PrecachePSO

ShadersOnlyPSOPrecacheStatsCollector::AddToCache(ShaderOnlyHash)

FullPSO Miss Validation

MinimalPSOPrecacheStatsCollector::CheckMinimalPSO(MinimalPSOHash)

Collect PSO Minimal Hash

PrecachePSOs

Render Pipeline

Precache PSOs  pipeling

MinimalPSOPrecacheStatsCollector::CheckShaderOnly(haderOnlyHash)

FMaterialPSORequestManager::PrecachePSOs

MeshProcessor各自有自己的precache过滤规则，有些不会收集但是渲染可能用到，也有多收集但是渲染不用的情况

FullPSOPrecacheStatsCollector::AddToCache(PSOHash)

MinimalPSOPrecacheStatsCollector::AddToCache(MinimalPSOHash)

FMaterialShaderMap::CollectPSOPrecacheData

XXXXPassMeshProcess::CollectPSOInitializers

FMeshPassProcessor::BuildMeshDrawCommands

ShadeOnly and MinimalPSO Miss Validation

RequestPrecachePSOs

FullPSOPrecacheStatsCollector::CheckFullPSO(PSOHash)

PSOPrecache Validation

Collect PSO Shader Hash

FMeshDrawCommand::SubmitDrawBegin

Collect FullPSO Hash

ShadowDepthPassMeshProcess::CollectPSOInitializers

BasePassMeshProcess::CollectPSOInitializers