Merge remote-tracking branch 'origin/master'
# Conflicts: # 01-Diary/周小结/2024.8.md
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Content/ResArt/CommandMaterial
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- [x] [[#Functions]]
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- [x] [[#MatCap]]
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- [ ] [[#Materials]]
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- [x] [[#Materials]]
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- [ ] [[#MaterialInstance]]
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- [x] [[#Outline]]
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- [x] [[#Textures]]
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@ -52,7 +52,7 @@ Content/ResArt/CommandMaterial
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- **MF_ToonHairSpecularMaskUV**：计算Hair高光贴图UV，被MF_ApplyToonHairSpecular（**M_ToonBase_V02**）调用。
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- 使用dot( float3(0,0,1.0f), CaemraVector)的数值来对**HairMask的采样UV（V轴）** 进行偏移，以此实现高光偏移效果。
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- **MF_ToonPBRInput**：通用ToonPBR材质逻辑函数。集合了MF_CharacterMainLightIntensity、MF_Matcap、MF_Surface、**MF_ToonPBRInput**l材质函数以及一些变量材质设置。被**M_Penetrate**、**M_ToonBase_V01**、**M_ToonFace**、**M_ToonHair_V01**、**M_ToonSkin**、**M_BeiLa_Skin_AnotherWorld**、**M_Wave**。
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- [ ] ***MF_TranslucentDOF***：Translucent材质的景深效果，***没有看懂***。被MF_Input、**MF_Surface**、**MF_Surface_V02**、M_ToonFacee_old、M_ToonLaserPBR调用。
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- ***MF_TranslucentDOF***：Translucent材质的景深效果，***没有看懂***。被MF_Input、**MF_Surface**、**MF_Surface_V02**、M_ToonFacee_old、M_ToonLaserPBR调用。
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- MF_VectorRotateAboutAxis：向量旋转函数。被MF_WorldSpaceStarring调用。
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- MF_WorldSpaceStarring：被M_NaiLin_AnotherWorld02调用。
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- SceneEffectsCollection：场景效果材质参数集，**可能已经废弃，因为UE5大世界不支持关卡流**。会被MF_SceneEffects、BP_EmptyToStageA以及其他材质调用。
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@ -268,15 +268,15 @@ return Result;
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- MI_EyeShadow_V02：
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- MI_MakeUp_V02：
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- MI_TeethTongue_V02：
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- [ ] **M_Eye_Highlight**：
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- [x] **M_Eye_Highlight**：
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- M_Hide：隐藏模型用材质。
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- [ ] M_Penetrate：
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- [x] M_Penetrate：
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- [x] **M_ToonBase_V01**：主要的逻辑是MF_ToonPBRInput => MF_CharacterEffects。**默认的ShadingModel为14**，也就是**SHADINGMODELID_TOON_PBR**。
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- [x] M_ToonBase_V02_Penetrate：带有Penetrate功能的M_ToonBase_V01。
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- [ ] **M_ToonFace**：
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- [ ] M_ToonFace_old：
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- [ ] **M_ToonHair_V01**：
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- [ ] **M_ToonSkin**：
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- [x] **M_ToonFace**：
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- [x] M_ToonFace_old：
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- [x] **M_ToonHair_V01**：
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- [x] **M_ToonSkin**：
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## M_ToonBase_V02
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与M_ToonBase_V01相比。最主要的逻辑区别在于：
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10
03-UnrealEngine/Sequence/Bink Video.md
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03-UnrealEngine/Sequence/Bink Video.md
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---
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title: Untitled
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date: 2024-08-27 14:53:29
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excerpt:
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tags:
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rating: ⭐
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---
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# 前言
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- Bink Video for Unreal Engine https://dev.epicgames.com/documentation/en-us/unreal-engine/bink-video-for-unreal-engine
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-
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@ -64,6 +64,9 @@ rating: ⭐⭐⭐
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7. [ ] ToonPostProcess
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1. [ ] ToonBloom
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2. [ ] 实现一波Anti-Lut
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3. [ ] 考虑其他风格的ToneMapper（可能还是使用LUT更好调整） https://zhuanlan.zhihu.com/p/716759929?utm_psn=1812047639874760707
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1. [ ] CCA Tonemapping
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2. [ ] GT Tonemapping https://github.com/yaoling1997/GT-ToneMapping
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8. [ ] ToonRimLighting
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1. [ ] 后处理边缘光
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2. [ ] Matcap
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@ -90,16 +93,22 @@ rating: ⭐⭐⭐
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17. [ ] Toon Debug模式，可以让美术在材质进行进行简单的光照计算。
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18. [ ] ToonShadow
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1. ![[星穹铁道中下巴阴影处理.png]]
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19. [ ] 考虑往GBuffer中添加更多数据（考虑Velocity以及SingleLayerWater）
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19. [ ] LookDev场景
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1. [ ] https://zhuanlan.zhihu.com/p/394608910
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20. [ ] 考虑往GBuffer中添加更多数据（考虑Velocity以及SingleLayerWater）
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1. ShaderMaterialDerivedHelpers.cpp（Shader宏）、GBufferInfo.cpp（GBuffer格式）BasePassRendering.cpp（950行，SingleLayerWater写入GBuffer格式相关）
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2. 确定一下SingleLayerWater中VSMFiter与DistanceFieldShadow对渲染结果的影响，之后在文档中说明。
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20. [ ] 修复SIngleLayerWater的缩略图渲染渲染错误（双击会有一瞬间的错误产生）
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21. [ ] ToonLumen、GI以及晕染效果实现。![[卡通渲染晕染效果.mp4]]
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22. [ ] 在材质中实现ToonEye相关效果
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21. [ ] 修复SIngleLayerWater的缩略图渲染渲染错误（双击会有一瞬间的错误产生）
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22. [ ] 添加对应的Stat https://zhuanlan.zhihu.com/p/716644594
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23. [ ] ToonLumen、GI以及晕染效果实现。![[卡通渲染晕染效果.mp4]]
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24. [ ] 在材质中实现ToonEye相关效果
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1. 【二次元人物眼睛如何变形?】 https://www.bilibili.com/video/BV14M4m1y71A/?share_source=copy_web&vd_source=fe8142e8e12816535feaeabd6f6cdc8e
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1. 原视频 https://www.youtube.com/watch?v=euIyX9v8rvw
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2. 眼睛建模 https://youtu.be/s2_7Q2IIvNY?si=fWiYjqcLFXzdeQ-B&t=126
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23. [ ] Unreal Engine 5.4 Scene Extension https://zhuanlan.zhihu.com/p/706268007
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25. 卡通渲染针对TAA的优化思路 https://zhuanlan.zhihu.com/p/678876237
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1. https://www.bilibili.com/video/BV1BK411v7FY/?spm_id_from=333.788&vd_source=ea6df38502a795b7533aa33b78bf1159
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2. https://zhuanlan.zhihu.com/p/20786650
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26. [ ] Unreal Engine 5.4 Scene Extension https://zhuanlan.zhihu.com/p/706268007
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1. [ ] 通过SceneExtension改进ToonObjectID，这样可以减少对应ToonBuffer的精度来存其他数据。
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2. [ ] https://www.bilibili.com/video/BV1fM4m1U7Tp/
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@ -7,8 +7,11 @@ rating: ⭐⭐
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---
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## 前言
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视频推荐：https://www.youtube.com/watch?v=ZRaeiVAM4LI
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其他：https://zhuanlan.zhihu.com/p/629225258
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- 视频推荐：
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- https://www.youtube.com/watch?v=ZRaeiVAM4LI
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- 其他：
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- https://zhuanlan.zhihu.com/p/629225258
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- Tomlooman的优化建议:https://www.tomlooman.com/wp-content/uploads/2022/11/Unreal-Engine-Game-Optimization-on-a-Budget.pdf
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GPU Visualizer工具显示命令： **ProfileGPU**
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CPU优化方法:https://www.unrealengine.com/en-US/blog/how-to-improve-game-thread-cpu-performance
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@ -23,6 +26,13 @@ CPU优化方法:https://www.unrealengine.com/en-US/blog/how-to-improve-game-thre
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- we see that it is being called 10 times a frame
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4. We then need to go look at who is calling AddLight via a break point. And see why adding a specific light or lights is so slow. Usually it is the case that a specific light being added in a way that is doing more work than actually needs to be done. (e.g. attaching / reattaching it)
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# 优化前需做
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- r.vsync 0
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- t.maxfps 0
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- SmoothFrameRate=False (Project Settings)
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- Lighting Built & MapCheck Errors fixed.
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- Packaged Game build
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- 使用Standalone进行优化。
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## 优化笔记
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r.Lumen.DiffuseIndirect.MeshSDF.RadiusThreshold
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让物体包围球的半径大于上述两个决定的数值的时候，才参与mesh sdf的软追踪。
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@ -212,3 +222,54 @@ UE5使用DLSS时需要关闭TAA，并且调整[[ScreenPercentage与描边宽度
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# 内存数据查看
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- stat llm：查看**虚拟内存数据**。需要在启动方式里添加`-llm`才会有数据。
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- MemoryInsight：需要在启动方式里添加`-trace=memory`，之后才能在UnrealInsight中查看。
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# 材质优化 MIN/MAX DRAW DISTANCE
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使用DistanceCullFade节点将过远的部分给Cull掉。
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![[Unreal-Engine-Game-Optimization-on-a-Budget_MINMAX DRAW DISTANCE.png]]
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# FREEZERENDERING
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冻结渲染以此查看剔除情况。
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- ‘FreezeRendering’ + ; (semi-colon) to fly with DebugCamera
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- Verify occlusion is working as expected
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- ‘pause’ (Freeze Game Thread)
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# LIGHT CULLING (Stationary & Movable)
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- Automatic ScreenSize culling not strict enough
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- MinScreenRadiusForLights (0.03)
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- Cull earlier case-by-case
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- MaxDrawDistance
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- MaxDistanceFadeRange
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- Profiling
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- Show > LightComplexity (Alt+7)
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- Show > StationaryLightOverlap
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- ToggleLight
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# LEVEL STREAMING
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关卡流调试方法
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- Streaming Volumes vs. Manual Load/Unload
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- Camera Location based (caution: third person view and cinematic shots)
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- Cannot combine both on a specific sublevel, can mix within the game
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- Profiling
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- stat levels
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- Loadtimes.dumpreport (+ loadtimes.reset)
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- Unreal Insight
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- UnrealInsight相关标签：Look for level load & “GC” bookmarks
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- UnrealInsight相关追踪内容：loadtime,file categories
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# Animation
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## ANIMATION: FAST PATH
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- Allow ‘Fast Path’ by moving Computations out of AnimGraph (into EventGraph)
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- Use WarnAboutBlueprintUsage to get warnings in AnimGraph
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- Profiling
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- stat anim
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## ANIMATION: QUICK WINS
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- **Update Rate Optimization (URO) for distant SkelMeshes**：根据距离调整骨骼物体的更新频率，该选项位于SkeletalMeshComponent。
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- VisibilityBasedAnimTickOption (DefaultEngine.ini)
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- OnlyTickPoseWhenRendered
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- AlwaysTickPoseAndRefreshBones
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- …
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- More Bools!
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- bRenderAsStatic ：UE5.2不存在该选项。
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- bPauseAnims：该选项位于SkeletalMeshComponent。
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- bNoSkeletonUpdate：该选项位于SkeletalMeshComponent。
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@ -165,7 +165,11 @@ Game Thread 造成的开销，基本可以归因于 C++ 和蓝图的逻辑处理
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针对Tick可使用：
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- **stat game**：显示 Tick 的耗时情况
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- **dumpticks**：可将所有正在 _tick_ 的 _actor_ 打印到 _log_ 中
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- dumpticks grouped
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- **stat tickables**
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- **listtimers**
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- **stat uobjects**
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- [[#MOVING SCENE COMPONENTS]]
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复杂逻辑：需要借助 Unreal Frontend Profiler / Unreal Insights 等工具对游戏逻辑中开销较大的代码进行定位。
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### LandscapeSubsystem Tick
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@ -234,6 +238,42 @@ Draw Thread 的主要开销来源于 **Visibility Culling** 和 **Draw Call**
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- 对于纹理的优化，后续将另开新篇加以详细介绍
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## 内存
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- MEMREPORT -full
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- Runs a number of individual commands for memory profiling
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- obj list class=
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- Example: obj list class=AnimSequence
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- Only in Packaged Builds
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- Example: AnimSequence twice as large in editor builds.
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这样就就可以查看指定Object的内存占用情况。
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## COLLISION & PHYSICS
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- Unreal configured to work out of the box.
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- “Collision Enabled” => Physics + Query
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- Most things require just ‘QueryOnly’
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- Disable on components players can’t reach or interact with.
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- Profiling
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- stat physics, stat collision
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- obj list class=BodySetup
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- show CollisionPawn, show CollisionVisibility
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- Tip: Landscape may use lower collision MIPs
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## MOVING SCENE COMPONENTS
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移动场景组件可能会造成一些性能问题，需要注意以下几点：
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- Move/Rotate only once per frame
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- **Disable Collision & GenerateOverlaps=False**
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- AutoManageAttachment
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- Audio & Niagara
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- Profiling
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- stat component
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### MOVING COMPONENTS - BOUNDS
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- ***UseAttachParentBound=True***
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- Skips “CalcBounds”
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- 检查命令：show Bounds / showflag.bounds 1
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蓝图中勾选***UseAttachParentBound***，以此跳过计算CalcBounds的问题。
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## UnrealFrontend Profiler
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官方文档：[Profiler Tool](https://docs.unrealengine.com/4.27/zh-CN/TestingAndOptimization/PerformanceAndProfiling/Profiler/)
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其他参考文章：
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