1. Epic GamesDeveloper
  3. UNiagaraDataInterfaceVelocityGrid

UNiagaraDataInterfaceVelocityGrid

Data Interface for the strand base

API > API/Plugins > API/Plugins/HairStrandsCore

Data Interface for the strand base

   
Name UNiagaraDataInterfaceVelocityGrid
Type class
Header File /Engine/Plugins/Runtime/HairStrands/Source/HairStrandsCore/Public/Niagara/NiagaraDataInterfaceVelocityGrid.h
Include Path #include "Niagara/NiagaraDataInterfaceVelocityGrid.h"

Syntax

UCLASS (MinimalAPI, EditInlineNew, Category="Grid", Meta=(DisplayName="Velocity Grid"))  
class UNiagaraDataInterfaceVelocityGrid : public UNiagaraDataInterfaceRWBase

Inheritance Hierarchy

Derived Classes

Constructors

Name Remarks Include Path Unreal Specifiers

UNiagaraDataInterfaceVelocityGrid ( const FObjectInitializer& ObjectInitializer
)

   Niagara/NiagaraDataInterfaceVelocityGrid.h  

Variables

Public

Name Type Remarks Include Path Unreal Specifiers
GridSize FIntVector Grid size along the X axis. Niagara/NiagaraDataInterfaceVelocityGrid.h
  • EditAnywhere
  • Category="Spawn"
NumAttributes int32 Num Attributes Niagara/NiagaraDataInterfaceVelocityGrid.h  

Functions

Public

Name Remarks Include Path Unreal Specifiers

void BuildVelocityField ( FVectorVMExternalFunctionContext& Context
)

 Build the velocity field Niagara/NiagaraDataInterfaceVelocityGrid.h  

void ComputeGridSize ( FVectorVMExternalFunctionContext& Context
)

 Compute the grid Size (Origin and length) Niagara/NiagaraDataInterfaceVelocityGrid.h  

void SampleVelocityField ( FVectorVMExternalFunctionContext& Context
)

 Sample the grid Niagara/NiagaraDataInterfaceVelocityGrid.h  

void SetGridDimension ( FVectorVMExternalFunctionContext& Context
)

 Set the grid dimension Niagara/NiagaraDataInterfaceVelocityGrid.h  

void UpdateGridTransform ( FVectorVMExternalFunctionContext& Context
)

 Update the grid transform Niagara/NiagaraDataInterfaceVelocityGrid.h  

Overridden from UNiagaraDataInterface

Name Remarks Include Path Unreal Specifiers

virtual bool AppendCompileHash ( FNiagaraCompileHashVisitor* InVisitor
) const

 GPU simulation functionality Niagara/NiagaraDataInterfaceVelocityGrid.h  

virtual bool CanExecuteOnTarget ( ENiagaraSimTarget Target
) const

   Niagara/NiagaraDataInterfaceVelocityGrid.h  

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

   Niagara/NiagaraDataInterfaceVelocityGrid.h  

virtual bool Equals ( const UNiagaraDataInterface* Other
) const

   Niagara/NiagaraDataInterfaceVelocityGrid.h  

virtual void GetCommonHLSL ( FString& OutHLSL
)

   Niagara/NiagaraDataInterfaceVelocityGrid.h  

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

   Niagara/NiagaraDataInterfaceVelocityGrid.h  

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

   Niagara/NiagaraDataInterfaceVelocityGrid.h  

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

 UNiagaraDataInterface Interface Niagara/NiagaraDataInterfaceVelocityGrid.h  

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

   Niagara/NiagaraDataInterfaceVelocityGrid.h  

virtual int32 PerInstanceDataSize()

   Niagara/NiagaraDataInterfaceVelocityGrid.h  

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

   Niagara/NiagaraDataInterfaceVelocityGrid.h  

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

   Niagara/NiagaraDataInterfaceVelocityGrid.h  

virtual void SetShaderParameters ( const FNiagaraDataInterfaceSetShaderParametersContext& Context
) const

   Niagara/NiagaraDataInterfaceVelocityGrid.h  

Overridden from UNiagaraDataInterfaceBase

Name Remarks Include Path Unreal Specifiers

virtual void BuildShaderParameters ( FNiagaraShaderParametersBuilder& ShaderParametersBuilder
) const

   Niagara/NiagaraDataInterfaceVelocityGrid.h  

Overridden from UObject

Name Remarks Include Path Unreal Specifiers

virtual void PostInitProperties()

 UObject Interface Niagara/NiagaraDataInterfaceVelocityGrid.h  

Protected

Overridden from UNiagaraDataInterface

Name Remarks Include Path Unreal Specifiers

virtual bool CopyToInternal ( UNiagaraDataInterface* Destination
) const

 Copy one niagara DI to this Niagara/NiagaraDataInterfaceVelocityGrid.h  

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

   Niagara/NiagaraDataInterfaceVelocityGrid.h  

Ask questions and help your peers Developer Forums

Write your own tutorials or read those from others Learning Library

On this page