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BlueRose 2025-02-13 17:57:50 +08:00
parent bbb24c48d0
commit 8025c73f1e
1 changed files with 6 additions and 11 deletions
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17
03-UnrealEngine/Rendering/RenderingPipeline/Lighting/Lighting.md
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@ -632,29 +632,24 @@ FLightAccumulator AccumulateDynamicLighting(
if( Shadow.SurfaceShadow + Shadow.TransmissionShadow > 0 ) if( Shadow.SurfaceShadow + Shadow.TransmissionShadow > 0 )
{ {
const bool bNeedsSeparateSubsurfaceLightAccumulation = UseSubsurfaceProfile(GBuffer.ShadingModelID);//判断是否需要SubsurfaceProfile计算 const bool bNeedsSeparateSubsurfaceLightAccumulation = UseSubsurfaceProfile(GBuffer.ShadingModelID);//判断是否需要SubsurfaceProfile计算
#if NON_DIRECTIONAL_DIRECT_LIGHTING // 非平行直接光
#if NON_DIRECTIONAL_DIRECT_LIGHTING
float Lighting; float Lighting;
if( LightData.bRectLight )//面光源
if( LightData.bRectLight )
{ {
FRect Rect = GetRect( ToLight, LightData ); FRect Rect = GetRect( ToLight, LightData );
Lighting = IntegrateLight( Rect ); Lighting = IntegrateLight( Rect );
} }
else else //点光源以及胶囊光源
{ {
FCapsuleLight Capsule = GetCapsule( ToLight, LightData ); FCapsuleLight Capsule = GetCapsule( ToLight, LightData );
Lighting = IntegrateLight( Capsule, LightData.bInverseSquared ); Lighting = IntegrateLight( Capsule, LightData.bInverseSquared );
} }
float3 LightingDiffuse = Diffuse_Lambert( GBuffer.DiffuseColor ) * Lighting; float3 LightingDiffuse = Diffuse_Lambert( GBuffer.DiffuseColor ) * Lighting;//Lambert照明 * 积分结果
LightAccumulator_AddSplit(LightAccumulator, LightingDiffuse, 0.0f, 0, MaskedLightColor * Shadow.SurfaceShadow, bNeedsSeparateSubsurfaceLightAccumulation); LightAccumulator_AddSplit(LightAccumulator, LightingDiffuse, 0.0f, 0, MaskedLightColor * Shadow.SurfaceShadow, bNeedsSeparateSubsurfaceLightAccumulation);
#else #else
FDirectLighting Lighting; FDirectLighting Lighting;
if (LightData.bRectLight)//面光源
if (LightData.bRectLight)
{ {
FRect Rect = GetRect( ToLight, LightData ); FRect Rect = GetRect( ToLight, LightData );
const FRectTexture SourceTexture = ConvertToRectTexture(LightData); const FRectTexture SourceTexture = ConvertToRectTexture(LightData);
@ -665,7 +660,7 @@ FLightAccumulator AccumulateDynamicLighting(
Lighting = IntegrateBxDF( GBuffer, N, V, Rect, Shadow, SourceTexture); Lighting = IntegrateBxDF( GBuffer, N, V, Rect, Shadow, SourceTexture);
#endif #endif
} }
else else //点光源以及胶囊光源
{ {
FCapsuleLight Capsule = GetCapsule( ToLight, LightData ); FCapsuleLight Capsule = GetCapsule( ToLight, LightData );