vault backup: 2024-02-28 17:33:14

03-UnrealEngine/Rendering/RenderingPipeline/UE4 BasePassPixelShader.usf学习笔记.md

@@ -111,3 +111,61 @@ const float3 WaterDiffuseIndirectIlluminance = DiffuseIndirectLighting * PI;// D
 8. Out.MRT[0].rgb  *= ViewPreExposure;
 
 ### 1553：FinalizeVirtualTextureFeedback
+
+# UE5
+
+## Lumen相关
+- GetSkyLighting()
+	- Lumen
+		- GetTranslucencyGIVolumeLighting()
+	- SkyLighting
+		- GetEffectiveSkySHDiffuse()
+			- GetVolumetricLightmapSkyBentNormal()
+			- GetSkyBentNormalAndOcclusion()
+
+**GetSkyLighting()** 演示了采样SkyLight与Lumen的方法。
+
+### SkyLighting
+GetEffectiveSkySHDiffuse()是一个宏，会根据平台指向下面2个函数：
+```c++
+/**   
+ * Computes sky diffuse lighting from the SH irradiance map.    
+ * This has the SH basis evaluation and diffuse convolution weights combined for minimal ALU's - see "Stupid Spherical Harmonics (SH) Tricks"   
+ */  
+float3 GetSkySHDiffuse(float3 Normal)  
+{  
+    float4 NormalVector = float4(Normal, 1.0f);   
+    float3 Intermediate0, Intermediate1, Intermediate2;  
+    Intermediate0.x = dot(SkyIrradianceEnvironmentMap[0], NormalVector);  
+    Intermediate0.y = dot(SkyIrradianceEnvironmentMap[1], NormalVector);  
+    Intermediate0.z = dot(SkyIrradianceEnvironmentMap[2], NormalVector);  
+  
+    float4 vB = NormalVector.xyzz * NormalVector.yzzx;  
+    Intermediate1.x = dot(SkyIrradianceEnvironmentMap[3], vB);  
+    Intermediate1.y = dot(SkyIrradianceEnvironmentMap[4], vB);  
+    Intermediate1.z = dot(SkyIrradianceEnvironmentMap[5], vB);  
+  
+    float vC = NormalVector.x * NormalVector.x - NormalVector.y * NormalVector.y;  
+    Intermediate2 = SkyIrradianceEnvironmentMap[6].xyz * vC;  
+  
+    // max to not get negative colors  
+    return max(0, Intermediate0 + Intermediate1 + Intermediate2);  
+}  
+  
+/**  
+* Computes sky diffuse lighting from the SH irradiance map.  
+* This has the SH basis evaluation and diffuse convolution weights combined for minimal ALU's - see "Stupid Spherical Harmonics (SH) Tricks"  
+* Only does the first 3 components for speed.  
+*/  
+float3 GetSkySHDiffuseSimple(float3 Normal)  
+{  
+    float4 NormalVector = float4(Normal, 1);  
+  
+    float3 Intermediate0;  
+    Intermediate0.x = dot(SkyIrradianceEnvironmentMap[0], NormalVector);  
+    Intermediate0.y = dot(SkyIrradianceEnvironmentMap[1], NormalVector);  
+    Intermediate0.z = dot(SkyIrradianceEnvironmentMap[2], NormalVector);        
+    // max to not get negative colors  
+    return max(0, Intermediate0);  
+}
+```

07-Other/生活/装修相关.md

@@ -23,6 +23,9 @@
 	- 轻松解决卫生间的潮湿异味💩暗卫必看！: https://www.bilibili.com/video/BV14K411M7u2/?share_source=copy_web&vd_source=fe8142e8e12816535feaeabd6f6cdc8e&t=79
 	- 卫生间的门需要安装百叶或者下面留缝，不然换气扇抽不动。
 	- 关闭马桶盖再冲厕所。
+- 布线&WiFi
+	- https://www.bilibili.com/video/BV1RB4y1j7wK/?p=5&spm_id_from=pageDriver
+	- 使用Wifi Man APP测试WiFi信号强度。（还有OpenSpeedTest、SpeedTest、全球网测）
 - 衣柜
 	- 砌墙衣柜好处与施工事项:https://www.bilibili.com/video/BV1wY4y197q5/?spm_id_from=333.788&vd_source=d47c0bb42f9c72fd7d74562185cee290
 	- 砌墙衣柜。可以自由改变格局，可以放入更多的东西。
@@ -61,4 +64,6 @@
 	- 最好要接入的电器：空气净化器、加湿器、智能浴霸、晾衣架。
 	- 智能家居装修时需要注意：
 		- 灯光设计
-		- 布线与电位（主路由网线需要有来回，尽可能多留网口、开关盒留零线、多留插座)
+		- 布线与电位（主路由网线需要有来回，尽可能多留网口、开关盒留零线、多留插座)
+- 烘干机
+	- 海尔、美的