2025-08-02 12:09:34 +08:00
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---
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title: PSO Precache机制笔记
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date: 2025-02-08 20:42:16
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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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2025-10-23 21:57:16 +08:00
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- 视频
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2025-10-23 22:54:41 +08:00
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- [Unreal Engine 5: Setup Precompiling Shaders (Bundled PSO's)](https://www.youtube.com/watch?v=NVoXDgXKS5k)
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- [Unreal Engine 5: Show Number Of Compiling Shaders](https://www.youtube.com/watch?v=8h1k2ViADgU)
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2025-10-23 21:57:16 +08:00
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- 文章
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- [UE5.3] PSO Cache&PreCache 源码阅读:https://zhuanlan.zhihu.com/p/679832250
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- [UE5.3] PSO Cache&PreCache 源码阅读(二):https://zhuanlan.zhihu.com/p/681803986
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- Unreal Engine 5.2 MeshPass拓展:https://zhuanlan.zhihu.com/p/671423486
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- 优化UE5的PSO卡顿：FileCache，PreCache和异步PSO https://zhuanlan.zhihu.com/p/1898646962561094034
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2025-10-23 22:54:41 +08:00
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# BundledPSO
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可以使用启动命令参数来清除PSO缓存。
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- 启动参数
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- -logPSO
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- -clearPSODriverCache
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- 命令行
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- r.ShaderPipelineCache.Enable=1
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2025-08-02 12:09:34 +08:00
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# 执行链
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- FGraphEventArray UPrimitiveComponent::PrecachePSOs()
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- void UMaterialInterface::InitDefaultMaterials()
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- UMaterial::PrecachePSOs
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UMaterial::PrecachePSOs => **MaterialResource->CollectPSOs()** => PrecacheMaterialPSOs() => PrecachePSOs() => CollectPSOs() => CollectPSOInitializers()
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# CollectPSOInitializers()
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接口IPSOCollector::CollectPSOInitializers()
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## 其他MeshProcessor实现
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