Method RenderGodRays

trinity/PostProcess/Tr2PostProcessRenderer.cpp:1146–1171

}

void Tr2PostProcessRenderer::RenderGodRays( const Tr2TextureAL& dest, const Tr2TextureAL& depth, Tr2GpuResourcePool& gpuResourcePool, Tr2RenderContext& renderContext, Tr2PPGodRaysEffect* godrays )
{
	GPU_REGION( renderContext, "Godrays" );
	renderContext.m_esm.ApplyStandardStates( Tr2EffectStateManager::RM_FULLSCREEN );

	// Downsample depth
	auto rt1 = DownSampleDepth( depth, gpuResourcePool, renderContext );

	// God rays
	auto rt2 = gpuResourcePool.GetTempTexture( "God rays", TextureSize2D( dest.GetDesc() ) * 0.5f, dest.GetFormat(), RENDER_TARGET );
	renderContext.m_esm.PushRenderTarget( rt2 );
	renderContext.Clear( Tr2RenderContextEnum::CLEARFLAGS_TARGET, 0, 0 ); // clear is needed because godray vertex shader can opt out of rendering

	m_godrayEffect->SetParameter( MEMOIZED_STRING( "Color" ), Vector4( godrays->m_godRayColor ) );
	m_godrayEffect->SetParameter( MEMOIZED_STRING( "Intensity" ), Vector4( godrays->m_intensity, 0.0f, 1.0f, 1.0f ) );
	m_godrayEffect->SetParameter( MEMOIZED_STRING( "grFactors" ), godrays->grFactors );
	m_godrayEffect->SetResourceTexture2D( MEMOIZED_STRING( "NoiseTexMap" ), godrays->m_noiseTexturePath.c_str() );
	TEMP_PARAM( m_godrayEffect, "DepthMap", rt1 );

	Tr2Renderer::DrawScreenQuad( renderContext, m_godrayEffect );
	renderContext.m_esm.PopRenderTarget();

	// Blit
	renderContext.m_esm.ApplyStandardStates( Tr2EffectStateManager::RM_ALPHA_ADDITIVE );
	DrawInto( dest, Tr2LoadAction::LOAD, rt2, renderContext );
}

void Tr2PostProcessRenderer::RenderSignalLoss( const Tr2TextureAL& dest, Tr2RenderContext& renderContext, Tr2PPSignalLossEffect* signalLoss )
{