-    printf(" matrix=");
-    d_dbl_arr(mat, 16);
-    printf(" weights_count=%zu\n", n.weights.size());
-  }
-  for (size_t i = 0; i < m.materials.size(); ++i) {
-    const auto &mat = m.materials[i];
-    double ef[3] = {0, 0, 0};
-    double bcf[4] = {1, 1, 1, 1};
-    if (mat.emissiveFactor.size() == 3)
-      std::copy(mat.emissiveFactor.begin(), mat.emissiveFactor.end(), ef);
-    if (mat.pbrMetallicRoughness.baseColorFactor.size() == 4)
-      std::copy(mat.pbrMetallicRoughness.baseColorFactor.begin(),
-                mat.pbrMetallicRoughness.baseColorFactor.end(), bcf);
-    printf("material %zu alpha_mode=", i);
-    d_str(mat.alphaMode);
-    printf(" alpha_cutoff=");
-    d_dbl(mat.alphaCutoff);
-    printf(" double_sided=%d emissive=", mat.doubleSided ? 1 : 0);
-    d_dbl_arr(ef, 3);
-    printf(" base_color_factor=");
-    d_dbl_arr(bcf, 4);
-    printf(" metallic=");
-    d_dbl(mat.pbrMetallicRoughness.metallicFactor);
-    printf(" roughness=");
-    d_dbl(mat.pbrMetallicRoughness.roughnessFactor);
-    printf(" base_color_tex=%d normal_tex=%d occlusion_tex=%d emissive_tex=%d\n",
-           mat.pbrMetallicRoughness.baseColorTexture.index,
-           mat.normalTexture.index,
-           mat.occlusionTexture.index,
-           mat.emissiveTexture.index);
-  }
-  for (size_t i = 0; i < m.textures.size(); ++i) {
-    const auto &t = m.textures[i];
-    printf("texture %zu source=%d sampler=%d\n", i, t.source, t.sampler);
-  }
-  for (size_t i = 0; i < m.samplers.size(); ++i) {
-    const auto &s = m.samplers[i];
-    printf("sampler %zu min_filter=%d mag_filter=%d wrap_s=%d wrap_t=%d\n",
-           i, s.minFilter, s.magFilter, s.wrapS, s.wrapT);
-  }
-  for (size_t i = 0; i < m.images.size(); ++i) {
-    const auto &im = m.images[i];
-    /* mime_type and uri normalization differ between v1/v3 (data URIs,
-       extension inference); buffer_view reference is the parse-fidelity bit. */
-    printf("image %zu buffer_view=%d\n", i, im.bufferView);
-  }
-  for (size_t i = 0; i < m.skins.size(); ++i) {
-    const auto &s = m.skins[i];
-    printf("skin %zu inverse_bind_matrices=%d skeleton=%d joints_count=%zu\n",
-           i, s.inverseBindMatrices, s.skeleton, s.joints.size());
-  }
-  for (size_t i = 0; i < m.animations.size(); ++i) {
-    const auto &a = m.animations[i];
-    printf("animation %zu channels_count=%zu samplers_count=%zu\n",
-           i, a.channels.size(), a.samplers.size());
-    for (size_t j = 0; j < a.channels.size(); ++j) {
-      const auto &c = a.channels[j];
-      printf("chan %zu %zu sampler=%d target_node=%d target_path=", i, j,
-             c.sampler, c.target_node);
-      d_str(c.target_path);
-      printf("\n");
-    }
-    for (size_t j = 0; j < a.samplers.size(); ++j) {
-      const auto &as = a.samplers[j];
-      printf("samp %zu %zu input=%d output=%d interpolation=", i, j,
-             as.input, as.output);
-      d_str(as.interpolation);
-      printf("\n");
-    }
-  }
-  for (size_t i = 0; i < m.cameras.size(); ++i) {
-    const auto &c = m.cameras[i];
-    bool is_persp = (c.type == "perspective");
-    printf("camera %zu type=", i);
-    d_str(c.type);
-    if (is_persp) {
-      printf(" yfov=");
-      d_dbl(c.perspective.yfov);
-      printf(" znear=");
-      d_dbl(c.perspective.znear);
-      printf(" zfar=");
-      d_dbl(c.perspective.zfar);
-      printf(" aspect=");
-      d_dbl(c.perspective.aspectRatio);
-    } else {
-      printf(" xmag=");
-      d_dbl(c.orthographic.xmag);
-      printf(" ymag=");
-      d_dbl(c.orthographic.ymag);
-      printf(" znear=");
-      d_dbl(c.orthographic.znear);
-      printf(" zfar=");
-      d_dbl(c.orthographic.zfar);
-    }
-    printf("\n");
-  }
-  for (size_t i = 0; i < m.scenes.size(); ++i) {
-    const auto &s = m.scenes[i];
-    printf("scene %zu nodes_count=%zu\n", i, s.nodes.size());
-  }
-  printf("DIGEST_END\n");
-}
-
 int main(int argc, char **argv) {
   if (argc < 2) {
     printf("Needs input.gltf\n");
     exit(1);
   }
 
-  // Store original JSON string for `extras` and `extensions`
-  bool store_original_json_for_extras_and_extensions = false;
-  if (argc > 2) {
-    store_original_json_for_extras_and_extensions = true;
-  }
-
   tinygltf::Model model;
   tinygltf::TinyGLTF gltf_ctx;
   std::string err;
-  std::string warn;
+  std::string warn; 
   std::string input_filename(argv[1]);
   std::string ext = GetFilePathExtension(input_filename);
 
-  gltf_ctx.SetStoreOriginalJSONForExtrasAndExtensions(
-      store_original_json_for_extras_and_extensions);
-
   bool ret = false;
   if (ext.compare("glb") == 0) {
     std::cout << "Reading binary glTF" << std::endl;
     // assume binary glTF.
-    ret = gltf_ctx.LoadBinaryFromFile(&model, &err, &warn,
-                                      input_filename.c_str());
+    ret = gltf_ctx.LoadBinaryFromFile(&model, &err, &warn, input_filename.c_str());
   } else {
     std::cout << "Reading ASCII glTF" << std::endl;
     // assume ascii glTF.
-    ret =
-        gltf_ctx.LoadASCIIFromFile(&model, &err, &warn, input_filename.c_str());
+    ret = gltf_ctx.LoadASCIIFromFile(&model, &err, &warn, input_filename.c_str());
   }
 
   if (!warn.empty()) {
     printf("Warn: %s\n", warn.c_str());
   }
 
+
   if (!err.empty()) {
     printf("Err: %s\n", err.c_str());
   }
@@ -1103,20 +632,6 @@ int main(int argc, char **argv) {
     return -1;
   }
 
-  printf("COUNTS"
-         " accessors=%zu animations=%zu buffers=%zu bufferViews=%zu"
-         " cameras=%zu images=%zu materials=%zu meshes=%zu nodes=%zu"
-         " samplers=%zu scenes=%zu skins=%zu textures=%zu lights=%zu\n",
-         model.accessors.size(), model.animations.size(),
-         model.buffers.size(), model.bufferViews.size(),
-         model.cameras.size(), model.images.size(),
-         model.materials.size(), model.meshes.size(),
-         model.nodes.size(), model.samplers.size(),
-         model.scenes.size(), model.skins.size(),
-         model.textures.size(), model.lights.size());
-
-  PrintDigest(model);
-
   Dump(model);
 
   return 0;

meson.build

@@ -1,52 +0,0 @@
-project(
-  'tinygltf',
-  'c',
-  default_options: ['c_std=c11'],
-  meson_version: '>=0.55.0',
-)
-
-tinygltf_inc = include_directories('.', 'tests')
-
-if get_option('tests')
-  tests_workdir = join_paths(meson.current_source_dir(), 'tests')
-  cc = meson.get_compiler('c')
-
-  tester_v3_c = executable(
-    'tester_v3_c',
-    ['tests/tester_v3_c.c', 'tiny_gltf_v3.c'],
-    include_directories: tinygltf_inc,
-    c_args: ['-DTINYGLTF3_ENABLE_FS'],
-    install: false,
-  )
-  test('tester_v3_c', tester_v3_c, workdir: tests_workdir)
-
-  tester_v3_c_v1port = executable(
-    'tester_v3_c_v1port',
-    ['tests/tester_v3_c_v1port.c', 'tiny_gltf_v3.c'],
-    include_directories: tinygltf_inc,
-    c_args: ['-DTINYGLTF3_ENABLE_FS'],
-    install: false,
-  )
-  test('tester_v3_c_v1port', tester_v3_c_v1port, workdir: tests_workdir)
-
-  tester_v3_json_c = executable(
-    'tester_v3_json_c',
-    'tests/tester_v3_json_c.c',
-    include_directories: tinygltf_inc,
-    install: false,
-  )
-  test('tester_v3_json_c', tester_v3_json_c, workdir: tests_workdir)
-
-  freestanding_args = []
-  if cc.get_id() in ['clang', 'gcc']
-    freestanding_args += ['-ffreestanding']
-  endif
-  tester_v3_freestanding = executable(
-    'tester_v3_freestanding',
-    'tests/tester_v3_freestanding.c',
-    include_directories: tinygltf_inc,
-    c_args: freestanding_args,
-    install: false,
-  )
-  test('tester_v3_freestanding', tester_v3_freestanding, workdir: tests_workdir)
-endif

meson_options.txt

@@ -1 +0,0 @@
-option('tests', type: 'boolean', value: true, description: 'Build and run tinygltf tests')

models/BoundsChecking/integer-out-of-bounds.gltf

@@ -1,67 +0,0 @@
-{
-  "scenes": [
-    {
-      "nodes": [0]
-    }
-  ],
-  "nodes": [
-    {
-      "mesh": 0
-    }
-  ],
-  "meshes": [
-    {
-      "primitives": [
-        {
-          "attributes": {
-            "POSITION": 1
-          },
-          "indices": 0
-        }
-      ]
-    }
-  ],
-  "buffers": [
-    {
-      "uri": "simpleTriangle.bin",
-      "byteLength": 44
-    }
-  ],
-  "bufferViews": [
-    {
-      "buffer": 0,
-      "byteOffset": 0,
-      "byteLength": 1e300,
-      "target": 34963
-    },
-    {
-      "buffer": 0,
-      "byteOffset": 8,
-      "byteLength": 36,
-      "target": 34962
-    }
-  ],
-  "accessors": [
-    {
-      "bufferView": 0,
-      "byteOffset": 0,
-      "componentType": 5123,
-      "count": 3,
-      "type": "SCALAR",
-      "max": [2],
-      "min": [0]
-    },
-    {
-      "bufferView": 1,
-      "byteOffset": 0,
-      "componentType": 5126,
-      "count": 3,
-      "type": "VEC3",
-      "max": [1, 1, 0],
-      "min": [0, 0, 0]
-    }
-  ],
-  "asset": {
-    "version": "2.0"
-  }
-}

models/BoundsChecking/invalid-buffer-index.gltf

@@ -1,53 +0,0 @@
-{
-  "scenes": [],
-  "nodes": [],
-  "meshes": [
-    {
-      "primitives": [
-        {
-          "attributes": {},
-          "indices": 0
-        }
-      ]
-    }
-  ],
-  "buffers": [
-    {
-      "uri": "simpleTriangle.bin",
-      "byteLength": 44
-    }
-  ],
-  "bufferViews": [
-    {
-      "buffer": 0,
-      "byteOffset": 0,
-      "byteLength": 6,
-      "target": 34963
-    },
-    {
-      "buffer": 1,
-      "byteOffset": 0,
-      "byteLength": 6,
-      "target": 34963
-    }
-  ],
-  "images": [
-    {
-      "bufferView": 1,
-      "mimeType": "image/png"
-    }
-  ],
-  "accessors": [
-    {
-      "bufferView": 0,
-      "componentType": 5123,
-      "count": 3,
-      "type": "SCALAR",
-      "max": [2],
-      "min": [0]
-    }
-  ],
-  "asset": {
-    "version": "2.0"
-  }
-}

models/BoundsChecking/invalid-buffer-view-index.gltf

@@ -1,36 +0,0 @@
-{
-  "scenes": [],
-  "nodes": [],
-  "buffers": [],
-  "meshes": [
-    {
-      "primitives": [
-        {
-          "attributes": {},
-          "indices": 0
-        }
-      ]
-    }
-  ],
-  "bufferViews": [
-    {
-      "buffer": 0,
-      "byteOffset": 0,
-      "byteLength": 6,
-      "target": 34963
-    }
-  ],
-  "accessors": [
-    {
-      "bufferView": 1,
-      "componentType": 5123,
-      "count": 3,
-      "type": "SCALAR",
-      "max": [2],
-      "min": [0]
-    }
-  ],
-  "asset": {
-    "version": "2.0"
-  }
-}

models/BoundsChecking/invalid-primitive-indices.gltf

@@ -1,36 +0,0 @@
-{
-  "scenes": [],
-  "nodes": [],
-  "buffers": [],
-  "meshes": [
-    {
-      "primitives": [
-        {
-          "attributes": {},
-          "indices": 1
-        }
-      ]
-    }
-  ],
-  "bufferViews": [
-    {
-      "buffer": 0,
-      "byteOffset": 0,
-      "byteLength": 6,
-      "target": 34963
-    }
-  ],
-  "accessors": [
-    {
-      "bufferView": 1,
-      "componentType": 5123,
-      "count": 3,
-      "type": "SCALAR",
-      "max": [2],
-      "min": [0]
-    }
-  ],
-  "asset": {
-    "version": "2.0"
-  }
-}

models/Cube-texture-ext/Cube-textransform.gltf

@@ -1,224 +0,0 @@
-{
-  "accessors": [
-    {
-      "bufferView": 0,
-      "byteOffset": 0,
-      "componentType": 5123,
-      "count": 36,
-      "max": [
-        35
-      ],
-      "min": [
-        0
-      ],
-      "type": "SCALAR"
-    },
-    {
-      "bufferView": 1,
-      "byteOffset": 0,
-      "componentType": 5126,
-      "count": 36,
-      "max": [
-        1,
-        1,
-        1.000001
-      ],
-      "min": [
-        -1,
-        -1,
-        -1
-      ],
-      "type": "VEC3"
-    },
-    {
-      "bufferView": 2,
-      "byteOffset": 0,
-      "componentType": 5126,
-      "count": 36,
-      "max": [
-        1,
-        1,
-        1
-      ],
-      "min": [
-        -1,
-        -1,
-        -1
-      ],
-      "type": "VEC3"
-    },
-    {
-      "bufferView": 3,
-      "byteOffset": 0,
-      "componentType": 5126,
-      "count": 36,
-      "max": [
-        1,
-        -0,
-        -0,
-        1
-      ],
-      "min": [
-        0,
-        -0,
-        -1,
-        -1
-      ],
-      "type": "VEC4"
-    },
-    {
-      "bufferView": 4,
-      "byteOffset": 0,
-      "componentType": 5126,
-      "count": 36,
-      "max": [
-        1,
-        1
-      ],
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models/Cube-texture-ext/README.md

@@ -1,6 +0,0 @@
-Added KHR_texture_transform property to Cube scene.
-
-License: Donated by Norbert Nopper for glTF testing.
-
-https://github.com/KhronosGroup/glTF-Sample-Models/tree/master/2.0/Cube
-

models/CubeImageUriSpaces/CubeImageUriMultipleSpaces.gltf

@@ -1,171 +0,0 @@
-{
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models/CubeImageUriSpaces/CubeImageUriSpaces.gltf

@@ -1,171 +0,0 @@
-{
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models/Extensions-issue97/test.gltf

@@ -1,66 +0,0 @@
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-{
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models/Extensions-overwrite-issue261/issue-261.gltf

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