Fix Windows path split in tester_v3_c parse_file_arg too

parse_file_arg() duplicated the '/' only base-dir split from
parse_path_for_test(); a Windows-style arg (models\Cube\Cube.gltf)
yielded an empty base dir and external buffers failed to load.

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,45 @@
+## 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 && make run`)
+
+### 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/instructions/copilot-instructions.md

@@ -1,92 +0,0 @@
-# Copilot Review Instructions for TinyGLTF
-
-This document provides guidelines for reviewing code changes in the TinyGLTF repository.
-
-## Memory Safety
-
-- **Buffer Overflows**: Check for proper bounds checking when accessing arrays, vectors, and buffers. Verify that buffer sizes are validated before read/write operations.
-- **Null Pointer Dereferences**: Ensure all pointers are checked for null before dereferencing, especially when handling optional glTF fields.
-- **Memory Leaks**: Verify proper resource management, including RAII patterns for file handles, image data, and dynamically allocated memory.
-- **Use-After-Free**: Check for proper lifetime management of objects, especially when dealing with callbacks and asynchronous operations.
-
-## Error Handling
-
-- **File I/O**: Verify that all file operations have proper error checking and meaningful error messages.
-- **JSON Parsing**: Ensure JSON parsing errors are caught and reported with helpful context about the location and nature of the error.
-- **Resource Loading**: Check that failures in loading images, buffers, and other resources are properly handled and don't cause crashes.
-- **Error Propagation**: Verify that errors are properly propagated through the call stack with appropriate error messages.
-
-## glTF 2.0 Specification Compliance
-
-- **Required Fields**: Ensure all required glTF fields are validated and present.
-- **Data Types**: Verify that data types match the glTF specification (e.g., component types, accessor types).
-- **Constraints**: Check that glTF constraints are enforced (e.g., valid ranges for enums, buffer stride requirements).
-- **Extensions**: Verify proper handling of glTF extensions and that unknown extensions are handled gracefully.
-- **Validation**: Ensure new features align with the glTF 2.0 specification from the Khronos Group.
-
-## Cross-Platform Compatibility
-
-- **Windows**: Check for proper handling of Windows-specific issues (path separators, line endings, file operations).
-- **Linux**: Verify compatibility with various Linux distributions and compilers (GCC, Clang).
-- **macOS**: Ensure macOS-specific considerations are addressed (case-sensitive filesystems, Clang compatibility).
-- **Mobile Platforms**: Consider Android and iOS compatibility where applicable.
-- **Endianness**: Verify proper handling of byte order when reading binary data.
-- **Compiler Compatibility**: Ensure code compiles with C++11 standard and supported compilers (MSVC, GCC, Clang).
-
-## Edge Cases in glTF Parsing
-
-- **Empty/Minimal Files**: Verify handling of minimal valid glTF files.
-- **Large Files**: Check for proper handling of large glTF files and buffers without memory exhaustion.
-- **Malformed Data**: Ensure graceful handling of malformed or invalid glTF data.
-- **Missing Optional Fields**: Verify correct behavior when optional glTF fields are absent.
-- **Edge Values**: Check handling of boundary values (e.g., maximum buffer sizes, extreme floating-point values).
-- **Base64 Encoding**: Verify proper handling of base64-encoded data URIs and invalid encodings.
-
-## Backwards Compatibility
-
-- **API Changes**: Ensure public API changes maintain backwards compatibility or are properly deprecated.
-- **Breaking Changes**: Flag any breaking changes for major version updates and document migration paths.
-- **Binary Compatibility**: Consider ABI stability for header-only library changes.
-- **Default Behavior**: Verify that default behavior of existing functionality remains unchanged.
-
-## Performance Considerations
-
-- **Parsing Performance**: Check for unnecessary copies, redundant allocations, and inefficient algorithms in parsing logic.
-- **Memory Usage**: Verify efficient memory usage, especially when loading large glTF files.
-- **I/O Operations**: Ensure efficient file reading and minimize unnecessary disk access.
-- **String Operations**: Check for efficient string handling (use of string_view, move semantics).
-- **STL Usage**: Verify appropriate use of STL containers and algorithms.
-
-## Documentation
-
-- **Public API**: Ensure all public functions, classes, and methods have clear documentation comments.
-- **Parameters**: Verify that function parameters are documented, including expected ranges and constraints.
-- **Return Values**: Document return values and possible error conditions.
-- **Examples**: Check that complex features include usage examples.
-- **Changelog**: Verify that significant changes are documented in release notes or changelog.
-
-## Testing
-
-- **Test Coverage**: Ensure new features include appropriate unit tests or integration tests.
-- **Edge Cases**: Verify that tests cover edge cases and error conditions.
-- **Cross-Platform Tests**: Check that tests run on all supported platforms.
-- **Regression Tests**: Ensure bug fixes include regression tests to prevent recurrence.
-- **Sample Files**: Verify that changes are tested with various valid and invalid glTF sample files.
-
-## Code Style Consistency
-
-- **Header-Only Pattern**: Maintain the header-only library structure.
-- **Naming Conventions**: Follow existing naming conventions (CamelCase for types, snake_case for functions where applicable).
-- **Formatting**: Adhere to the existing code formatting style (check `.clang-format` if available).
-- **Include Guards**: Verify proper include guards and header organization.
-- **Namespace Usage**: Ensure proper use of the `tinygltf` namespace.
-- **Comments**: Maintain consistent comment style with existing code.
-- **C++11 Compliance**: Verify that code uses C++11 features appropriately and doesn't require newer standards unless specified.
-
-## Additional Considerations
-
-- **Third-Party Dependencies**: Minimize new dependencies; prefer existing dependencies (json.hpp, stb_image).
-- **Warnings**: Ensure code compiles without warnings on supported compilers.
-- **const Correctness**: Verify proper use of const for parameters and methods.
-- **RAII**: Prefer RAII patterns for resource management over manual cleanup.
-- **noexcept**: Use noexcept appropriately for move constructors and move assignment operators.

.github/workflows/c-cpp.yml

@@ -4,166 +4,65 @@ 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@v1
-
-  #    - 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
+    name: Build v3 C tests with MinGW gcc cross
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        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
+            cd tests
+            x86_64-w64-mingw32-gcc -I../ -std=c11 -DTINYGLTF3_ENABLE_FS -o tester_v3_c.exe tester_v3_c.c ../tiny_gltf_v3.c
 
-  # Windows(x64) + Visual Studio 2022 build
-  # Assume windows-latest have VS2022 installed
+  # Windows(x64) + MSVC build (VS version agnostic: msvc-dev-cmd locates
+  # whatever Visual Studio the runner image ships, e.g. VS2022 or VS2026)
   build-windows-msvc:
 
     runs-on: windows-latest
-    name: Build for Windows(x64, MSVC)
+    name: Build v3 C tests on 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@v1
+        uses: actions/checkout@v5
+      - name: Set up MSVC environment
+        uses: ilammy/msvc-dev-cmd@v1
       - 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 ..
-          cd ..
+        run: cmake -B build -G Ninja -DTINYGLTF3_BUILD_TESTS=ON
       - name: Build
-        run: cmake --build build --config Release
+        run: cmake --build build
+      - name: Run tests
+        run: ctest --test-dir build --output-on-failure
 
 
   build-linux:
 
     runs-on: ubuntu-latest
-    name: Buld with gcc
+    name: Build v3 C tests with gcc
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v5
     - name: build
       run: |
-        g++ -std=c++11 -o loader_example loader_example.cc
+        cd tests
+        cc -I../ -std=c11 -g -O0 -DTINYGLTF3_ENABLE_FS -o tester_v3_c tester_v3_c.c ../tiny_gltf_v3.c
     - name: test
       run: |
-        ./loader_example models/Cube/Cube.gltf
+        ./tests/tester_v3_c models/Cube/Cube.gltf
 
     - name: tests
       run: |
         cd tests
-        g++ -I../  -std=c++11 -g -O0 -o tester tester.cc
-        ./tester
+        make all
+        ./tester_v3_c
+        ./tester_v3_c_v1port
+        ./tester_v3_json_c
+        ./tester_v3_freestanding
         cd ..
-
-    - name: noexcept_tests
-      run: |
-        cd tests
-        g++ -DTINYGLTF_NOEXCEPTION -I../  -std=c++11 -g -O0 -o tester_noexcept tester.cc
-        ./tester_noexcept
-        cd ..
-
-
-  build-rapidjson-linux:
-
-    runs-on: ubuntu-latest
-    name: Buld with gcc + rapidjson
-
-    steps:
-    - uses: actions/checkout@v2
-    - 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@v2
-      - 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@v1
-      - 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

@@ -0,0 +1,389 @@
+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 -DTINYGLTF3_BUILD_TESTS=ON
+
+      - name: Build
+        run: cmake --build build
+
+      - name: Run tester_v3_c on a sample model
+        run: ./build/tester_v3_c 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 -DTINYGLTF3_BUILD_TESTS=ON
+
+      - name: Build
+        run: cmake --build build
+
+      - name: Run tester_v3_c on a sample model
+        run: ./build/tester_v3_c 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 -DTINYGLTF3_BUILD_TESTS=ON
+
+      - name: Build
+        run: cmake --build build
+
+      - name: Run tester_v3_c on a sample model
+        run: ./build/tester_v3_c 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 -DTINYGLTF3_BUILD_TESTS=ON
+
+      - name: Build
+        run: cmake --build build
+
+      - name: Run tester_v3_c on a sample model
+        run: ./build/tester_v3_c models/Cube/Cube.gltf
+
+      - name: Run tests
+        run: ctest --test-dir build --output-on-failure
+
+  # Windows x64 - MSVC (VS version agnostic; msvc-dev-cmd locates the
+  # Visual Studio shipped with the runner image, e.g. VS2022 or VS2026)
+  windows-msvc-x64:
+    runs-on: windows-latest
+    name: Windows x64 (MSVC)
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v5
+
+      - name: Set up MSVC environment
+        uses: ilammy/msvc-dev-cmd@v1
+
+      - name: Configure
+        run: cmake -B build -G Ninja -DTINYGLTF3_BUILD_TESTS=ON
+
+      - name: Build
+        run: cmake --build build
+
+      - name: Run tester_v3_c on a sample model
+        run: |
+          .\build\tester_v3_c.exe models\Cube\Cube.gltf
+
+      - name: Run tests
+        run: ctest --test-dir build --output-on-failure
+
+  # 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 -DTINYGLTF3_BUILD_TESTS=ON
+          cmake --build build
+
+      - name: Run tester_v3_c on a sample model
+        run: |
+          ./build/tester_v3_c 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: |
+          cd tests
+          x86_64-w64-mingw32-gcc -I../ -std=c11 -g -O0 -DTINYGLTF3_ENABLE_FS -o tester_v3_c.exe tester_v3_c.c ../tiny_gltf_v3.c
+
+  # 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
+
+  # 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 (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: Set up MSVC environment
+        uses: ilammy/msvc-dev-cmd@v1
+
+      - name: Build and run tester_v3_c
+        shell: cmd
+        run: |
+          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: |
+          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/codeql-analysis.yml

@@ -1,72 +0,0 @@
-# For most projects, this workflow file will not need changing; you simply need
-# to commit it to your repository.
-#
-# You may wish to alter this file to override the set of languages analyzed,
-# or to provide custom queries or build logic.
-#
-# ******** NOTE ********
-# We have attempted to detect the languages in your repository. Please check
-# the `language` matrix defined below to confirm you have the correct set of
-# supported CodeQL languages.
-#
-name: "CodeQL"
-
-on:
-  push:
-    branches: [ "master" ]
-  pull_request:
-    # The branches below must be a subset of the branches above
-    branches: [ "master" ]
-  schedule:
-    - cron: '21 20 * * 5'
-
-jobs:
-  analyze:
-    name: Analyze
-    runs-on: ubuntu-latest
-    permissions:
-      actions: read
-      contents: read
-      security-events: write
-
-    strategy:
-      fail-fast: false
-      matrix:
-        language: [ 'cpp', 'python' ]
-        # CodeQL supports [ 'cpp', 'csharp', 'go', 'java', 'javascript', 'python', 'ruby' ]
-        # Learn more about CodeQL language support at https://aka.ms/codeql-docs/language-support
-
-    steps:
-    - name: Checkout repository
-      uses: actions/checkout@v3
-
-    # Initializes the CodeQL tools for scanning.
-    - name: Initialize CodeQL
-      uses: github/codeql-action/init@v2
-      with:
-        languages: ${{ matrix.language }}
-        # If you wish to specify custom queries, you can do so here or in a config file.
-        # By default, queries listed here will override any specified in a config file.
-        # Prefix the list here with "+" to use these queries and those in the config file.
-        
-        # Details on CodeQL's query packs refer to : https://docs.github.com/en/code-security/code-scanning/automatically-scanning-your-code-for-vulnerabilities-and-errors/configuring-code-scanning#using-queries-in-ql-packs
-        # queries: security-extended,security-and-quality
-
-        
-    # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
-    # If this step fails, then you should remove it and run the build manually (see below)
-    - name: Autobuild
-      uses: github/codeql-action/autobuild@v2
-
-    # ℹ️ Command-line programs to run using the OS shell.
-    # 📚 See https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstepsrun
-
-    #   If the Autobuild fails above, remove it and uncomment the following three lines. 
-    #   modify them (or add more) to build your code if your project, please refer to the EXAMPLE below for guidance.
-
-    # - run: |
-    #   echo "Run, Build Application using script"
-    #   ./location_of_script_within_repo/buildscript.sh
-
-    - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v2

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

@@ -7,7 +7,11 @@ on:
       - 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:
@@ -20,7 +24,7 @@ jobs:
       run:
         shell: msys2 {0}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v5
 
       - name: Install core & build dependencies
         uses: msys2/setup-msys2@v2
@@ -37,9 +41,13 @@ jobs:
           cmake \
             -G"Ninja" \
             -S . \
-            -B build
+            -B build \
+            -DTINYGLTF3_BUILD_TESTS=ON
 
       - name: Build
         run: |
           cmake --build build
 
+      - name: Run tests
+        run: |
+          ctest --test-dir build --output-on-failure

.gitignore

@@ -1,4 +1,5 @@
 # CMake
+/build/
 CMakeCache.txt
 CMakeFiles
 CMakeScripts
@@ -21,6 +22,9 @@ premake5.tar.gz
 *.vcxproj*
 .vs
 
+# default cmake build dir
+build/
+
 #binary directories
 bin/
 obj/
@@ -66,14 +70,22 @@ imgui.ini
 *.app
 
 loader_example
-tests/tester
-tests/tester_noexcept
-tests/issue-97.gltf
-tests/issue-261.gltf
+# Compiled test binaries (built by tests/Makefile, CMakeLists.txt, meson.build)
+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/v3/fuzzer/fuzz_gltf_v3
+tests/v3/fuzzer/fuzz_gltf_v3_c
+
+# Generated by web/Makefile (make / make sample)
+web/tinygltf_v3.js
+web/tinygltf_v3.wasm
+web/Cube.glb
 
 # unignore
 !Makefile
-!examples/build-gltf/Makefile
-!examples/raytrace/cornellbox_suzanne.obj
 !tests/Makefile
-!tools/windows/premake5.exe

AGENTS.md

@@ -0,0 +1,55 @@
+# AGENTS.md — tinygltf v3 (C)
+
+TinyGLTF v3 C (`tiny_gltf_v3.h` + `tiny_gltf_v3.c` + `tinygltf_json_c.h`) is the
+mainline. Legacy v1/v2/v3-C++ code lives under `attic/` and is not built or
+tested.
+
+## Commands
+
+- Unit tests (C): `make -C tests all && make -C tests run`
+- CMake: `cmake -B build -DTINYGLTF3_BUILD_TESTS=ON && cmake --build build && ctest --test-dir build --output-on-failure`
+- Meson: `meson setup build && meson compile -C build && meson test -C build`
+- WASM/web demo (requires Emscripten SDK, default `~/work/emsdk`):
+  `make -C web && make -C web sample` — then open `http://localhost:8000` via `make -C web serve`
+- Fuzzers: `make -C tests/v3/fuzzer` (clang + libFuzzer)
+
+## Pre-push audit checklist
+
+Run **before every push**. Fix or unstage anything found; the audit must pass
+clean.
+
+1. **Working tree sanity**
+   - `git status --short` — no staged build artifacts, no surprise files.
+   - Never `git add -A` / `git add .`: stage only intended paths. The repo
+     root frequently contains untracked scratch files (`Fox.glb`,
+     `benchmark/synthetic_*`, `log*`, `.cache/`, `tests/v3/fuzzer/artifacts|corpus`,
+     stray `*.gltf`/`*.bin` files). Verify `git status` before staging.
+
+2. **Secret scan**
+   - `gitleaks detect --source . --no-banner -r /tmp/gitleaks.json`
+   - `~/local/bin/trufflehog git file://$PWD --no-update --only-verified`
+   - Both must report 0 real secrets. Known allowed finding: `B3G_LEFT_ARROW`
+     generic-api-key hits in `attic/examples/common/OpenGLWindow/` are false
+     positives (keyboard key constants).
+
+3. **No build artifacts or unwanted large binaries**
+   - `git ls-files -z | xargs -0 du -b | sort -rn | head -30` — review the top.
+   - Rule of thumb: nothing over ~1 MB unless it is a tracked, intentional
+     asset (e.g. `attic/tools/windows/premake5.exe`, `models/Cube/*.png`).
+   - Watch for: compiled executables, `*.wasm`/`*.exr`/`*.log`/`*.o`/`*.obj`,
+     generated `output.*`/`cloth*`/`sim*.bin`/`out_*.exr` files, and large
+     `.gltf`/`.glb` files. Small test/regression fixture `.gltf` files
+     (e.g. under `tests/`, `models/regression/`, `tests/v3/security/`) are OK.
+   - `web/tinygltf_v3.js`, `web/tinygltf_v3.wasm`, `web/Cube.glb` are
+     generated by `make -C web` and must stay gitignored (never commit them).
+
+4. **History is lean**
+   - If an unwanted file was added in an unpushed commit, rewrite it
+     (`git rebase -i origin/<branch>`, `git rm` + `--amend`) so the blob never
+     reaches the remote, then `git gc --prune=now` locally.
+   - Push only intended branches (`git push origin <branch>` — never `--all`
+     or `--force` unless explicitly asked).
+
+5. **Final smoke check**
+   - `make -C tests run` passes (all 4 testers).
+   - If touched: `cmake`/`meson` builds and `make -C web` still succeed.

CMakeLists.txt

@@ -1,98 +1,56 @@
-cmake_minimum_required(VERSION 3.6)
+cmake_minimum_required(VERSION 3.10)
 
-project(tinygltf)
+project(tinygltf_v3 C)
 
 include(GNUInstallDirs)
-include(CMakePackageConfigHelpers)
 
-set(CMAKE_CXX_STANDARD 11)
-set(CMAKE_CXX_STANDARD_REQUIRED On)
-set(CMAKE_CXX_EXTENSIONS Off)
+set(CMAKE_C_STANDARD 11)
+set(CMAKE_C_STANDARD_REQUIRED On)
+set(CMAKE_C_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(TINYGLTF3_BUILD_TESTS "Build and run tinygltf v3 C unit tests" ON)
+option(TINYGLTF3_INSTALL "Install tinygltf v3 files during install step" ON)
 
-if (TINYGLTF_BUILD_LOADER_EXAMPLE)
-  add_executable(loader_example
-    loader_example.cc
-    )
-endif (TINYGLTF_BUILD_LOADER_EXAMPLE)
+set(TINYGLTF3_INSTALL_DIR ${CMAKE_INSTALL_INCLUDEDIR})
 
-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)
+if (TINYGLTF3_BUILD_TESTS)
   enable_testing()
-  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)
-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_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
-    ${TINYGLTF_EXTRA_SOUECES}
-    DESTINATION
-    include
+  function(add_tinygltf_v3_c_test target)
+    add_executable(${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()
 
-    if(TINYGLTF_INSTALL_VENDOR)
-      INSTALL ( FILES
-        json.hpp
-        stb_image.h
-        stb_image_write.h
-        DESTINATION
-        include
-        )
-    endif()
+  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)
 
-endif(TINYGLTF_INSTALL)
+  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 ()
+
+if (TINYGLTF3_INSTALL)
+  install(FILES
+    tiny_gltf_v3.h
+    tiny_gltf_v3.c
+    tinygltf_json_c.h
+    DESTINATION
+    ${TINYGLTF3_INSTALL_DIR}
+  )
+endif ()

Makefile

@@ -1,13 +1,14 @@
-
-# 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
+# tinygltf v3 (C) — convenience build entry point.
+#
+#   make            — build all v3 C unit testers
+#   make test       — build and run all v3 C unit testers
+#   make clean      — remove test binaries
 
 all:
-	clang++  $(EXTRA_CXXFLAGS) -std=c++11 -g -O0 -o loader_example loader_example.cc $(EXTRA_LINKFLAGS)
+	$(MAKE) -C tests all
 
-lint:
-	deps/cpplint.py tiny_gltf.h
+test: all
+	$(MAKE) -C tests run
+
+clean:
+	$(MAKE) -C tests clean

README.md

@@ -1,271 +1,105 @@
-# Header only C++ tiny glTF library(loader/saver).
+# tinygltf v3 — C glTF 2.0 loader/saver
 
-`TinyGLTF` is a header only C++11 glTF 2.0 https://github.com/KhronosGroup/glTF library.
+`TinyGLTF v3` is a C11-first implementation of a glTF 2.0
+https://github.com/KhronosGroup/glTF loader and writer.
 
-`TinyGLTF` uses Niels Lohmann's json library (https://github.com/nlohmann/json), so now it requires C++11 compiler.
-(Also, you can use RadpidJSON as an JSON backend)
-If you are looking for old, C++03 version, please use `devel-picojson` branch (but not maintained anymore).
+- **Pure C POD API** (`tiny_gltf_v3.h` + `tiny_gltf_v3.c` + `tinygltf_json_c.h`) — no STL, no RTTI, no exceptions required; 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** — `tinygltf_json_c.h` is a locale-independent pure-C JSON parser/serializer used by the v3 runtime.
+- **Streaming callbacks** — opt-in streaming parse/write via user-supplied callbacks.
+- **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. See the `Security Considerations` block at the top of `tiny_gltf_v3.h`.
+
+## Quick start
+
+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.
+- **`tests/tester_v3_c_v1port.c`** — v3 C port of the legacy unit tests, keeping behavioral parity with the old C++ API.
+- **`tests/tester_v3_json_c.c`** and **`tests/tester_v3_freestanding.c`** — JSON backend and freestanding (no libc) checks.
+- **`test_runner.py`** — model verifier that runs `tests/tester_v3_c` against every model in `glTF-Sample-Models/2.0` and validates the structured COUNTS/DIGEST output.
+- **`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/`.
+
+### Building
+
+```bash
+# Plain make (gcc/clang)
+$ make -C tests && make -C tests run
+
+# CMake
+$ cmake -B build && cmake --build build && ctest --test-dir build --output-on-failure
+
+# Meson
+$ meson setup build && meson compile -C build && meson test -C build
+
+# WebAssembly (requires an Emscripten SDK, defaults to ~/work/emsdk)
+$ make -C web && make -C web sample
+```
+
+## Web/WASM demo
+
+[`web/`](web/) contains a browser demo that compiles the v3 C runtime with
+Emscripten and renders glTF/GLB files with three.js (file picker + drag &
+drop). See [`web/README.md`](web/README.md) for build instructions.
+
+## Legacy v1/v2 (C++)
+
+The previous C++ implementation (`tiny_gltf.h`, `tiny_gltf.cc`,
+`tinygltf_json.h`, `json.hpp`, `loader_example.cc`, the C++ examples and
+tests) is deprecated and has been moved to [`attic/`](attic/) for reference.
+It is no longer built, tested, or installed. TinyGLTF v3 C is the mainline.
 
 ## Status
 
-Currently TinyGLTF is stable and 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.
+TinyGLTF v3 (`tiny_gltf_v3.h` + `tiny_gltf_v3.c`) is the mainline release.
+API additions and behavior changes go through the usual review process.
 
 ## Builds
 
-[![Build status](https://ci.appveyor.com/api/projects/status/warngenu9wjjhlm8?svg=true)](https://ci.appveyor.com/project/syoyo/tinygltf)
-
 ![C/C++ CI](https://github.com/syoyo/tinygltf/workflows/C/C++%20CI/badge.svg)
 
-## 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
-  * [x] Linux + gcc/clang
-  * [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)
-* Buffers
-  * [x] Parse BASE64 encoded embedded buffer data(DataURI).
-  * [x] Load `.bin` file.
-* Image(Using stb_image)
-  * [x] Parse BASE64 encoded embedded image data(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.
-
-## 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.
-* [Diligent Engine](https://github.com/DiligentGraphics/DiligentEngine) - A modern cross-platform low-level graphics library and rendering framework
-* Lighthouse 2: a rendering framework for real-time ray tracing / path tracing experiments. https://github.com/jbikker/lighthouse2
-* [QuickLook GLTF](https://github.com/toshiks/glTF-quicklook) - quicklook plugin for macos. Also SceneKit wrapper for tinygltf.
-* [GlslViewer](https://github.com/patriciogonzalezvivo/glslViewer) - live GLSL coding for MacOS and Linux
-* [Vulkan-Samples](https://github.com/KhronosGroup/Vulkan-Samples) - The Vulkan Samples is collection of resources to help you develop optimized Vulkan applications.
-* [TDME2](https://github.com/andreasdr/tdme2) - TDME2 - ThreeDeeMiniEngine2 is a lightweight 3D engine including tools suited for 3D game development using C++11
-* [SanityEngine](https://github.com/DethRaid/SanityEngine) - A C++/D3D12 renderer focused on the personal and professional development of its developer
-* [Open3D](http://www.open3d.org/) - A Modern Library for 3D Data Processing
-* [Supernova Engine](https://github.com/supernovaengine/supernova) - Game engine for 2D and 3D projects with Lua or C++ in data oriented design.
-* [Wicked Engine<img src="https://github.com/turanszkij/WickedEngine/blob/master/Content/logo_small.png" width="28px" align="center"/>](https://github.com/turanszkij/WickedEngine) - 3D engine with modern graphics
-* 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
-* [ ] 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?
-
 ## Licenses
 
-TinyGLTF is licensed under MIT license.
+TinyGLTF is licensed under MIT license. See [LICENSE](LICENSE).
 
-TinyGLTF uses the following third party libraries.
+TinyGLTF v3 uses the following third party code:
 
-* json.hpp : Copyright (c) 2013-2017 Niels Lohmann. MIT license.
-* base64 : Copyright (C) 2004-2008 René Nyffenegger
-* stb_image.h : v2.08 - public domain image loader - [Github link](https://github.com/nothings/stb/blob/master/stb_image.h)
-* stb_image_write.h : v1.09 - public domain image writer - [Github link](https://github.com/nothings/stb/blob/master/stb_image_write.h)
-
-
-## Build and example
-
-Copy `stb_image.h`, `stb_image_write.h`, `json.hpp` and `tiny_gltf.h` to your project.
-
-### Loading glTF 2.0 model
-
-```c++
-// 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"
-
-using namespace tinygltf;
-
-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)
-
-if (!warn.empty()) {
-  printf("Warn: %s\n", warn.c_str());
-}
-
-if (!err.empty()) {
-  printf("Err: %s\n", err.c_str());
-}
-
-if (!ret) {
-  printf("Failed to parse glTF: %s\n", filename.c_str());
-}
-```
-
-#### 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(${PROJECT_NAME} PRIVATE "/path/to/tinygltf")
-```
-
-### Saving gltTF 2.0 model
-
-* Buffers.
-  * [x] To file
-  * [x] Embedded
-  * [ ] Draco compressed?
-* [x] Images
-  * [x] To file
-  * [x] Embedded
-* Binary(.glb)
-  * [x] .bin embedded single .glb
-  * [ ] External .bin
-
-## Running tests.
-
-### glTF parsing test
-
-#### Setup
-
-Python required.
-Git clone https://github.com/KhronosGroup/glTF-Sample-Models to your local dir.
-
-#### Run parsing test
-
-After building `loader_example`, edit `test_runner.py`, then,
-
-```bash
-$ python test_runner.py
-```
-
-### Unit tests
-
-```bash
-$ cd tests
-$ make
-$ ./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
+* fast_float (JSON number parsing, in `tinygltf_json_c.h`): Copyright (c) 2021 The fast_float authors. Apache License 2.0 / MIT / Boost 1.0.
+* dragonbox (JSON number serialization, in `tinygltf_json_c.h`): Copyright 2020-2024 Junekey Jeon. Apache 2.0 with LLVM exceptions / Boost 1.0.
+* stb_image.h (optional, `TINYGLTF3_ENABLE_STB_IMAGE`) : public domain image loader - [Github link](https://github.com/nothings/stb/blob/master/stb_image.h)

appveyor.yml

@@ -1,18 +0,0 @@
-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

attic/Makefile

@@ -0,0 +1,13 @@
+
+# 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)
+
+lint:
+	deps/cpplint.py tiny_gltf.h

attic/examples/anim-dump/AnimatedTriangle.gltf

@@ -0,0 +1,117 @@
+{
+  "scenes" : [
+    {
+      "nodes" : [ 0 ]
+    }
+  ],
+  
+  "nodes" : [
+    {
+      "mesh" : 0,
+      "rotation" : [ 0.0, 0.0, 0.0, 1.0 ]
+    }
+  ],
+  
+  "meshes" : [
+    {
+      "primitives" : [ {
+        "attributes" : {
+          "POSITION" : 1
+        },
+        "indices" : 0
+      } ]
+    }
+  ],
+  
+  "animations": [
+    {
+      "samplers" : [
+        {
+          "input" : 2,
+          "interpolation" : "LINEAR",
+          "output" : 3
+        }
+      ],
+      "channels" : [ {
+        "sampler" : 0,
+        "target" : {
+          "node" : 0,
+          "path" : "rotation"
+        }
+      } ]
+    }
+  ],
+
+  "buffers" : [
+    {
+      "uri" : "data:application/octet-stream;base64,AAABAAIAAAAAAAAAAAAAAAAAAAAAAIA/AAAAAAAAAAAAAAAAAACAPwAAAAA=",
+      "byteLength" : 44
+    },
+    {
+      "uri" : "data:application/octet-stream;base64,AAAAAAAAgD4AAAA/AABAPwAAgD8AAAAAAAAAAAAAAAAAAIA/AAAAAAAAAAD0/TQ/9P00PwAAAAAAAAAAAACAPwAAAAAAAAAAAAAAAPT9ND/0/TS/AAAAAAAAAAAAAAAAAACAPw==",
+      "byteLength" : 100
+    }
+  ],
+  "bufferViews" : [
+    {
+      "buffer" : 0,
+      "byteOffset" : 0,
+      "byteLength" : 6,
+      "target" : 34963
+    },
+    {
+      "buffer" : 0,
+      "byteOffset" : 8,
+      "byteLength" : 36,
+      "target" : 34962
+    },
+    {
+      "buffer" : 1,
+      "byteOffset" : 0,
+      "byteLength" : 100
+    }
+  ],
+  "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" : [ 1.0, 1.0, 0.0 ],
+      "min" : [ 0.0, 0.0, 0.0 ]
+    },
+    {
+      "bufferView" : 2,
+      "byteOffset" : 0,
+      "componentType" : 5126,
+      "count" : 5,
+      "type" : "SCALAR",
+      "max" : [ 1.0 ],
+      "min" : [ 0.0 ]
+    },
+    {
+      "bufferView" : 2,
+      "byteOffset" : 20,
+      "componentType" : 5126,
+      "count" : 5,
+      "type" : "VEC4",
+      "max" : [ 0.0, 0.0, 1.0, 1.0 ],
+      "min" : [ 0.0, 0.0, 0.0, -0.707 ]
+    }
+  ],
+  
+  "asset" : {
+    "version" : "2.0"
+  }
+  
+}

attic/examples/audio/LICENSE.dr_mp3

@@ -0,0 +1,47 @@
+This software is available as a choice of the following licenses. Choose
+whichever you prefer.
+
+===============================================================================
+ALTERNATIVE 1 - Public Domain (www.unlicense.org)
+===============================================================================
+This is free and unencumbered software released into the public domain.
+
+Anyone is free to copy, modify, publish, use, compile, sell, or distribute this
+software, either in source code form or as a compiled binary, for any purpose,
+commercial or non-commercial, and by any means.
+
+In jurisdictions that recognize copyright laws, the author or authors of this
+software dedicate any and all copyright interest in the software to the public
+domain. We make this dedication for the benefit of the public at large and to
+the detriment of our heirs and successors. We intend this dedication to be an
+overt act of relinquishment in perpetuity of all present and future rights to
+this software under copyright law.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+For more information, please refer to <http://unlicense.org/>
+
+===============================================================================
+ALTERNATIVE 2 - MIT No Attribution
+===============================================================================
+Copyright 2020 David Reid
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

attic/examples/audio/Makefile

@@ -0,0 +1,2 @@
+all:
+	clang++ -O1 -g -I../../ main.cc

attic/examples/audio/README.md

@@ -0,0 +1,3 @@
+Simple example playing embedded audio data thorough OMI_audio_emitter.
+
+Supported audio file: mp3

attic/examples/audio/main.cc

@@ -0,0 +1,67 @@
+#define TINYGLTF_IMPLEMENTATION
+#define STB_IMAGE_IMPLEMENTATION
+#define STB_IMAGE_WRITE_IMPLEMENTATION
+#include "tiny_gltf.h"
+
+#define DR_MP3_IMPLEMENTATION
+#include "dr_mp3.h"
+
+#include <iostream>
+
+static std::string GetFilePathExtension(const std::string &FileName) {
+  if (FileName.find_last_of(".") != std::string::npos)
+    return FileName.substr(FileName.find_last_of(".") + 1);
+  return "";
+}
+
+int main(int argc, char **argv) {
+
+  if (argc < 2) {
+    std::cout << "gltf_audio input.gltf/.glb" << std::endl;
+  }
+
+  float scale = 1.0f;
+  if (argc > 2) {
+    scale = atof(argv[2]);
+  }
+
+  tinygltf::Model model;
+  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 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());
+  } else {
+    // assume ascii glTF.
+    ret = loader.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());
+  }
+  if (!ret) {
+    printf("Failed to load .glTF : %s\n", argv[1]);
+    exit(-1);
+  }
+
+  return EXIT_SUCCESS;
+}

attic/examples/basic/Makefile

@@ -0,0 +1,61 @@
+# GNU Make workspace makefile autogenerated by Premake
+
+ifndef config
+  config=debug_native
+endif
+
+ifndef verbose
+  SILENT = @
+endif
+
+ifeq ($(config),debug_native)
+  basic_viewer_config = debug_native
+endif
+ifeq ($(config),debug_x64)
+  basic_viewer_config = debug_x64
+endif
+ifeq ($(config),debug_x32)
+  basic_viewer_config = debug_x32
+endif
+ifeq ($(config),release_native)
+  basic_viewer_config = release_native
+endif
+ifeq ($(config),release_x64)
+  basic_viewer_config = release_x64
+endif
+ifeq ($(config),release_x32)
+  basic_viewer_config = release_x32
+endif
+
+PROJECTS := basic_viewer
+
+.PHONY: all clean help $(PROJECTS) 
+
+all: $(PROJECTS)
+
+basic_viewer:
+ifneq (,$(basic_viewer_config))
+	@echo "==== Building basic_viewer ($(basic_viewer_config)) ===="
+	@${MAKE} --no-print-directory -C . -f basic_viewer.make config=$(basic_viewer_config)
+endif
+
+clean:
+	@${MAKE} --no-print-directory -C . -f basic_viewer.make clean
+
+help:
+	@echo "Usage: make [config=name] [target]"
+	@echo ""
+	@echo "CONFIGURATIONS:"
+	@echo "  debug_native"
+	@echo "  debug_x64"
+	@echo "  debug_x32"
+	@echo "  release_native"
+	@echo "  release_x64"
+	@echo "  release_x32"
+	@echo ""
+	@echo "TARGETS:"
+	@echo "   all (default)"
+	@echo "   clean"
+	@echo "   basic_viewer"
+	@echo ""
+	@echo "For more information, see https://github.com/premake/premake-core/wiki"

attic/examples/basic/basic_viewer.make

@@ -0,0 +1,250 @@
+# GNU Make project makefile autogenerated by Premake
+
+ifndef config
+  config=debug_native
+endif
+
+ifndef verbose
+  SILENT = @
+endif
+
+.PHONY: clean prebuild prelink
+
+ifeq ($(config),debug_native)
+  RESCOMP = windres
+  TARGETDIR = bin/native/Debug
+  TARGET = $(TARGETDIR)/basic_viewer
+  OBJDIR = obj/native/Debug
+  DEFINES += -DDEBUG
+  INCLUDES += -I. -I../.. -I../common/glm
+  FORCE_INCLUDE +=
+  ALL_CPPFLAGS += $(CPPFLAGS) -MMD -MP $(DEFINES) $(INCLUDES)
+  ALL_CFLAGS += $(CFLAGS) $(ALL_CPPFLAGS) -g -Wall -Wextra -fsanitize=address
+  ALL_CXXFLAGS += $(CXXFLAGS) $(ALL_CPPFLAGS) -g -Wall -Wextra -std=c++11 -fsanitize=address
+  ALL_RESFLAGS += $(RESFLAGS) $(DEFINES) $(INCLUDES)
+  LIBS += -lGL -lGLU -lm -lGLEW -lX11 -lXrandr -lXinerama -lXi -lXxf86vm -lXcursor -ldl
+  LDDEPS +=
+  ALL_LDFLAGS += $(LDFLAGS) -fsanitize=address `pkg-config --libs glfw3`
+  LINKCMD = $(CXX) -o "$@" $(OBJECTS) $(RESOURCES) $(ALL_LDFLAGS) $(LIBS)
+  define PREBUILDCMDS
+  endef
+  define PRELINKCMDS
+  endef
+  define POSTBUILDCMDS
+  endef
+all: prebuild prelink $(TARGET)
+	@:
+
+endif
+
+ifeq ($(config),debug_x64)
+  RESCOMP = windres
+  TARGETDIR = bin/x64/Debug
+  TARGET = $(TARGETDIR)/basic_viewer
+  OBJDIR = obj/x64/Debug
+  DEFINES += -DDEBUG
+  INCLUDES += -I. -I../.. -I../common/glm
+  FORCE_INCLUDE +=
+  ALL_CPPFLAGS += $(CPPFLAGS) -MMD -MP $(DEFINES) $(INCLUDES)
+  ALL_CFLAGS += $(CFLAGS) $(ALL_CPPFLAGS) -m64 -g -Wall -Wextra -fsanitize=address
+  ALL_CXXFLAGS += $(CXXFLAGS) $(ALL_CPPFLAGS) -m64 -g -Wall -Wextra -std=c++11 -fsanitize=address
+  ALL_RESFLAGS += $(RESFLAGS) $(DEFINES) $(INCLUDES)
+  LIBS += -lGL -lGLU -lm -lGLEW -lX11 -lXrandr -lXinerama -lXi -lXxf86vm -lXcursor -ldl
+  LDDEPS +=
+  ALL_LDFLAGS += $(LDFLAGS) -L/usr/lib64 -m64 -fsanitize=address `pkg-config --libs glfw3`
+  LINKCMD = $(CXX) -o "$@" $(OBJECTS) $(RESOURCES) $(ALL_LDFLAGS) $(LIBS)
+  define PREBUILDCMDS
+  endef
+  define PRELINKCMDS
+  endef
+  define POSTBUILDCMDS
+  endef
+all: prebuild prelink $(TARGET)
+	@:
+
+endif
+
+ifeq ($(config),debug_x32)
+  RESCOMP = windres
+  TARGETDIR = bin/x32/Debug
+  TARGET = $(TARGETDIR)/basic_viewer
+  OBJDIR = obj/x32/Debug
+  DEFINES += -DDEBUG
+  INCLUDES += -I. -I../.. -I../common/glm
+  FORCE_INCLUDE +=
+  ALL_CPPFLAGS += $(CPPFLAGS) -MMD -MP $(DEFINES) $(INCLUDES)
+  ALL_CFLAGS += $(CFLAGS) $(ALL_CPPFLAGS) -m32 -g -Wall -Wextra -fsanitize=address
+  ALL_CXXFLAGS += $(CXXFLAGS) $(ALL_CPPFLAGS) -m32 -g -Wall -Wextra -std=c++11 -fsanitize=address
+  ALL_RESFLAGS += $(RESFLAGS) $(DEFINES) $(INCLUDES)
+  LIBS += -lGL -lGLU -lm -lGLEW -lX11 -lXrandr -lXinerama -lXi -lXxf86vm -lXcursor -ldl
+  LDDEPS +=
+  ALL_LDFLAGS += $(LDFLAGS) -L/usr/lib32 -m32 -fsanitize=address `pkg-config --libs glfw3`
+  LINKCMD = $(CXX) -o "$@" $(OBJECTS) $(RESOURCES) $(ALL_LDFLAGS) $(LIBS)
+  define PREBUILDCMDS
+  endef
+  define PRELINKCMDS
+  endef
+  define POSTBUILDCMDS
+  endef
+all: prebuild prelink $(TARGET)
+	@:
+
+endif
+
+ifeq ($(config),release_native)
+  RESCOMP = windres
+  TARGETDIR = bin/native/Release
+  TARGET = $(TARGETDIR)/basic_viewer
+  OBJDIR = obj/native/Release
+  DEFINES += -DNDEBUG
+  INCLUDES += -I. -I../.. -I../common/glm
+  FORCE_INCLUDE +=
+  ALL_CPPFLAGS += $(CPPFLAGS) -MMD -MP $(DEFINES) $(INCLUDES)
+  ALL_CFLAGS += $(CFLAGS) $(ALL_CPPFLAGS) -O2 -Wall -Wextra -fsanitize=address
+  ALL_CXXFLAGS += $(CXXFLAGS) $(ALL_CPPFLAGS) -O2 -Wall -Wextra -std=c++11 -fsanitize=address
+  ALL_RESFLAGS += $(RESFLAGS) $(DEFINES) $(INCLUDES)
+  LIBS += -lGL -lGLU -lm -lGLEW -lX11 -lXrandr -lXinerama -lXi -lXxf86vm -lXcursor -ldl
+  LDDEPS +=
+  ALL_LDFLAGS += $(LDFLAGS) -s -fsanitize=address `pkg-config --libs glfw3`
+  LINKCMD = $(CXX) -o "$@" $(OBJECTS) $(RESOURCES) $(ALL_LDFLAGS) $(LIBS)
+  define PREBUILDCMDS
+  endef
+  define PRELINKCMDS
+  endef
+  define POSTBUILDCMDS
+  endef
+all: prebuild prelink $(TARGET)
+	@:
+
+endif
+
+ifeq ($(config),release_x64)
+  RESCOMP = windres
+  TARGETDIR = bin/x64/Release
+  TARGET = $(TARGETDIR)/basic_viewer
+  OBJDIR = obj/x64/Release
+  DEFINES += -DNDEBUG
+  INCLUDES += -I. -I../.. -I../common/glm
+  FORCE_INCLUDE +=
+  ALL_CPPFLAGS += $(CPPFLAGS) -MMD -MP $(DEFINES) $(INCLUDES)
+  ALL_CFLAGS += $(CFLAGS) $(ALL_CPPFLAGS) -m64 -O2 -Wall -Wextra -fsanitize=address
+  ALL_CXXFLAGS += $(CXXFLAGS) $(ALL_CPPFLAGS) -m64 -O2 -Wall -Wextra -std=c++11 -fsanitize=address
+  ALL_RESFLAGS += $(RESFLAGS) $(DEFINES) $(INCLUDES)
+  LIBS += -lGL -lGLU -lm -lGLEW -lX11 -lXrandr -lXinerama -lXi -lXxf86vm -lXcursor -ldl
+  LDDEPS +=
+  ALL_LDFLAGS += $(LDFLAGS) -L/usr/lib64 -m64 -s -fsanitize=address `pkg-config --libs glfw3`
+  LINKCMD = $(CXX) -o "$@" $(OBJECTS) $(RESOURCES) $(ALL_LDFLAGS) $(LIBS)
+  define PREBUILDCMDS
+  endef
+  define PRELINKCMDS
+  endef
+  define POSTBUILDCMDS
+  endef
+all: prebuild prelink $(TARGET)
+	@:
+
+endif
+
+ifeq ($(config),release_x32)
+  RESCOMP = windres
+  TARGETDIR = bin/x32/Release
+  TARGET = $(TARGETDIR)/basic_viewer
+  OBJDIR = obj/x32/Release
+  DEFINES += -DNDEBUG
+  INCLUDES += -I. -I../.. -I../common/glm
+  FORCE_INCLUDE +=
+  ALL_CPPFLAGS += $(CPPFLAGS) -MMD -MP $(DEFINES) $(INCLUDES)
+  ALL_CFLAGS += $(CFLAGS) $(ALL_CPPFLAGS) -m32 -O2 -Wall -Wextra -fsanitize=address
+  ALL_CXXFLAGS += $(CXXFLAGS) $(ALL_CPPFLAGS) -m32 -O2 -Wall -Wextra -std=c++11 -fsanitize=address
+  ALL_RESFLAGS += $(RESFLAGS) $(DEFINES) $(INCLUDES)
+  LIBS += -lGL -lGLU -lm -lGLEW -lX11 -lXrandr -lXinerama -lXi -lXxf86vm -lXcursor -ldl
+  LDDEPS +=
+  ALL_LDFLAGS += $(LDFLAGS) -L/usr/lib32 -m32 -s -fsanitize=address `pkg-config --libs glfw3`
+  LINKCMD = $(CXX) -o "$@" $(OBJECTS) $(RESOURCES) $(ALL_LDFLAGS) $(LIBS)
+  define PREBUILDCMDS
+  endef
+  define PRELINKCMDS
+  endef
+  define POSTBUILDCMDS
+  endef
+all: prebuild prelink $(TARGET)
+	@:
+
+endif
+
+OBJECTS := \
+	$(OBJDIR)/main.o \
+	$(OBJDIR)/shaders.o \
+	$(OBJDIR)/window.o \
+
+RESOURCES := \
+
+CUSTOMFILES := \
+
+SHELLTYPE := posix
+ifeq (.exe,$(findstring .exe,$(ComSpec)))
+	SHELLTYPE := msdos
+endif
+
+$(TARGET): $(GCH) ${CUSTOMFILES} $(OBJECTS) $(LDDEPS) $(RESOURCES) | $(TARGETDIR)
+	@echo Linking basic_viewer
+	$(SILENT) $(LINKCMD)
+	$(POSTBUILDCMDS)
+
+$(CUSTOMFILES): | $(OBJDIR)
+
+$(TARGETDIR):
+	@echo Creating $(TARGETDIR)
+ifeq (posix,$(SHELLTYPE))
+	$(SILENT) mkdir -p $(TARGETDIR)
+else
+	$(SILENT) mkdir $(subst /,\\,$(TARGETDIR))
+endif
+
+$(OBJDIR):
+	@echo Creating $(OBJDIR)
+ifeq (posix,$(SHELLTYPE))
+	$(SILENT) mkdir -p $(OBJDIR)
+else
+	$(SILENT) mkdir $(subst /,\\,$(OBJDIR))
+endif
+
+clean:
+	@echo Cleaning basic_viewer
+ifeq (posix,$(SHELLTYPE))
+	$(SILENT) rm -f  $(TARGET)
+	$(SILENT) rm -rf $(OBJDIR)
+else
+	$(SILENT) if exist $(subst /,\\,$(TARGET)) del $(subst /,\\,$(TARGET))
+	$(SILENT) if exist $(subst /,\\,$(OBJDIR)) rmdir /s /q $(subst /,\\,$(OBJDIR))
+endif
+
+prebuild:
+	$(PREBUILDCMDS)
+
+prelink:
+	$(PRELINKCMDS)
+
+ifneq (,$(PCH))
+$(OBJECTS): $(GCH) $(PCH) | $(OBJDIR)
+$(GCH): $(PCH) | $(OBJDIR)
+	@echo $(notdir $<)
+	$(SILENT) $(CXX) -x c++-header $(ALL_CXXFLAGS) -o "$@" -MF "$(@:%.gch=%.d)" -c "$<"
+else
+$(OBJECTS): | $(OBJDIR)
+endif
+
+$(OBJDIR)/main.o: main.cpp
+	@echo $(notdir $<)
+	$(SILENT) $(CXX) $(ALL_CXXFLAGS) $(FORCE_INCLUDE) -o "$@" -MF "$(@:%.o=%.d)" -c "$<"
+$(OBJDIR)/shaders.o: shaders.cpp
+	@echo $(notdir $<)
+	$(SILENT) $(CXX) $(ALL_CXXFLAGS) $(FORCE_INCLUDE) -o "$@" -MF "$(@:%.o=%.d)" -c "$<"
+$(OBJDIR)/window.o: window.cpp
+	@echo $(notdir $<)
+	$(SILENT) $(CXX) $(ALL_CXXFLAGS) $(FORCE_INCLUDE) -o "$@" -MF "$(@:%.o=%.d)" -c "$<"
+
+-include $(OBJECTS:%.o=%.d)
+ifneq (,$(PCH))
+  -include $(OBJDIR)/$(notdir $(PCH)).d
+endif

attic/examples/basic/cube.gltf

@@ -0,0 +1,152 @@
+{
+    "asset" : {
+        "generator" : "Khronos glTF Blender I/O v1.1.46",
+        "version" : "2.0"
+    },
+    "scene" : 0,
+    "scenes" : [
+        {
+            "name" : "Scene",
+            "nodes" : [
+                0,
+                1,
+                2
+            ]
+        }
+    ],
+    "nodes" : [
+        {
+            "mesh" : 0,
+            "name" : "Cube"
+        },
+        {
+            "name" : "Light",
+            "rotation" : [
+                0.16907575726509094,
+                0.7558803558349609,
+                -0.27217137813568115,
+                0.570947527885437
+            ],
+            "translation" : [
+                4.076245307922363,
+                5.903861999511719,
+                -1.0054539442062378
+            ]
+        },
+        {
+            "name" : "Camera",
+            "rotation" : [
+                0.483536034822464,
+                0.33687159419059753,
+                -0.20870360732078552,
+                0.7804827094078064
+            ],
+            "translation" : [
+                7.358891487121582,
+                4.958309173583984,
+                6.925790786743164
+            ]
+        }
+    ],
+    "materials" : [
+        {
+            "doubleSided" : true,
+            "emissiveFactor" : [
+                0,
+                0,
+                0
+            ],
+            "name" : "Material",
+            "pbrMetallicRoughness" : {
+                "baseColorFactor" : [
+                    0.800000011920929,
+                    0.800000011920929,
+                    0.800000011920929,
+                    1
+                ],
+                "metallicFactor" : 0,
+                "roughnessFactor" : 0.4000000059604645
+            }
+        }
+    ],
+    "meshes" : [
+        {
+            "name" : "Cube",
+            "primitives" : [
+                {
+                    "attributes" : {
+                        "POSITION" : 0,
+                        "NORMAL" : 1,
+                        "TEXCOORD_0" : 2
+                    },
+                    "indices" : 3,
+                    "material" : 0
+                }
+            ]
+        }
+    ],
+    "accessors" : [
+        {
+            "bufferView" : 0,
+            "componentType" : 5126,
+            "count" : 24,
+            "max" : [
+                1,
+                1,
+                1
+            ],
+            "min" : [
+                -1,
+                -1,
+                -1
+            ],
+            "type" : "VEC3"
+        },
+        {
+            "bufferView" : 1,
+            "componentType" : 5126,
+            "count" : 24,
+            "type" : "VEC3"
+        },
+        {
+            "bufferView" : 2,
+            "componentType" : 5126,
+            "count" : 24,
+            "type" : "VEC2"
+        },
+        {
+            "bufferView" : 3,
+            "componentType" : 5123,
+            "count" : 36,
+            "type" : "SCALAR"
+        }
+    ],
+    "bufferViews" : [
+        {
+            "buffer" : 0,
+            "byteLength" : 288,
+            "byteOffset" : 0
+        },
+        {
+            "buffer" : 0,
+            "byteLength" : 288,
+            "byteOffset" : 288
+        },
+        {
+            "buffer" : 0,
+            "byteLength" : 192,
+            "byteOffset" : 576
+        },
+        {
+            "buffer" : 0,
+            "byteLength" : 72,
+            "byteOffset" : 768
+        }
+    ],
+    "buffers" : [
+        {
+            "byteLength" : 840,
+            "uri" : "data:application/octet-stream;base64,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"
+        }
+    ]
+}

attic/examples/build-gltf/create_triangle_gltf-light.cpp

@@ -0,0 +1,129 @@
+// 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 TINYGLTF_USE_RAPIDJSON
+#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);
+
+  // lights
+  tinygltf::Light dummyLight;
+  dummyLight.name = "bora";
+  m.lights.push_back(dummyLight);
+  tinygltf::Value dummyVal(3.14);
+  m.extensions.emplace("ext1", dummyVal);
+
+  // 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);
+}

attic/examples/build-gltf/triangle.gltf

@@ -0,0 +1,94 @@
+{
+  "accessors": [
+    {
+      "bufferView": 0,
+      "componentType": 5123,
+      "count": 3,
+      "max": [
+        2
+      ],
+      "min": [
+        0
+      ],
+      "type": "SCALAR"
+    },
+    {
+      "bufferView": 1,
+      "componentType": 5126,
+      "count": 3,
+      "max": [
+        1.0,
+        1.0,
+        0.0
+      ],
+      "min": [
+        0.0,
+        0.0,
+        0.0
+      ],
+      "type": "VEC3"
+    }
+  ],
+  "asset": {
+    "generator": "tinygltf",
+    "version": "2.0"
+  },
+  "bufferViews": [
+    {
+      "buffer": 0,
+      "byteLength": 6,
+      "target": 34963
+    },
+    {
+      "buffer": 0,
+      "byteLength": 36,
+      "byteOffset": 8,
+      "target": 34962
+    }
+  ],
+  "buffers": [
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