Method RenderTaa

trinity/PostProcess/Tr2PostProcessRenderer.cpp:1435–1529

}

void Tr2PostProcessRenderer::RenderTaa( const Tr2TextureAL& dest, const Tr2TextureAL& velocity, const Tr2TextureAL& opaqueColor, Tr2GpuResourcePool& gpuResourcePool, Tr2RenderContext& renderContext, Tr2PPTaaEffect* taa, Tr2PPDynamicExposureEffect* dynamicExposure )
{
	GPU_REGION( renderContext, "TAA" );
	renderContext.m_esm.ApplyStandardStates( Tr2EffectStateManager::RM_FULLSCREEN );

	auto Clear = []( const Tr2TextureAL& tex, Tr2RenderContextAL& renderContext ) {
		renderContext.SetRenderTarget( tex, 0 );
		renderContext.Clear( Tr2RenderContextEnum::CLEARFLAGS_TARGET, 0, 1.0f );
	};
	auto ClearUav = []( const Tr2TextureAL& tex, Tr2RenderContextAL& renderContext ) {
		uint32_t zeroes[4] = {};
		renderContext.ClearUav( tex, 0, zeroes );
	};

	auto accumulationBuffer0 = gpuResourcePool.GetPersistentTexture(
		"TAA Accumulation 0",
		dest.GetWidth(),
		dest.GetHeight(),
		Tr2RenderContextEnum::PIXEL_FORMAT_R16G16B16A16_UNORM,
		Tr2GpuUsage::RENDER_TARGET | Tr2GpuUsage::SHADER_RESOURCE,
		Clear );
	auto accumulationBuffer1 = gpuResourcePool.GetPersistentTexture(
		"TAA Accumulation 1",
		dest.GetWidth(),
		dest.GetHeight(),
		Tr2RenderContextEnum::PIXEL_FORMAT_R16G16B16A16_UNORM,
		Tr2GpuUsage::RENDER_TARGET | Tr2GpuUsage::SHADER_RESOURCE,
		Clear );

	auto cooldownBuffer = gpuResourcePool.GetPersistentTexture(
		"TAA Cooldown",
		dest.GetWidth(),
		dest.GetHeight(),
		Tr2RenderContextEnum::PIXEL_FORMAT_R32_UINT,
		Tr2GpuUsage::UNORDERED_ACCESS | Tr2GpuUsage::SHADER_RESOURCE,
		ClearUav );


	Tr2TextureAL input;
	Tr2TextureAL output;

	uint32_t frame_count = m_taaFrameCounter++;
	if( ( frame_count & 1 ) == 0 )
	{
		input = accumulationBuffer0;
		output = accumulationBuffer1;
	}
	else
	{
		input = accumulationBuffer1;
		output = accumulationBuffer0;
	}


	Tr2EffectPtr effects[] = { m_taaEffect, m_taaCopyEffect };
	for( auto& effect : effects )
	{
		if( dynamicExposure )