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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 )
{
const bool bNeedsSeparateSubsurfaceLightAccumulation = UseSubsurfaceProfile(GBuffer.ShadingModelID);//判断是否需要SubsurfaceProfile计算
#if NON_DIRECTIONAL_DIRECT_LIGHTING
#if NON_DIRECTIONAL_DIRECT_LIGHTING // 非平行直接光
float Lighting;
if( LightData.bRectLight )
if( LightData.bRectLight )//面光源
{
FRect Rect = GetRect( ToLight, LightData );
Lighting = IntegrateLight( Rect );
}
else
else //点光源以及胶囊光源
{
FCapsuleLight Capsule = GetCapsule( ToLight, LightData );
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);
#else
FDirectLighting Lighting;
if (LightData.bRectLight)
if (LightData.bRectLight)//面光源
{
FRect Rect = GetRect( ToLight, LightData );
const FRectTexture SourceTexture = ConvertToRectTexture(LightData);
@ -665,7 +660,7 @@ FLightAccumulator AccumulateDynamicLighting(
Lighting = IntegrateBxDF( GBuffer, N, V, Rect, Shadow, SourceTexture);
#endif
}
else
else //点光源以及胶囊光源
{
FCapsuleLight Capsule = GetCapsule( ToLight, LightData );