ae88536f0c
In commit d955e73 we changed the default IBL from RGBM to RGB, but we
kept its internal format of RGBA8. Since the internal format is not
compatible with the data format, we see GL_INVALID_OPERATION during the
texture upload.
This is a single-pixel black texture, so the format does not really
matter, but this clears up a GL error seen on some platforms.
139 lines
5.3 KiB
C++
139 lines
5.3 KiB
C++
/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <filament/Engine.h>
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#include <filament/IndirectLight.h>
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#include <filament/LightManager.h>
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#include <filament/RenderableManager.h>
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#include <filament/Scene.h>
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#include <filament/TransformManager.h>
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#include <filament/View.h>
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#include <filameshio/MeshReader.h>
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#include <image/KtxBundle.h>
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#include <image/KtxUtility.h>
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#include "app/Config.h"
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#include "app/FilamentApp.h"
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#include "app/IBL.h"
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#include <stb_image.h>
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#include "generated/resources/resources.h"
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#include "generated/resources/textures.h"
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using namespace filament;
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using namespace image;
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using namespace filament::math;
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struct App {
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Material* material;
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MaterialInstance* materialInstance;
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filamesh::MeshReader::Mesh mesh;
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mat4f transform;
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Texture* albedo;
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Texture* normal;
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Texture* roughness;
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Texture* metallic;
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Texture* ao;
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};
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static const char* IBL_FOLDER = "envs/venetian_crossroads";
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static Texture* loadNormalMap(Engine* engine, const uint8_t* normals, size_t nbytes) {
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int w, h, n;
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unsigned char* data = stbi_load_from_memory(normals, nbytes, &w, &h, &n, 3);
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Texture* normalMap = Texture::Builder()
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.width(uint32_t(w))
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.height(uint32_t(h))
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.levels(0xff)
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.format(Texture::InternalFormat::RGB8)
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.build(*engine);
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Texture::PixelBufferDescriptor buffer(data, size_t(w * h * 3),
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Texture::Format::RGB, Texture::Type::UBYTE,
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(Texture::PixelBufferDescriptor::Callback) &stbi_image_free);
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normalMap->setImage(*engine, 0, std::move(buffer));
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normalMap->generateMipmaps(*engine);
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return normalMap;
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}
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int main(int argc, char** argv) {
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Config config;
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config.title = "suzanne";
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config.backend = Engine::Backend::VULKAN;
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config.iblDirectory = FilamentApp::getRootPath() + IBL_FOLDER;
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App app;
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auto setup = [config, &app](Engine* engine, View* view, Scene* scene) {
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auto& tcm = engine->getTransformManager();
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auto& rcm = engine->getRenderableManager();
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auto& em = utils::EntityManager::get();
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// Create textures. The KTX bundles are freed by KtxUtility.
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auto albedo = new image::KtxBundle(TEXTURES_ALBEDO_S3TC_DATA, TEXTURES_ALBEDO_S3TC_SIZE);
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auto ao = new image::KtxBundle(TEXTURES_AO_DATA, TEXTURES_AO_SIZE);
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auto metallic = new image::KtxBundle(TEXTURES_METALLIC_DATA, TEXTURES_METALLIC_SIZE);
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auto roughness = new image::KtxBundle(TEXTURES_ROUGHNESS_DATA, TEXTURES_ROUGHNESS_SIZE);
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app.albedo = KtxUtility::createTexture(engine, albedo, true);
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app.ao = KtxUtility::createTexture(engine, ao, false);
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app.metallic = KtxUtility::createTexture(engine, metallic, false);
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app.roughness = KtxUtility::createTexture(engine, roughness, false);
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app.normal = loadNormalMap(engine, TEXTURES_NORMAL_DATA, TEXTURES_NORMAL_SIZE);
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TextureSampler sampler(TextureSampler::MinFilter::LINEAR_MIPMAP_LINEAR,
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TextureSampler::MagFilter::LINEAR);
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// Instantiate material.
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app.material = Material::Builder()
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.package(RESOURCES_TEXTUREDLIT_DATA, RESOURCES_TEXTUREDLIT_SIZE).build(*engine);
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app.materialInstance = app.material->createInstance();
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app.materialInstance->setParameter("albedo", app.albedo, sampler);
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app.materialInstance->setParameter("ao", app.ao, sampler);
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app.materialInstance->setParameter("metallic", app.metallic, sampler);
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app.materialInstance->setParameter("normal", app.normal, sampler);
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app.materialInstance->setParameter("roughness", app.roughness, sampler);
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auto ibl = FilamentApp::get().getIBL()->getIndirectLight();
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ibl->setIntensity(100000);
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ibl->setRotation(mat3f::rotation(0.5f, float3{ 0, 1, 0 }));
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// Add geometry into the scene.
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app.mesh = filamesh::MeshReader::loadMeshFromBuffer(engine, RESOURCES_SUZANNE_DATA, nullptr,
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nullptr, app.materialInstance);
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auto ti = tcm.getInstance(app.mesh.renderable);
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app.transform = mat4f{ mat3f(1), float3(0, 0, -4) } * tcm.getWorldTransform(ti);
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rcm.setCastShadows(rcm.getInstance(app.mesh.renderable), false);
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scene->addEntity(app.mesh.renderable);
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tcm.setTransform(ti, app.transform);
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};
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auto cleanup = [&app](Engine* engine, View*, Scene*) {
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Fence::waitAndDestroy(engine->createFence());
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engine->destroy(app.materialInstance);
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engine->destroy(app.mesh.renderable);
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engine->destroy(app.material);
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engine->destroy(app.albedo);
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engine->destroy(app.normal);
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engine->destroy(app.roughness);
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engine->destroy(app.metallic);
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engine->destroy(app.ao);
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};
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FilamentApp::get().run(config, setup, cleanup);
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return 0;
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}
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