Merge remote-tracking branch 'origin/master'

03-UnrealEngine/Gameplay/GAS/其他社区文章.md

@@ -0,0 +1,8 @@
+---
+title: Untitled
+date: 2025-07-25 15:39:41
+excerpt: 
+tags: 
+rating: ⭐
+---
+- UE4/UE5 GAS共享冷却插件(SharedCoolingAbility) https://zhuanlan.zhihu.com/p/32216887423

03-UnrealEngine/Gameplay/Lyra/UE5 Lyra学习笔记(7)—CommonLoadingScreen.md

@@ -0,0 +1,35 @@
+---
+title: Untitled
+date: 2025-07-25 14:49:41
+excerpt: 
+tags: 
+rating: ⭐
+---
+# 相关CVar参数
+- CommonLoadingScreen.AlwaysShow：总是显示
+- CommonLoadingScreen.LogLoadingScreenReasonEveryFrame
+- CommonLoadingScreen.HoldLoadingScreenAdditionalSecs：载入完成后的等待时间。
+
+# 相关逻辑
+- ***ULoadingScreenManager***：核心逻辑。
+- UCommonLoadingScreenSettings：各种设置参数。
+- ULoadingProcessTask：继承ILoadingProcessInterface接口，只需覆盖ShouldShowLoadingScreen()。
+- FCommonStartupLoadingScreenModule：StartupModule()、FPreLoadScreenManager::OnPreLoadScreenManagerCleanUp()绑定OnPreLoadScreenManagerCleanUp()。
+- SCommonPreLoadingScreenWidget：LoadingScreen Slate控件。
+
+## ULoadingScreenManager(UGameInstanceSubsystem)
+- Initialize()：绑定PreLoadMapWithContext与PostLoadMapWithWorld委托。
+- Deinitialize()：移除BlockInput、移除Widget、移除委托、关闭Tickable。
+- ShouldCreateSubsystem()：覆盖接口函数，对于非Server端都会加载LoadingScreen。
+- FTickableGameObject
+	- Tick()：调用**ShouldCreateSubsystem()**，计算TimeUntilNextLogHeartbeatSeconds。
+	- GetTickableTickType()
+	- IsTickable()：如果GameInstance有效且拥有游戏窗口就可以进行Tick。
+	- GetStatId()：STATGROUP_Tickables
+	- GetTickableGameObjectWorld()：GetGameInstance()->GetWorld();
+- RegisterLoadingProcessor()：用于坐车任务，在ULoadingProcessTask::CreateLoadingScreenProcessTask()被调用。
+- UnregisterLoadingProcessor()：用于卸载任务，在ULoadingProcessTask::Unregister()被调用。
+- **HandlePreLoadMap()**：修改bCurrentlyInLoadMap为true，之后调用UpdateLoadingScreen()。
+- **HandlePostLoadMap()**：修改bCurrentlyInLoadMap为false。
+
+### FPreLoadScreenManager

03-UnrealEngine/Rendering/Debug/RenderDoc使用技巧.md

@@ -27,6 +27,11 @@ pix的单步调试需要开启**开发者模式**，具体是在window的设置
 
 ## 抓帧技巧
 -  [RenderDoc抓帧steam平台](https://zhuanlan.zhihu.com/p/721764908)
+- 关闭并行绘制相关命令：
+	- **r.RHICmdBypass=1**  
+	- **r.MeshDrawCommands.ParallelPassSetup=0**  
+	- **r.MeshDrawCommands.UseCachedCommands=1**  
+	- **r.RDG.ImmediateMode=1**
 
 # UE相关设置
 开启Renderdoc的PixelDebug功能：

03-UnrealEngine/Rendering/RenderFeature/ShaderWorldPlugin/ShaderWorld.md

@@ -1534,6 +1534,7 @@ void AShaderWorldActor::CollisionCPU()
 		BPRecomputeScope = BPCollisionRebuildRequest, ColRingCount = CollisionGridMaxRingNumber, LocalActorLocation, LocalOriginLocation,
 		Height0 = HeightOnStart,  Bounded = WorldHasBounds_OnRebuild, GBounds = WorldBoundsOnRebuild, Lock = CollisionMeshAccessLock]
 		{
+			//CollisionShareable无效则返回
 			if (!CollData.IsValid())
 			{
 				if (Completion.IsValid())
@@ -1542,9 +1543,8 @@ void AShaderWorldActor::CollisionCPU()
 			}
 
 			FScopeLock CollisionMeshArrayAccess(Lock.Get());
-
+			//Brush相关
 			double CollisionWidth = CollData->CollisionResolution * (CollData->VerticePerPatch - 1);
-
 			TMap<FIntVector, FVector> BrushRedraws;
 			for (const FBox2d& B : BrushScope)
 			{
@@ -1571,7 +1571,6 @@ void AShaderWorldActor::CollisionCPU()
 			SWorldBounds.Max *= 100.0;
 
 			TSet<FIntVector> ExternalCollisionsBounds;
-
 			for (const ShaderWorld::FVisitor& SingleCamLoc : VisitorLocations)
 			{
 				if (SingleCamLoc.Bounds.IsValid)
@@ -1583,6 +1582,7 @@ void AShaderWorldActor::CollisionCPU()
 			CollData->MultipleCamera.Empty();
 			CollData->LocRefs.Empty();
 
+			//遍历所有Visitor，之后往CollisionShareable中的LocRefs、MultipleCamera添加计算结果。
 			for (const ShaderWorld::FVisitor& SingleCamLoc : VisitorLocations)
 			{			
 				if (SingleCamLoc.Bounds.IsValid)
@@ -1689,6 +1689,7 @@ void AShaderWorldActor::CollisionCPU()
 			WorldBounds.Min *= 100.0;
 			WorldBounds.Max *= 100.0;
 
+			//根据ShaderWorld边界，来维护UsedCollisionMesh、CollisionMeshData、CollisionMeshToCreate、CollisionMeshToRenameMoveUpdate、GroundCollisionLayout
 			for (auto& ExternalBounds : ExternalCollisionsBounds)
 			{
 				FIntVector LocMeshInt = ExternalBounds;
@@ -1735,6 +1736,7 @@ void AShaderWorldActor::CollisionCPU()
 				}
 			}
 
+			//根据ShaderWorld MultipleCamera，来维护UsedCollisionMesh、CollisionMeshData、CollisionMeshToCreate、CollisionMeshToRenameMoveUpdate、GroundCollisionLayout
 			for (auto& Elem : CollData->MultipleCamera)
 			{
 				FIntVector& SingleCam = Elem.Key;
@@ -1796,6 +1798,7 @@ void AShaderWorldActor::CollisionCPU()
 				}
 			}
 
+			//开始下一轮循环，bPreprocessingCollisionUpdate 设置为false
 			if (Completion.IsValid())
 				(*Completion.Get()) = false;
 		}

03-UnrealEngine/Rendering/RenderingPipeline/PSO Precache机制笔记.md

@@ -9,6 +9,7 @@ rating: ⭐
 - [UE5.3] PSO Cache&PreCache 源码阅读:https://zhuanlan.zhihu.com/p/679832250
 - [UE5.3] PSO Cache&PreCache 源码阅读(二):https://zhuanlan.zhihu.com/p/681803986
 - Unreal Engine 5.2 MeshPass拓展:https://zhuanlan.zhihu.com/p/671423486
+- 优化UE5的PSO卡顿：FileCache，PreCache和异步PSO https://zhuanlan.zhihu.com/p/1898646962561094034
 # 执行链
 - FGraphEventArray UPrimitiveComponent::PrecachePSOs()
 - void UMaterialInterface::InitDefaultMaterials()

03-UnrealEngine/卡通渲染相关资料/卡通渲染开发总览.md

@@ -188,6 +188,7 @@ rating: ⭐⭐⭐
 	1. [ ] https://www.bilibili.com/video/BV1L5kdYFEXc/?spm_id_from=333.1007.tianma.4-1-11.click&vd_source=d47c0bb42f9c72fd7d74562185cee290
 	2. [ ] 风格化水面资产 https://item.taobao.com/item.htm?id=865360489543&pisk=gLHsX7NMiNb1gB7njFKURXly5Dwb5q9y1iZxqmBNDReTkigKDtQA6-FLJorOMSU2sqNju2VxQRoZRGDIPtWwSCmAh-yvzUJyUcman-Lyk8kOUGq4mNUAurCKv-rjPdNAXcmgnrIFkQlKjZg5RK5YDrKQpor7k-EYW9KQcuaYHPFAJ6E8JrexkSIdJuZ5MZCTHkKQju5OBoeYvMEaVtBtk-KIvyqxnDXQDCZ-fHz1qUDkpeKgJtBxdlNpTcUKrr-4i5TjbyXvy1Zg1coTRtBxKXkPllz9ZMz0QPDbfqvlIRFjTAVoQeBsl20KBSDp8B00QuV-MD-lTPDIQvFsCU1uCX3nd5DOWhqtsqDbQx71hDMb57HTOKx0CDEYdbneq6zidAkL1AT5ZPMiDjPItNTUuboEBWgJ89g0GXkgZA8dC4IyzTz7sJ5fA7XbAz-BAsf0xzPwqJ_edaNTxlTyAH_Gi5E3AmtBAsDg6kqF6HtCWc1..&spm=a21xtw.29178619.product_shelf.74.41727d6dRCDvul
 24. [ ] 添加Debug View https://zhuanlan.zhihu.com/p/668782106
+	1. [ ] UE5.5 自定义/扩展缓冲可视化调试功能 https://zhuanlan.zhihu.com/p/16314329507
 25. [ ] [_UE5_ Shader Print系统](https://zhuanlan.zhihu.com/p/637929634)
 26. [ ] GBufferView实现。
 27. [ ] Toon Debug模式，可以让美术在材质进行进行简单的光照计算。