45 lines
1.4 KiB
Markdown
45 lines
1.4 KiB
Markdown
---
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title: RenderLights
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date: 2023-04-09 10:23:21
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excerpt:
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tags:
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rating: ⭐
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---
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# 关键函数
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取得所有ShadowMap的投影信息
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```c++
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const FVisibleLightInfo& VisibleLightInfo = VisibleLightInfos[LightSceneInfo->Id];
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const TArray<FProjectedShadowInfo*, SceneRenderingAllocator>& ShadowMaps = VisibleLightInfo.ShadowsToProject;
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for (int32 ShadowIndex = 0; ShadowIndex < ShadowMaps.Num(); ShadowIndex++)
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{
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const FProjectedShadowInfo* ProjectedShadowInfo = ShadowMaps[ShadowIndex];
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}
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```
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# 透明体积图元渲染
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## InjectSimpleTranslucencyLightingVolumeArray
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插入简单透明体积物体渲染。应该是根据3D贴图渲染体积效果。默认状态下不运行。
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- InjectSimpleLightsTranslucentLighting
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- InjectSimpleTranslucentLightArray
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## InjectTranslucencyLightingVolume
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在收集用于渲染透明体积的灯光代理信息后进行渲染，主要用于云的渲染。
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- InjectTranslucencyLightingVolume
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# 直接光照
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## RenderVirtualShadowMapProjectionMaskBits
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- VirtualShadowMapProjectionMaskBits
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- VirtualShadowMapProjection(RayCount:%u(%s),SamplesPerRay:%u,Input:%s%s)
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输出到名为`Shadow.Virtual.MaskBits`与`Shadow.Virtual.MaskBits(HairStrands)`的UAV。
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## AddClusteredDeferredShadingPass
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## RenderSimpleLightsStandardDeferred
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## RenderLight
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针对每个灯在ShadowProjectionOnOpaque渲染ShadowMask
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- VirualShadowMapProjection
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- CompositeVirtualShadowMapMask
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