vault backup: 2024-11-26 18:16:19

02-Note/ASoul/引擎相关.md

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+# 编译
+1. 需要安装CUDA Toolkit 11.8。
+2. 添加系统变量，CUDA_PATH。数值为： "C:/Program Files/NVIDIA GPU Computing Toolkit/CUDA/v11.8";
+3. 生成解决方案后，
+
+
+# 移植到官方引擎
+1. 替换修改的引擎usf文件。
+2. 移除PostProcessTonemap.usf中的修改部分。
+	1. `tonemapping那里多加了一张图，从c++加的`
+
+```hlsl
+void MainPS(
+	in noperspective float2 UV : TEXCOORD0,
+	in noperspective float2 InVignette : TEXCOORD1,
+	in noperspective float4 GrainUV : TEXCOORD2,
+	in noperspective float2 ScreenPos : TEXCOORD3,
+	in noperspective float2 FullViewUV : TEXCOORD4,
+	float4 SvPosition : SV_POSITION,		// after all interpolators
+	out float4 OutColor : SV_Target0
+#if OUTPUT_LUMINANCE
+	, out float OutLuminance: SV_Target1
+#endif
+	)
+{
+	float Luminance;
+	FGBufferData SamplerBuffer = GetGBufferData(UV * View.ResolutionFractionAndInv.x, false);
+	if (SamplerBuffer.CustomStencil > 1.0f && abs(SamplerBuffer.CustomDepth - SamplerBuffer.Depth) < 1)
+	{
+		OutColor = SampleSceneColor(UV);
+	}
+	else
+	{
+    	OutColor = TonemapCommonPS(UV, InVignette, GrainUV, ScreenPos, FullViewUV, SvPosition, Luminance);
+    }
+#if OUTPUT_LUMINANCE
+	OutLuminance = Luminance;
+#endif
+}
+```
+还原成原本样式：
+```
+void MainPS(
+	in noperspective float2 UV : TEXCOORD0,
+	in noperspective float2 InVignette : TEXCOORD1,
+	in noperspective float4 GrainUV : TEXCOORD2,
+	in noperspective float2 ScreenPos : TEXCOORD3,
+	in noperspective float2 FullViewUV : TEXCOORD4,
+	float4 SvPosition : SV_POSITION,		// after all interpolators
+	out float4 OutColor : SV_Target0
+#if OUTPUT_LUMINANCE
+	, out float OutLuminance: SV_Target1
+#endif
+	)
+{
+	float Luminance;
+	FGBufferData SamplerBuffer = GetGBufferData(UV * View.ResolutionFractionAndInv.x, false);
+	OutColor = TonemapCommonPS(UV, InVignette, GrainUV, ScreenPos, FullViewUV, SvPosition, Luminance);
+#if OUTPUT_LUMINANCE
+	OutLuminance = Luminance;
+#endif
+}
+```