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  3. UNiagaraDataInterfacePhysicsAsset

UNiagaraDataInterfacePhysicsAsset

Data Interface for interacting with PhysicsAssets

API > API/Plugins > API/Plugins/Niagara

Inheritance Hierarchy

References

   
Module Niagara
Header /Engine/Plugins/FX/Niagara/Source/Niagara/Public/NiagaraDataInterfacePhysicsAsset.h
Include #include "NiagaraDataInterfacePhysicsAsset.h"

Syntax

UCLASS&40;EditInlineNew, Category&61;"Physics", CollapseCategories, Meta&61;&40;DisplayName&61;"Physics Asset"&41;,  
       MinimalAPI&41;  
class UNiagaraDataInterfacePhysicsAsset : public UNiagaraDataInterface

Remarks

Data Interface for interacting with PhysicsAssets

Variables

  Type Name Description
Public variable UProperty Category, EditAnywhere TObjectPtr< UPhysicsAsset > DefaultSource Skeletal Mesh from which the Physics Asset will be found.
Public variable UProperty Category, EditAnywhere FNiagaraUserParameterBinding MeshUserParameter Reference to a user parameter if we're reading one.
Public variable TArray< TWeakObjectPtr< class UPhysicsAsset > > PhysicsAssets The source asset from which to sample
Public variable UProperty Category, EditAnywhere, Meta TSoftObjectPtr< AActor > SoftSourceActor The source actor from which to sample
Public variable TArray< TWeakObjectPtr< class USkeletalMeshComponent > > SourceComponents The source component from which to sample

Constructors

  Type Name Description
Public function    

Functions

  Type Name Description
Public function void

ExtractSourceComponent ( FNiagaraSystemInstance* SystemInstance,
FTransform& LocalTransform
)

 Extract the source component
Public function void

GetClosestDistance ( FVectorVMExternalFunctionContext& Context
)

 Get the closest distance
Public function void

GetClosestElement ( FVectorVMExternalFunctionContext& Context
)

 Get the closest element
Public function void

GetClosestPoint ( FVectorVMExternalFunctionContext& Context
)

 Get the closest point
Public function void

GetElementDistance ( FVectorVMExternalFunctionContext& Context
)

 Get the element distance
Public function void

GetElementPoint ( FVectorVMExternalFunctionContext& Context
)

 Get the element point
Public function void

GetNumBoxes ( FVectorVMExternalFunctionContext& Context
)

 Get the number of boxes
Public function void

GetNumCapsules ( FVectorVMExternalFunctionContext& Context
)

 Get the number of capsules
Public function void

GetNumSpheres ( FVectorVMExternalFunctionContext& Context
)

 Get the number of spheres
Public function void

GetProjectionPoint ( FVectorVMExternalFunctionContext& Context
)

 Get the projection point
Public function void

GetTexturePoint ( FVectorVMExternalFunctionContext& Context
)

 Get the closest texture point

Overridden from UNiagaraDataInterface

  Type Name Description
Public function Virtual Const bool GPU simulation functionality
Public function Virtual Const ETickingGroup

CalculateTickGroup ( const void* PerInstanceData
)

  
Public function Virtual Const bool  
Protected function Virtual Const bool Copy one niagara DI to this
Public function Virtual void

DestroyPerInstanceData ( void* PerInstanceData,
FNiagaraSystemInstance* SystemInstance
)

 Destroys the per instance data for this interface.
Public function Virtual Const bool

Equals ( const UNiagaraDataInterface* Other
)

 Determines if this DataInterface is the same as another.
Public function Virtual void

GetCommonHLSL ( FString& OutHLSL
)

 Allows data interfaces to provide common functionality that will be shared across interfaces on that type.
Public function Virtual bool

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

  
Public function Virtual void UNiagaraDataInterface Interface
Public function Virtual void  
Public function Virtual void

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

 Returns the delegate for the passed function signature.
Public function Virtual Const bool  
Public function Virtual Const bool  
Public function Virtual bool

InitPerInstanceData ( void* PerInstanceData,
FNiagaraSystemInstance* SystemInstance
)

 Initializes the per instance data for this interface.
Public function Virtual Const int32 Returns the size of the per instance data for this interface.
Public function Virtual bool

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

 Ticks the per instance data for this interface, if it has any.
Public function Virtual void

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

 Subclasses that wish to work with GPU systems/emitters must implement this.
Public function Virtual Const void Set the shader parameters will only be called if the data interface provided shader parameters.

Overridden from UNiagaraDataInterfaceBase

  Type Name Description
Public function Virtual Const void Override this method to provide parameters to the GPU (SRV / UAV / Constants / etc) The most common usage will be to provide a single structure which is nested with other parameters.

Overridden from UObject

  Type Name Description
Public function Virtual void UObject Interface
Public function Virtual void Do any object-specific cleanup required immediately after loading an object.

Deprecated Variables

  Type Name Description
Public variable UProperty TObjectPtr< AActor > SourceActor_DEPRECATED  

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