vault backup: 2025-06-14 17:20:30

.obsidian/plugins/various-complements/histories.json

@@ -1 +1 @@
-{"BlueprintCosmetic":{"BlueprintCosmetic":{"internalLink":{"count":1,"lastUpdated":1741951657866}}},"ReflectionsColor":{"ReflectionsColor":{"currentFile":{"count":1,"lastUpdated":1742739458164}}},"主要执行了：":{"主要执行了：":{"currentFile":{"count":1,"lastUpdated":1742830096172}}},"尝试平滑Lumen中的SH。":{"尝试平滑Lumen中的SH。":{"currentFile":{"count":1,"lastUpdated":1742910977705}}},"SupportDynamicSliderMinValue":{"SupportDynamicSliderMinValue":{"internalLink":{"count":1,"lastUpdated":1743066829865}}},"4DGaussians":{"4DGaussians":{"internalLink":{"count":1,"lastUpdated":1743173207988}}},"DMX灯光优化：":{"DMX灯光优化：":{"currentFile":{"count":1,"lastUpdated":1743327201208}}},"Addtivte":{"Addtivte":{"currentFile":{"count":1,"lastUpdated":1743329217204}}},"Dual-Ego":{"Dual-Ego":{"currentFile":{"count":1,"lastUpdated":1743338268824}}},"Merge、":{"Merge、":{"currentFile":{"count":1,"lastUpdated":1743339455484}}},"Nightglow":{"Nightglow":{"currentFile":{"count":1,"lastUpdated":1743341217248}}},"Nanite":{"Nanite":{"currentFile":{"count":1,"lastUpdated":1743344181589}}},"另一个位更加偏向于虚拟偶像直播，主要负责：":{"另一个位更加偏向于虚拟偶像直播，主要负责：":{"currentFile":{"count":1,"lastUpdated":1743396187936}}},"角色换装&道具：":{"角色换装&道具：":{"currentFile":{"count":1,"lastUpdated":1743405142805}}},"Dynamics），主要用于模拟布料以及刚体（头发）。":{"Dynamics），主要用于模拟布料以及刚体（头发）。":{"currentFile":{"count":1,"lastUpdated":1743413286078}}},"主要解决了：":{"主要解决了：":{"currentFile":{"count":1,"lastUpdated":1743413294305}}},"日常问题解决":{"日常问题解决":{"currentFile":{"count":1,"lastUpdated":1743426012684}}},"每章节解锁新的解谜道具增加了可玩性深度：":{"每章节解锁新的解谜道具增加了可玩性深度：":{"currentFile":{"count":1,"lastUpdated":1743665897310}}},"之后，这部分抓取参考场景的颜色值，将它们转换为参考显示。":{"之后，这部分抓取参考场景的颜色值，将它们转换为参考显示。":{"currentFile":{"count":1,"lastUpdated":1744380033457}}}}
+{"AsyncCompute":{"AsyncCompute":{"currentFile":{"count":1,"lastUpdated":1749890609632}}}}

03-UnrealEngine/Rendering/Debug/RDG Debug笔记.md

@@ -0,0 +1,154 @@
+---
+title: RDG Debug笔记
+date: 2025-06-14 15:44:47
+excerpt: 
+tags: 
+rating: ⭐
+---
+# 前言
+- [UE5 Render Dependency Graph-实用指南](https://zhuanlan.zhihu.com/p/637889120)
+
+# Command
+- r.rdg
+	- AsyncCompute 
+	- BreakPoint
+
+## Reference
+```c++
+FAutoConsoleVariableRef CVarRDGDebug(  
+    TEXT("r.RDG.Debug"),  
+    GRDGDebug,  
+    TEXT("Allow to output warnings for inefficiencies found during wiring and execution of the passes.\n")  
+    TEXT(" 0: disabled;\n")  
+    TEXT(" 1: emit warning once (default);\n")  
+    TEXT(" 2: emit warning everytime issue is detected."),  
+    ECVF_RenderThreadSafe);
+    
+FAutoConsoleVariableRef CVarRDGClobberResources(  
+    TEXT("r.RDG.ClobberResources"),  
+    GRDGClobberResources,  
+    TEXT("Clears all render targets and texture / buffer UAVs with the requested clear color at allocation time. Useful for debugging.\n")  
+    TEXT(" 0:off (default);\n")  
+    TEXT(" 1: 1000 on RGBA channels;\n")  
+    TEXT(" 2: NaN on RGBA channels;\n")  
+    TEXT(" 3: +INFINITY on RGBA channels.\n"),  
+    ECVF_Cheat | ECVF_RenderThreadSafe);
+    
+FAutoConsoleVariableRef CVarRDGOverlapUAVs(  
+    TEXT("r.RDG.OverlapUAVs"), GRDGOverlapUAVs,  
+    TEXT("RDG will overlap UAV work when requested; if disabled, UAV barriers are always inserted."),  
+    ECVF_RenderThreadSafe);
+    
+FAutoConsoleVariableRef CVarRDGTransitionLog(  
+    TEXT("r.RDG.TransitionLog"), GRDGTransitionLog,  
+    TEXT("Logs resource transitions to the console.\n")  
+    TEXT(" 0: disabled(default);\n")  
+    TEXT(">0: enabled for N frames;\n")  
+    TEXT("<0: enabled;\n"),  
+    ECVF_RenderThreadSafe);
+    
+TAutoConsoleVariable<FString> CVarRDGDebugPassFilter(  
+    TEXT("r.RDG.Debug.PassFilter"), TEXT(""),  
+    TEXT("Filters certain debug events to specific passes. Set to 'None' to reset.\n"),  
+    ECVF_Default);
+    
+TAutoConsoleVariable<FString> CVarRDGDebugResourceFilter(  
+    TEXT("r.RDG.Debug.ResourceFilter"), TEXT(""),  
+    TEXT("Filters certain debug events to a specific resource. Set to 'None' to reset.\n"),  
+    ECVF_Default);
+
+FAutoConsoleVariableRef CVarRDGParallelSetup(  
+    TEXT("r.RDG.ParallelSetup"), GRDGParallelSetup,  
+    TEXT("RDG will setup passes in parallel when prompted by calls to FRDGBuilder::FlushSetupQueue.")  
+    TEXT(" 0: pass setup is done synchronously in AddPass;")  
+    TEXT(" 1: pass setup is done asynchronously (default);"),  
+    ECVF_RenderThreadSafe);
+```
+
+# Visualize Texture Integration
+**vis**  
+使用vis指令，可以打印vis指令帮助信息，以及当前帧使用到的所有的资源信息
+
+![[RDG_Vis.jpg|1200]]
+
+**vis [RT Name]**  
+使用vis [RT Name]可以实时预览当前RT的内容，在调试渲染特性的时候可以很方便的Debug
+
+![[RDG_Vis_RTName.jpg|800]]
+
+**vis [RT Name] bump**  
+打印当前RT到Saved/Screenshots  
+  
+**vis off**  
+关闭当前帧的debug模式
+
+# r.RDG.ImmediateMode
+将RDG设置成理解执行模式，方便进行资源绑定Debug以及断点。
+- RDG立即执行模式:
+	- 立刻执行Pass在其被添加的时候
+	- 产生和延后执行时一样的功能
+	- 如果打断点，会非常容易检查其创建的代码
+	- 由于这个原因，所以不能在AddPass后再去更改Pass参数
+	- 可以利用r.RDG.ImmediateMode在运行时切换
+	- 会消耗更多的内存，可以考虑使用r.Test.SecondaryUpscaleOverride运行在低分辨率下。（r.Test.SecondaryUpscaleOverride 设置的参数越大越模糊）
+
+![[RDG_Immediate.png|800]]
+
+- **r.RDG.ImmediateMode 1** / -rdgimmediate : 去除RDG的影响  
+- **r.RHICmdBypass 1** ：去除RHI和并行渲染的影响
+- r.RDG.ParallelExecute=0
+- r.RDG.ParallelSetup=0
+
+## RDG Async Compute
+1.直接设置ComputePassFlags为ERDGPassFlags::AsyncCompute，剩下的工作交给RDG自动判断和设置
+```c++
+ERDGPassFlags ComputePassFlags = (GSupportsEfficientAsyncCompute && CVarTSRAsyncCompute.GetValueOnRenderThread() != 0) ? ERDGPassFlags::AsyncCompute : ERDGPassFlags::Compute;
+
+TShaderMapRef<FTSRClearPrevTexturesCS> ComputeShader(View.ShaderMap);
+                FComputeShaderUtils::AddPass(
+                        GraphBuilder,
+                        RDG_EVENT_NAME("TSR ClearPrevTextures %dx%d", InputRect.Width(), InputRect.Height()),
+                        ComputePassFlags,
+                        ComputeShader,
+                        PassParameters,
+                        FComputeShaderUtils::GetGroupCount(InputRect.Size(), 8 * 2));
+```
+
+2.在Render层调整Pass顺序，为RDG提供更多Async Compute Overlap的可能性
+
+# ValidateShaderParameters
+ValidateShaderParameters()可以检测RDG绑定的资源是否都存在。
+
+# -rdgdebug
+`r.RDG.Debug = 1`来开启。
+
+# RDG Insight
+开启RDG Insight Plugin之后即可在UnrealInsight看到额外添加RDG Channel。
+
+命令行启动游戏：  
+`Game.exe -trace=rdg,defaults`
+
+# DumpGPU
+使用DumpGPU指令可以将当前帧的所有Pass和资源信息打印，可以很方便的进行查看。  
+在Console中输入DumpGPU指令，会弹出生成好的html文件：  
+
+![](https://pica.zhimg.com/v2-675aa8a985ccd280ef78e7578d509f16_1440w.jpg)
+
+  
+执行OpenGPUDumpViewer.bat打开网页，默认只支持chrome浏览器，可以通过修改脚本调用别的浏览器：
+![](https://pic1.zhimg.com/v2-2fb3021428caca29b8c41b2cb01a0f26_1440w.jpg)
+
+  
+可以看到各个Pass的信息：  
+
+![](https://pic1.zhimg.com/v2-3732fc0379732e15eaf15d341b08586c_1440w.jpg)
+
+  
+显示当前帧所有CVar的值：  
+
+![](https://pica.zhimg.com/v2-79ba2f962e6167dfec0f88f08ac3c2aa_1440w.jpg)
+
+  
+比较像素的值：  
+
+![](https://picx.zhimg.com/v2-16e264f19d4c0d98b3942fb485115ecf_1440w.jpg)