UNiagaraDataInterfaceNeighborQuery

API > API/Plugins > API/Plugins/Niagara

   
Name UNiagaraDataInterfaceNeighborQuery
Type class
Header File /Engine/Plugins/FX/Niagara/Source/Niagara/Classes/NiagaraDataInterfaceNeighborQuery.h
Include Path #include "NiagaraDataInterfaceNeighborQuery.h"

Syntax

UCLASS (EditInlineNew, Category="Grid", CollapseCategories, Meta=(DisplayName="Neighbor Query"),  
       MinimalAPI)  
class UNiagaraDataInterfaceNeighborQuery : public UNiagaraDataInterfaceGrid3D

Inheritance Hierarchy

Constructors

Name Remarks Include Path Unreal Specifiers

UNiagaraDataInterfaceNeighborQuery ( const FObjectInitializer& ObjectInitializer
)

   NiagaraDataInterfaceNeighborQuery.h  

Classes

Name Remarks
FShaderParameters  

Variables

Public

Name Type Remarks Include Path Unreal Specifiers
bCountOnly bool Skip prefix sum and scatter passes — only the histogram is computed. NiagaraDataInterfaceNeighborQuery.h
  • EditAnywhere
  • Category="Grid"
bUsePersistentIDs bool When enabled (default), AcquireTag is tracked through the counting sort for compaction-safe neighbor lookups via GetPositionByID. NiagaraDataInterfaceNeighborQuery.h
  • EditAnywhere
  • Category="Grid"
  • AdvancedDisplay
MaxCellsPerParticle uint32   NiagaraDataInterfaceNeighborQuery.h
  • EditAnywhere
  • Category="Grid"
  • AdvancedDisplay

Functions

Public

Name Remarks Include Path Unreal Specifiers

void GetMaxCellsPerParticle ( FVectorVMExternalFunctionContext& Context
)

   NiagaraDataInterfaceNeighborQuery.h  

void GetNumCells ( FVectorVMExternalFunctionContext& Context
)

   NiagaraDataInterfaceNeighborQuery.h  

void SetNumCells ( FVectorVMExternalFunctionContext& Context
)

   NiagaraDataInterfaceNeighborQuery.h  

Public Virtual

Overridden from UNiagaraDataInterface

Name Remarks Include Path Unreal Specifiers

virtual bool AppendCompileHash ( FNiagaraCompileHashVisitor* InVisitor
) const

 GPU sim functionality. NiagaraDataInterfaceNeighborQuery.h  

virtual bool CanExecuteOnTarget ( ENiagaraSimTarget Target
) const

   NiagaraDataInterfaceNeighborQuery.h  

virtual void DestroyPerInstanceData ( void* PerInstanceData,
FNiagaraSystemInstance* SystemInstance
)

 Destroys the per instance data for this interface. NiagaraDataInterfaceNeighborQuery.h  

virtual bool Equals ( const UNiagaraDataInterface* Other
) const

 Determines if this DataInterface is the same as another. NiagaraDataInterfaceNeighborQuery.h  
Query the data interface to give feedback to the end user. NiagaraDataInterfaceNeighborQuery.h  

virtual bool GetFunctionHLSL ( const FNiagaraDataInterfaceGPUParamInfo& ParamInfo,
const FNiagaraDataInterfaceGeneratedFunction& FunctionInfo,
int FunctionInstanceIndex,
FString& OutHLSL
)

   NiagaraDataInterfaceNeighborQuery.h  

virtual void GetParameterDefinitionHLSL ( const FNiagaraDataInterfaceGPUParamInfo& ParamInfo,
FString& OutHLSL
)

 GPU sim functionality. NiagaraDataInterfaceNeighborQuery.h  

virtual void GetVMExternalFunction ( const FVMExternalFunctionBindingInfo& BindingInfo,
void* InstanceData,
FVMExternalFunction& OutFunc
)

 VM functionality. NiagaraDataInterfaceNeighborQuery.h  

virtual bool HasPostSimulateTick()

   NiagaraDataInterfaceNeighborQuery.h  

virtual bool InitPerInstanceData ( void* PerInstanceData,
FNiagaraSystemInstance* SystemInstance
)

 Initializes the per instance data for this interface. NiagaraDataInterfaceNeighborQuery.h  

virtual int32 PerInstanceDataSize ()

 Returns the size of the per instance data for this interface. NiagaraDataInterfaceNeighborQuery.h  

virtual bool PerInstanceTick ( void* PerInstanceData,
FNiagaraSystemInstance* SystemInstance,
float DeltaSeconds
)

 Ticks the per instance data for this interface, if it has any. NiagaraDataInterfaceNeighborQuery.h  

virtual bool PerInstanceTickPostSimulate ( void* PerInstanceData,
FNiagaraSystemInstance* SystemInstance,
float DeltaSeconds
)

   NiagaraDataInterfaceNeighborQuery.h  

virtual void ProvidePerInstanceDataForRenderThread ( void* DataForRenderThread,
void* PerInstanceData,
const FNiagaraSystemInstanceID& SystemInstance
)

 Subclasses that wish to work with GPU systems/emitters must implement this. NiagaraDataInterfaceNeighborQuery.h  
Set the shader parameters will only be called if the data interface provided shader parameters. NiagaraDataInterfaceNeighborQuery.h  

Overridden from UNiagaraDataInterfaceBase

Name Remarks Include Path Unreal Specifiers

virtual void BuildShaderParameters ( FNiagaraShaderParametersBuilder& ShaderParametersBuilder
) const

   NiagaraDataInterfaceNeighborQuery.h  

Overridden from UObject

Name Remarks Include Path Unreal Specifiers

virtual void PostInitProperties()

   NiagaraDataInterfaceNeighborQuery.h  

Protected Virtual

Overridden from UNiagaraDataInterface

Name Remarks Include Path Unreal Specifiers

virtual bool CopyToInternal ( UNiagaraDataInterface* Destination
) const

   NiagaraDataInterfaceNeighborQuery.h  

virtual void GetFunctionsInternal ( TArray< FNiagaraFunctionSignature >& OutFunctions
) const

   NiagaraDataInterfaceNeighborQuery.h  

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