From e7d2b29cb2f6b1c9fd8ef35a90c7f2eb26e93cd8 Mon Sep 17 00:00:00 2001
From: BlueRose <378100977@qq.com>
Date: Tue, 4 Mar 2025 22:13:10 +0800
Subject: [PATCH] vault backup: 2025-03-04 22:13:10

---
 .../渲染功能/PostProcess/ToonPostProcess.md   | 26 +++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/03-UnrealEngine/卡通渲染相关资料/渲染功能/PostProcess/ToonPostProcess.md b/03-UnrealEngine/卡通渲染相关资料/渲染功能/PostProcess/ToonPostProcess.md
index 0b59b1a..d3b6047 100644
--- a/03-UnrealEngine/卡通渲染相关资料/渲染功能/PostProcess/ToonPostProcess.md
+++ b/03-UnrealEngine/卡通渲染相关资料/渲染功能/PostProcess/ToonPostProcess.md
@@ -393,4 +393,30 @@ FScreenPassTextureSlice SceneColorSlice = FScreenPassTextureSlice::CreateFromScr
 将渲染结果转换成`FScreenPassTextureSlice`:
 ```c++
 SceneColorSlice = FScreenPassTextureSlice::CreateFromScreenPassTexture(GraphBuilder, AddToonPostProcessBeforeTonemappingPass(GraphBuilder, View, PassInputs));
+```
+
+```c++
+// Allows for the scene color to be the slice of an array between temporal upscaler and tonemaper.  
+FScreenPassTextureSlice SceneColorSlice = FScreenPassTextureSlice::CreateFromScreenPassTexture(GraphBuilder, SceneColor);
+```
+##  Viewport => TextureUV
+```c++
+PassParameters->SvPositionToInputTextureUV = (  
+	FScreenTransform::SvPositionToViewportUV(Output.ViewRect) *  
+	FScreenTransform::ChangeTextureBasisFromTo(FScreenPassTextureViewport(Inputs.SceneColorSlice), FScreenTransform::ETextureBasis::ViewportUV, FScreenTransform::ETextureBasis::TextureUV));
+```
+
+在Shader中：
+```c++
+Texture2D SceneColorTexture;
+SamplerState SceneColorSampler;
+FScreenTransform SvPositionToInputTextureUV;
+
+void MainPS(  
+    float4 SvPosition : SV_POSITION,  
+    out float4 OutColor : SV_Target0)  
+{  
+    float2 SceneColorUV = ApplyScreenTransform(SvPosition.xy, SvPositionToInputTextureUV);
+	OutColor.rgba = SceneColorTexture.SampleLevel(SceneColorSampler, UV, 0).rgba;    
+}
 ```
\ No newline at end of file