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03-UnrealEngine/卡通渲染相关资料/渲染功能/ToonPostLightingPass/OutlinePass.md
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@ -5,7 +5,7 @@ excerpt:
tags:
rating: ⭐
---
PostProcesss
```c++
void AddPostProcessingPasses(
FRDGBuilder& GraphBuilder,
@ -45,13 +45,67 @@ FLumenSceneFrameTemporaries& LumenFrameTemporaries,
const FTranslucencyPassResources& PostMotionBlurTranslucencyResources = Inputs.TranslucencyViewResourcesMap.Get(ETranslucencyPass::TPT_TranslucencyAfterMotionBlur);
```
# BasePass
```c++
#if WITH_EDITOR
if (ViewFamily.EngineShowFlags.Wireframe)
{
checkf(ExclusiveDepthStencil.IsDepthWrite(), TEXT("Wireframe base pass requires depth-write, but it is set to read-only."));
BasePassTextureCount = 1;
BasePassTextures[0] = SceneTextures.EditorPrimitiveColor;
BasePassTexturesView = MakeArrayView(BasePassTextures.GetData(), BasePassTextureCount);
BasePassDepthTexture = SceneTextures.EditorPrimitiveDepth;
auto* PassParameters = GraphBuilder.AllocParameters<FRenderTargetParameters>();
PassParameters->RenderTargets = GetRenderTargetBindings(ERenderTargetLoadAction::EClear, BasePassTexturesView);
PassParameters->RenderTargets.DepthStencil = FDepthStencilBinding(BasePassDepthTexture, ERenderTargetLoadAction::EClear, ERenderTargetLoadAction::EClear, ExclusiveDepthStencil);
GraphBuilder.AddPass(RDG_EVENT_NAME("WireframeClear"), PassParameters, ERDGPassFlags::Raster, [](FRHICommandList&) {});
}
#endif
// Render targets bindings should remain constant at this point.
FRenderTargetBindingSlots BasePassRenderTargets = GetRenderTargetBindings(ERenderTargetLoadAction::ELoad, BasePassTexturesView);
BasePassRenderTargets.DepthStencil = FDepthStencilBinding(BasePassDepthTexture, ERenderTargetLoadAction::ELoad, ERenderTargetLoadAction::ELoad, ExclusiveDepthStencil);
FForwardBasePassTextures ForwardBasePassTextures{};
if (bForwardShadingEnabled)
{
ForwardBasePassTextures.SceneDepthIfResolved = SceneTextures.Depth.IsSeparate() ? SceneTextures.Depth.Resolve : nullptr;
ForwardBasePassTextures.ScreenSpaceAO = SceneTextures.ScreenSpaceAO;
ForwardBasePassTextures.ScreenSpaceShadowMask = ForwardShadowMaskTexture;
}
else if (!ExclusiveDepthStencil.IsDepthWrite())
{
// If depth write is not enabled, we can bound the depth texture as read only
ForwardBasePassTextures.SceneDepthIfResolved = SceneTextures.Depth.Resolve;
}
ForwardBasePassTextures.bIs24BitUnormDepthStencil = ForwardBasePassTextures.SceneDepthIfResolved ? GPixelFormats[ForwardBasePassTextures.SceneDepthIfResolved->Desc.Format].bIs24BitUnormDepthStencil : 1;
GraphBuilder.SetCommandListStat(GET_STATID(STAT_CLM_BasePass));
RenderBasePassInternal(GraphBuilder, SceneTextures, BasePassRenderTargets, BasePassDepthStencilAccess, ForwardBasePassTextures, DBufferTextures, bDoParallelBasePass, bRenderLightmapDensity, InstanceCullingManager, bNaniteEnabled, NaniteRasterResults);
GraphBuilder.SetCommandListStat(GET_STATID(STAT_CLM_AfterBasePass));
FRenderTargetBindingSlots BasePassRenderTargets = GetRenderTargetBindings(ERenderTargetLoadAction::ELoad, BasePassTexturesView);
BasePassRenderTargets.DepthStencil = FDepthStencilBinding(BasePassDepthTexture, ERenderTargetLoadAction::ELoad, ERenderTargetLoadAction::ELoad, ExclusiveDepthStencil);
RenderBasePassInternal(GraphBuilder, SceneTextures, BasePassRenderTargets, BasePassDepthStencilAccess, ForwardBasePassTextures, DBufferTextures, bDoParallelBasePass, bRenderLightmapDensity, InstanceCullingManager, bNaniteEnabled, NaniteRasterResults);
```
## 读取GBufferTexture
位于SceneRendering.h
```c++
FORCEINLINE FSceneTextures& GetActiveSceneTextures() { return ViewFamily.GetSceneTextures(); }
```
FSceneTextures& SceneTextures = GetActiveSceneTextures();
考虑使用形参
- const FSceneTextures* SceneTextures
- const FSceneTextures& SceneTextures
- FSceneTextures& SceneTextures
# OutlinePass
```