void Skybox::InitializePresets(Renderer* pRenderer, const Settings::Rendering& renderSettings)
{
EnvironmentMap::Initialize(pRenderer);
EnvironmentMap::LoadShaders();
const std::string extension = ".hdr";
const std::string BRDFLUTTextureFileName = "BRDFIntegrationLUT";
const std::string BRDFLUTTextureFilePath = EnvironmentMap::sTextureCacheDirectory + BRDFLUTTextureFileName + extension;
const bool bUseCache = Engine::GetSettings().bCacheEnvironmentMapsOnDisk && DirectoryUtil::FileExists(BRDFLUTTextureFilePath);
if(bUseCache)
{
EnvironmentMap::sBRDFIntegrationLUTTexture = pRenderer->CreateHDRTexture(BRDFLUTTextureFileName + extension, EnvironmentMap::sTextureCacheDirectory);
}
else
{
Texture LUTTexture = EnvironmentMap::CreateBRDFIntegralLUTTexture();
EnvironmentMap::sBRDFIntegrationLUTTexture = LUTTexture._id;
if (Engine::GetSettings().bCacheEnvironmentMapsOnDisk)
{
pRenderer->SaveTextureToDisk(EnvironmentMap::sBRDFIntegrationLUTTexture, BRDFLUTTextureFilePath, false);
}
// todo: we can unload shaders / render targets here
}
// Cubemap Skyboxes
//------------------------------------------------------------------------------------------------------------------------------------
{ // NIGHTSKY
// #AsyncLoad: Mutex DEVICE
const bool bEquirectangular = false;
const auto offsetIter = s_filePaths.begin() + ECubeMapPresets::NIGHT_SKY;
const FilePaths filePaths = FilePaths(offsetIter, offsetIter + 6);
TextureID skydomeTex = pRenderer->CreateCubemapFromFaceTextures(filePaths, false);
//Skybox::SetPreset(ECubeMapPresets::NIGHT_SKY, std::move(Skybox(pRenderer, skydomeTex, bEquirectangular)));
s_Presets[ECubeMapPresets::NIGHT_SKY] = Skybox(pRenderer, skydomeTex, bEquirectangular);
}
if (renderSettings.bEnableEnvironmentLighting)
{
// HDR / IBL - Equirectangular Skyboxes
//------------------------------------------------------------------------------------------------------------------------------------
//EnvironmentMap::Initialize(pRenderer);
const bool bEquirectangular = true;
EnvironmentMapFileNames files;
const std::vector<EEnvironmentMapPresets> presets =
{
EEnvironmentMapPresets::BARCELONA ,
EEnvironmentMapPresets::TROPICAL_BEACH,
EEnvironmentMapPresets::MILKYWAY ,
EEnvironmentMapPresets::TROPICAL_RUINS,
EEnvironmentMapPresets::WALK_OF_FAME
};
std::for_each(RANGE(presets), [&](auto preset)
{
const auto rootAndFilesPair = GetsIBLFiles(preset);
s_Presets[preset] = Skybox(pRenderer, bEquirectangular);
s_Presets[preset].Initialize(rootAndFilesPair.second, rootAndFilesPair.first);
});
}
}
void Skybox::InitializePresets_Async(Renderer* pRenderer, const Settings::Rendering& renderSettings)
{
EnvironmentMap::Initialize(pRenderer);
{
std::unique_lock<std::mutex> lck(Engine::mLoadRenderingMutex);
EnvironmentMap::LoadShaders();
}
{
std::unique_lock<std::mutex> lck(Engine::mLoadRenderingMutex);
Texture LUTTexture = EnvironmentMap::CreateBRDFIntegralLUTTexture();
EnvironmentMap::sBRDFIntegrationLUTTexture = LUTTexture._id;
}
// Cubemap Skyboxes
//------------------------------------------------------------------------------------------------------------------------------------
{ // NIGHTSKY
// #AsyncLoad: Mutex DEVICE
const bool bEquirectangular = false;
const auto offsetIter = s_filePaths.begin() + ECubeMapPresets::NIGHT_SKY;
const FilePaths filePaths = FilePaths(offsetIter, offsetIter + 6);
TextureID skydomeTex = -1;
{
std::unique_lock<std::mutex> lck(Engine::mLoadRenderingMutex);
skydomeTex = pRenderer->CreateCubemapFromFaceTextures(filePaths, false);
}
s_Presets[ECubeMapPresets::NIGHT_SKY] = Skybox(pRenderer, skydomeTex, bEquirectangular);
}
if (renderSettings.bEnableEnvironmentLighting)
{
// HDR / IBL - Equirectangular Skyboxes
//------------------------------------------------------------------------------------------------------------------------------------
//EnvironmentMap::Initialize(pRenderer);
const std::string sIBLDirectory = Renderer::sHDRTextureRoot + std::string("sIBL/");
const bool bEquirectangular = true;
EnvironmentMapFileNames files;
const std::vector<EEnvironmentMapPresets> presets =
{
EEnvironmentMapPresets::BARCELONA ,
EEnvironmentMapPresets::TROPICAL_BEACH,
EEnvironmentMapPresets::MILKYWAY ,
EEnvironmentMapPresets::TROPICAL_RUINS,
EEnvironmentMapPresets::WALK_OF_FAME
};
if (renderSettings.bPreLoadEnvironmentMaps)
{
std::for_each(RANGE(presets), [&](auto preset)
{
const auto rootAndFilesPair = GetsIBLFiles(preset);
{
s_Presets[preset] = Skybox(pRenderer, bEquirectangular);
s_Presets[preset].Initialize(rootAndFilesPair.second, rootAndFilesPair.first);
}
});
}
else
{
auto& preset = presets.back();
const auto rootAndFilesPair = GetsIBLFiles(preset);
{
s_Presets[preset] = Skybox(pRenderer, bEquirectangular);
s_Presets[preset].Initialize(rootAndFilesPair.second, rootAndFilesPair.first);
}
}
}
}