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Data interface for handling latent (delayed 1 frame) traces against the scene for GPU simulations.
| Name | UNiagaraDataInterfaceAsyncGpuTrace |
| Type | class |
| Header File | /Engine/Plugins/FX/Niagara/Source/Niagara/Classes/NiagaraDataInterfaceAsyncGpuTrace.h |
| Include Path | #include "NiagaraDataInterfaceAsyncGpuTrace.h" |
Syntax
UCLASS (EditInlineNew, Category="Collision", CollapseCategories,
Meta=(DisplayName="Async Gpu Trace"), MinimalAPI)
class UNiagaraDataInterfaceAsyncGpuTrace : public UNiagaraDataInterface
Inheritance Hierarchy
- UObjectBase → UObjectBaseUtility → UObject → UNiagaraNotifyOnChanged → UNiagaraDataInterfaceBase → UNiagaraDataInterface → UNiagaraDataInterfaceAsyncGpuTrace
Constructors
| Name | Remarks | Include Path | Unreal Specifiers |
|---|---|---|---|
UNiagaraDataInterfaceAsyncGpuTrace
(
const FObjectInitializer& ObjectInitializer |
NiagaraDataInterfaceAsyncGpuTrace.h |
Variables
Public
| Name | Type | Remarks | Include Path | Unreal Specifiers |
|---|---|---|---|---|
| MaxRetraces | int32 | If a collision is rejected, how many times do we attempt to retrace from that collision point forward to find a new, valid collision. | NiagaraDataInterfaceAsyncGpuTrace.h |
|
| MaxTracesPerParticle | int32 | The maximum number of traces (per particle) that can be created per frame. | NiagaraDataInterfaceAsyncGpuTrace.h |
|
| TraceProvider | TEnumAsByte< ENDICollisionQuery_AsyncGpuTraceProvider::Type > | Defines which technique is used to resolve the trace - see 'AsyncGpuTraceDI/Provider Priority' in the Niagara project settings. | NiagaraDataInterfaceAsyncGpuTrace.h |
|
Functions
Public
Overridden from UNiagaraDataInterface
| Name | Remarks | Include Path | Unreal Specifiers |
|---|---|---|---|
virtual bool AppendCompileHash
(
FNiagaraCompileHashVisitor* InVisitor |
Allows the generic class defaults version of this class to specify any dependencies/version/etc that might invalidate the compile. | NiagaraDataInterfaceAsyncGpuTrace.h | |
virtual bool CanExecuteOnTarget
(
ENiagaraSimTarget Target |
NiagaraDataInterfaceAsyncGpuTrace.h | ||
virtual void DestroyPerInstanceData
(
void* PerInstanceData, |
Destroys the per instance data for this interface. | NiagaraDataInterfaceAsyncGpuTrace.h | |
virtual void GetCommonHLSL
(
FString& OutHLSL |
Allows data interfaces to provide common functionality that will be shared across interfaces on that type. | NiagaraDataInterfaceAsyncGpuTrace.h | |
virtual void GetFeedback
(
UNiagaraSystem* InAsset, |
Query the data interface to give feedback to the end user. | NiagaraDataInterfaceAsyncGpuTrace.h | |
virtual bool GetFunctionHLSL
(
const FNiagaraDataInterfaceGPUParamInfo& ParamInfo, |
NiagaraDataInterfaceAsyncGpuTrace.h | ||
virtual void GetParameterDefinitionHLSL
(
const FNiagaraDataInterfaceGPUParamInfo& ParamInfo, |
NiagaraDataInterfaceAsyncGpuTrace.h | ||
virtual bool InitPerInstanceData
(
void* PerInstanceData, |
Initializes the per instance data for this interface. | NiagaraDataInterfaceAsyncGpuTrace.h | |
virtual int32 PerInstanceDataSize () |
Returns the size of the per instance data for this interface. | NiagaraDataInterfaceAsyncGpuTrace.h | |
virtual bool RequiresGlobalDistanceField() |
NiagaraDataInterfaceAsyncGpuTrace.h | ||
virtual bool RequiresRayTracingScene() |
NiagaraDataInterfaceAsyncGpuTrace.h | ||
virtual void SetShaderParameters
(
const FNiagaraDataInterfaceSetShaderParametersContext& Context |
Set the shader parameters will only be called if the data interface provided shader parameters. | NiagaraDataInterfaceAsyncGpuTrace.h | |
virtual bool UpgradeFunctionCall
(
FNiagaraFunctionSignature& FunctionSignature |
Allows data interfaces the opportunity to rename / change the function signature and perform an upgrade. | NiagaraDataInterfaceAsyncGpuTrace.h |
Overridden from UNiagaraDataInterfaceBase
| Name | Remarks | Include Path | Unreal Specifiers |
|---|---|---|---|
virtual void BuildShaderParameters
(
FNiagaraShaderParametersBuilder& ShaderParametersBuilder |
NiagaraDataInterfaceAsyncGpuTrace.h |
Overridden from UObject
| Name | Remarks | Include Path | Unreal Specifiers |
|---|---|---|---|
virtual void PostEditChangeProperty
(
FPropertyChangedEvent& PropertyChangedEvent |
NiagaraDataInterfaceAsyncGpuTrace.h | ||
virtual void PostInitProperties() |
NiagaraDataInterfaceAsyncGpuTrace.h | ||
virtual void PostLoad() |
NiagaraDataInterfaceAsyncGpuTrace.h |
Protected
Overridden from UNiagaraDataInterface
| Name | Remarks | Include Path | Unreal Specifiers |
|---|---|---|---|
virtual bool CopyToInternal
(
UNiagaraDataInterface* Destination |
NiagaraDataInterfaceAsyncGpuTrace.h | ||
virtual void GetFunctionsInternal
(
TArray< FNiagaraFunctionSignature >& OutFunctions |
NiagaraDataInterfaceAsyncGpuTrace.h | ||
virtual void PushToRenderThreadImpl() |
NiagaraDataInterfaceAsyncGpuTrace.h |