BlueRoseNote/03-UnrealEngine/Rendering/RenderingPipeline/Lighting/RenderLights.md

title, date, excerpt, tags, rating

title	date	excerpt	tags	rating
RenderLights	2023-04-09 10:23:21			⭐

关键函数

取得所有ShadowMap的投影信息

const FVisibleLightInfo& VisibleLightInfo = VisibleLightInfos[LightSceneInfo->Id];  
const TArray<FProjectedShadowInfo*, SceneRenderingAllocator>& ShadowMaps = VisibleLightInfo.ShadowsToProject;  
for (int32 ShadowIndex = 0; ShadowIndex < ShadowMaps.Num(); ShadowIndex++)  
{  
   const FProjectedShadowInfo* ProjectedShadowInfo = ShadowMaps[ShadowIndex];
}

透明体积图元渲染

InjectSimpleTranslucencyLightingVolumeArray

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。

• InjectSimpleLightsTranslucentLighting
• InjectSimpleTranslucentLightArray

InjectTranslucencyLightingVolume

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。

• InjectTranslucencyLightingVolume

直接光照

RenderVirtualShadowMapProjectionMaskBits

• VirtualShadowMapProjectionMaskBits
• VirtualShadowMapProjection(RayCount:%u(%s),SamplesPerRay:%u,Input:%s%s)

输出到名为Shadow.Virtual.MaskBits与Shadow.Virtual.MaskBits(HairStrands)的UAV。

AddClusteredDeferredShadingPass

RenderSimpleLightsStandardDeferred

RenderLight

针对每个灯在ShadowProjectionOnOpaque渲染ShadowMask

• VirualShadowMapProjection
• CompositeVirtualShadowMapMask