From 8025c73f1ee0f4ccf19c659c84218fbfd070012d Mon Sep 17 00:00:00 2001
From: BlueRose <378100977@qq.com>
Date: Thu, 13 Feb 2025 17:57:50 +0800
Subject: [PATCH] vault backup: 2025-02-13 17:57:50

---
 .../RenderingPipeline/Lighting/Lighting.md      | 17 ++++++-----------
 1 file changed, 6 insertions(+), 11 deletions(-)

diff --git a/03-UnrealEngine/Rendering/RenderingPipeline/Lighting/Lighting.md b/03-UnrealEngine/Rendering/RenderingPipeline/Lighting/Lighting.md
index a9479b1..fd7df00 100644
--- a/03-UnrealEngine/Rendering/RenderingPipeline/Lighting/Lighting.md
+++ b/03-UnrealEngine/Rendering/RenderingPipeline/Lighting/Lighting.md
@@ -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 );