UDocumentation UE5.7 10.02.2026 (Source)
API documentation for Unreal Engine 5.7
Public Member Functions | Public Attributes | List of all members
FISMCInstanceDataSceneProxyNoGPUScene Class Reference

#include <ISMInstanceDataSceneProxy.h>

+ Inheritance diagram for FISMCInstanceDataSceneProxyNoGPUScene:

Public Member Functions

 FISMCInstanceDataSceneProxyNoGPUScene (FStaticShaderPlatform InShaderPlatform, ERHIFeatureLevel::Type InFeatureLevel, bool bInLegacyReordered)
 
 ~FISMCInstanceDataSceneProxyNoGPUScene ()
 
void ReleaseStaticMeshInstanceBuffer ()
 
virtual void Update (FISMInstanceUpdateChangeSet &&ChangeSet) override
 
virtual void Build (FISMInstanceUpdateChangeSet &&ChangeSet) override
 
virtual void BuildFromLegacyData (TUniquePtr< FStaticMeshInstanceData > &&ExternalLegacyData, const FRenderBounds &InstanceLocalBounds, TArray< int32 > &&InLegacyInstanceReorderTable) override
 
virtual void UpdatePrimitiveTransform (FISMInstanceUpdateChangeSet &&ChangeSet) override
 
template<typename IndexRemapType >
void ApplyDataChanges (FISMInstanceUpdateChangeSet &ChangeSet, const IndexRemapType &IndexRemap, int32 PostUpdateNumInstances, FInstanceSceneDataBuffers::FWriteView &ProxyData, FStaticMeshInstanceData &LegacyInstanceData)
 
virtual ENGINE_API FStaticMeshInstanceBuffer * GetLegacyInstanceBuffer () override
 
- Public Member Functions inherited from FISMCInstanceDataSceneProxyLegacyReordered
 FISMCInstanceDataSceneProxyLegacyReordered (FStaticShaderPlatform InShaderPlatform, ERHIFeatureLevel::Type InFeatureLevel, bool bInLegacyReordered)
 
- Public Member Functions inherited from FISMCInstanceDataSceneProxy
 FISMCInstanceDataSceneProxy (FStaticShaderPlatform InShaderPlatform, ERHIFeatureLevel::Type InFeatureLevel)
 
const FInstanceSceneDataBuffers & GetData () const
 
bool CheckPlatformFeatureLevel (FStaticShaderPlatform InShaderPlatform, ERHIFeatureLevel::Type InFeatureLevel)
 
virtual FInstanceDataUpdateTaskInfo * GetUpdateTaskInfo ()
 
ENGINE_API void DebugDrawInstanceChanges (FPrimitiveDrawInterface *DebugPDI, ESceneDepthPriorityGroup SceneDepthPriorityGroup)
 
- Public Member Functions inherited from FInstanceDataSceneProxy
ENGINE_API FInstanceDataSceneProxy ()
 
ENGINE_API FInstanceDataSceneProxy (FInstanceSceneDataBuffers &&InInstanceSceneDataBuffers)
 
virtual ENGINE_API ~FInstanceDataSceneProxy ()
 
virtual const FInstanceSceneDataBuffers * GeInstanceSceneDataBuffers () const
 

Public Attributes

TUniquePtr< FStaticMeshInstanceBuffer > LegacyInstanceBuffer
 

Additional Inherited Members

- Public Types inherited from FISMCInstanceDataSceneProxy
using FISMPrecomputedSpatialHashDataPtr = TSharedPtr< const FISMPrecomputedSpatialHashData, ESPMode::ThreadSafe >
 
- Static Public Member Functions inherited from FISMCInstanceDataSceneProxy
static ENGINE_API FVector3f GetLocalBoundsPadExtent (const FRenderTransform &LocalToWorld, float PadAmount)
 
- Protected Member Functions inherited from FISMCInstanceDataSceneProxyLegacyReordered
void UpdateInstancesTransforms (FInstanceSceneDataBuffers::FWriteView &ProxyData, const FStaticMeshInstanceData &LegacyInstanceData)
 
- Protected Member Functions inherited from FISMCInstanceDataSceneProxy
void BuildFromOptimizedDataBuffers (FISMInstanceUpdateChangeSet &ChangeSet, FInstanceIdIndexMap &OutInstanceIdIndexMap, FInstanceSceneDataBuffers::FWriteView &OutData)
 
template<typename IndexRemapType >
void UpdateIdMapping (FISMInstanceUpdateChangeSet &ChangeSet, const IndexRemapType &IndexRemap)
 
template<typename IndexRemapType >
void ApplyDataChanges (FISMInstanceUpdateChangeSet &ChangeSet, const IndexRemapType &IndexRemap, int32 PostUpdateNumInstances, FInstanceSceneDataBuffers::FWriteView &ProxyData)
 
template<typename IndexRemapType >
void ApplyAttributeChanges (FISMInstanceUpdateChangeSet &ChangeSet, const IndexRemapType &IndexRemap, FInstanceSceneDataBuffers::FWriteView &ProxyData)
 
void TestAndApplyInstanceBufferSizeFixup (int32 PostUpdateNumInstances)
 
- Protected Member Functions inherited from FInstanceDataSceneProxy
ENGINE_API void IncStatCounters ()
 
ENGINE_API void DecStatCounters ()
 
- Protected Attributes inherited from FISMCInstanceDataSceneProxyLegacyReordered
TArray< int32 > LegacyInstanceReorderTable
 
bool bLegacyReordered = false
 
TUniquePtr< FStaticMeshInstanceData > ExternalLegacyData
 
- Protected Attributes inherited from FISMCInstanceDataSceneProxy
FStaticShaderPlatform ShaderPlatform
 
ERHIFeatureLevel::Type FeatureLevel
 
bool bUseLegacyRenderingPath = false
 
TBitArray ValidInstanceIdMask
 
FInstanceIdIndexMap InstanceIdIndexMap
 
FInstanceDataUpdateTaskInfo InstanceDataUpdateTaskInfo
 
bool bIsNew = true
 
bool bBuildOptimized = false
 
FISMPrecomputedSpatialHashDataPtr PrecomputedOptimizationData
 
- Protected Attributes inherited from FInstanceDataSceneProxy
FInstanceSceneDataBuffers InstanceSceneDataBuffers
 

Detailed Description

Proxy that supports legacy NoGPUScene data management (and HISM).

Constructor & Destructor Documentation

◆ FISMCInstanceDataSceneProxyNoGPUScene()

FISMCInstanceDataSceneProxyNoGPUScene::FISMCInstanceDataSceneProxyNoGPUScene ( FStaticShaderPlatform  InShaderPlatform,
ERHIFeatureLevel::Type  InFeatureLevel,
bool  bInLegacyReordered 
)

◆ ~FISMCInstanceDataSceneProxyNoGPUScene()

FISMCInstanceDataSceneProxyNoGPUScene::~FISMCInstanceDataSceneProxyNoGPUScene ( )

Member Function Documentation

◆ ApplyDataChanges()

template<typename IndexRemapType >
void FISMCInstanceDataSceneProxyNoGPUScene::ApplyDataChanges ( FISMInstanceUpdateChangeSet &  ChangeSet,
const IndexRemapType &  IndexRemap,
int32  PostUpdateNumInstances,
FInstanceSceneDataBuffers::FWriteView &  ProxyData,
FStaticMeshInstanceData &  LegacyInstanceData 
)

◆ Build()

void FISMCInstanceDataSceneProxyNoGPUScene::Build ( FISMInstanceUpdateChangeSet &&  ChangeSet)
overridevirtual

Reimplemented from FISMCInstanceDataSceneProxyLegacyReordered.

◆ BuildFromLegacyData()

void FISMCInstanceDataSceneProxyNoGPUScene::BuildFromLegacyData ( TUniquePtr< FStaticMeshInstanceData > &&  ExternalLegacyData,
const FRenderBounds &  InstanceLocalBounds,
TArray< int32 > &&  InLegacyInstanceReorderTable 
)
overridevirtual

Reimplemented from FISMCInstanceDataSceneProxyLegacyReordered.

◆ GetLegacyInstanceBuffer()

FStaticMeshInstanceBuffer * FISMCInstanceDataSceneProxyNoGPUScene::GetLegacyInstanceBuffer ( )
overridevirtual

Workaround to support the ISMC non GPU scene rendering path.

Reimplemented from FInstanceDataSceneProxy.

◆ ReleaseStaticMeshInstanceBuffer()

void FISMCInstanceDataSceneProxyNoGPUScene::ReleaseStaticMeshInstanceBuffer ( )

Helper to pass the unique reference to LegacyInstanceBuffer to the render thread and call ReleaseResource() to clean up vertex buffers.

◆ Update()

void FISMCInstanceDataSceneProxyNoGPUScene::Update ( FISMInstanceUpdateChangeSet &&  ChangeSet)
overridevirtual

Overridable functions to update / build proxy data from a change set.

Reimplemented from FISMCInstanceDataSceneProxyLegacyReordered.

◆ UpdatePrimitiveTransform()

void FISMCInstanceDataSceneProxyNoGPUScene::UpdatePrimitiveTransform ( FISMInstanceUpdateChangeSet &&  ChangeSet)
overridevirtual

Handle only updating the primitive transform, could make use of special cases such as translation only if implemented properly.

Reimplemented from FISMCInstanceDataSceneProxyLegacyReordered.

Member Data Documentation

◆ LegacyInstanceBuffer

TUniquePtr<FStaticMeshInstanceBuffer> FISMCInstanceDataSceneProxyNoGPUScene::LegacyInstanceBuffer
The documentation for this class was generated from the following files: