diff --git a/01-Diary/周小结/2024.12.md b/01-Diary/周小结/2024.12.md
index 4a52e80..20eb3b5 100644
--- a/01-Diary/周小结/2024.12.md
+++ b/01-Diary/周小结/2024.12.md
@@ -31,4 +31,15 @@
 	- [x] BP07 才艺数据没有物理的问题。
 - [x] 乃琳道具耳朵的描边模型的物理与耳朵模型不匹配。=> 移除描边模型
 - [x] 飞行状态下，需要给贝拉的物理设置忽略RootMotion移动。=> 在罗导的Sequence中K后处理蓝图事件，来设置Ignore Component Transform
-- [ ] 添加LiveArea Name搜索功能。
\ No newline at end of file
+- [ ] 添加LiveArea Name搜索功能。
+
+
+# 场景迁移需求
+给天气系统添加新的配置与渲染功能参数调整。
+- 相关渲染功能
+	1. ExponentialHeightFog
+	2. SkyLight
+	3. Multi DirectionalLights
+		1. ~~固定时间？~~ 
+
+PS. SkyLight需要避免使用Cubemap，这个参数没办法插值。
\ No newline at end of file
diff --git a/03-UnrealEngine/Rendering/RenderingPipeline/Lighting/Shadow.md b/03-UnrealEngine/Rendering/RenderingPipeline/Lighting/Shadow.md
index f4cb4ac..28f7c01 100644
--- a/03-UnrealEngine/Rendering/RenderingPipeline/Lighting/Shadow.md
+++ b/03-UnrealEngine/Rendering/RenderingPipeline/Lighting/Shadow.md
@@ -203,10 +203,6 @@ void FSceneRenderer::InitDynamicShadows(FRHICommandListImmediate& RHICmdList, FG
 }
 ```
 
-
-
-
-
 # ShadowDepths
 渲染阴影深度贴图与图集。
 
@@ -442,7 +438,7 @@ bool FShadowDepthPassMeshProcessor::TryAddMeshBatch(const FMeshBatch& RESTRICT M
 
 ## ShaderDepthBias
 相关计算位于FProjectedShadowInfo::UpdateShaderDepthBias()。
-起效条件：勾选Dynamic Inset Shadow
+起效条件：勾选Dynamic Inset Shadow（bCastInsetShadow）或者勾选bSelfShadowOnly。（骨骼物体有额外的bCastCapsuleDirectShadow）
 CMD: CVarPerObjectDirectionalShadowDepthBias => r.Shadow.PerObjectDirectionalDepthBias 
 ```c++
 // per object shadows (the whole-scene are taken care of above)
@@ -463,6 +459,9 @@ if(bDirectionalLight)
 }
 ```
 
+### bCastInsetShadow
+bCastInsetShadow => PrimitiveProxy->CastsInsetShadow() => DoesPrimitiveCastInsetShadow() => FilterPrimitiveForShadows() => FGatherShadowPrimitivesPacket::AnyThreadTask() => FGatherShadowPrimitivesPrepareTask::DoTask()
+
 ## Shader
 VertexShader为：ShadowDepthVertexShader.usf，有4种变体：
 - IMPLEMENT_SHADOW_DEPTH_SHADERMODE_SHADERS(VertexShadowDepth_PerspectiveCorrect);