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Optimize reflections combine with depth bounds test

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This commit is contained in:
Wojtek Figat
2026-01-20 22:41:59 +01:00
parent d7458d81a5
commit 66a295d5af
2 changed files with 17 additions and 12 deletions
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17
Source/Engine/Renderer/ReflectionsPass.cpp
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@@ -215,6 +215,11 @@ bool ReflectionsPass::setupResources()
{
psDesc.BlendMode = BlendingMode::Add;
psDesc.BlendMode.RenderTargetWriteMask = BlendingMode::ColorWrite::RGB;
if (_depthBounds)
{
psDesc.DepthEnable = psDesc.DepthBoundsEnable = true;
psDesc.DepthWriteEnable = false;
}
psDesc.PS = shader->GetPS("PS_CombinePass");
if (_psCombinePass->Init(psDesc))
return true;
@@ -374,7 +379,7 @@ void ReflectionsPass::Render(RenderContext& renderContext, GPUTextureView* light
context->BindSR(0, renderContext.Buffers->GBuffer0);
context->BindSR(1, renderContext.Buffers->GBuffer1);
context->BindSR(2, renderContext.Buffers->GBuffer2);
context->BindSR(3, renderContext.Buffers->DepthBuffer);
context->BindSR(3, depthBufferSRV);
context->SetViewportAndScissors(renderContext.Task->GetViewport());
}
@@ -406,7 +411,13 @@ void ReflectionsPass::Render(RenderContext& renderContext, GPUTextureView* light
else
{
// Combine reflections and light buffer (additive mode)
context->SetRenderTarget(lightBuffer);
if (_depthBounds)
{
context->SetRenderTarget(depthBufferRTV, lightBuffer);
context->SetDepthBounds(0, RenderTools::DepthBoundMaxBackground);
}
else
context->SetRenderTarget(lightBuffer);
context->BindCB(0, cb);
if (probesCount == 0 || !renderProbes)
context->UpdateCB(cb, &data);
@@ -415,6 +426,8 @@ void ReflectionsPass::Render(RenderContext& renderContext, GPUTextureView* light
context->BindSR(7, ssrBuffer);
context->SetState(_psCombinePass);
context->DrawFullscreenTriangle();
if (_depthBounds)
context->SetDepthBounds(0, 1);
}
RenderTargetPool::Release(ssrBuffer);

12
Source/Engine/Renderer/ScreenSpaceReflectionsPass.cpp
View File

@@ -62,9 +62,7 @@ bool ScreenSpaceReflectionsPass::Init()
_shader = Content::LoadAsyncInternal<Shader>(TEXT("Shaders/SSR"));
_preIntegratedGF = Content::LoadAsyncInternal<Texture>(PRE_INTEGRATED_GF_ASSET_NAME);
if (_shader == nullptr || _preIntegratedGF == nullptr)
{
return true;
}
#if COMPILE_WITH_DEV_ENV
_shader.Get()->OnReloading.Bind<ScreenSpaceReflectionsPass, &ScreenSpaceReflectionsPass::OnShaderReloading>(this);
#endif
@@ -248,13 +246,7 @@ GPUTexture* ScreenSpaceReflectionsPass::Render(RenderContext& renderContext, GPU
}
// Check if resize depth
GPUTexture* originalDepthBuffer = buffers->DepthBuffer;
GPUTexture* smallerDepthBuffer = originalDepthBuffer;
if (settings.DepthResolution != ResolutionMode::Full)
{
// Smaller depth buffer improves ray tracing performance
smallerDepthBuffer = buffers->RequestHalfResDepth(context);
}
GPUTexture* depthBufferTrace = settings.DepthResolution == ResolutionMode::Half ? buffers->RequestHalfResDepth(context) : buffers->DepthBuffer;
// Prepare constants
context->UpdateCB(cb, &data);
@@ -264,7 +256,7 @@ GPUTexture* ScreenSpaceReflectionsPass::Render(RenderContext& renderContext, GPU
context->BindSR(0, buffers->GBuffer0);
context->BindSR(1, buffers->GBuffer1);
context->BindSR(2, buffers->GBuffer2);
context->BindSR(3, smallerDepthBuffer);
context->BindSR(3, depthBufferTrace);
// Combine pass
context->BindSR(TEXTURE0, lightBuffer);