UNiagaraDataInterfacePressureGrid

Data Interface for the strand base

Windows
MacOS
Linux

Inheritance Hierarchy

References

Module

HairStrandsCore

Header

/Engine/Plugins/Runtime/HairStrands/Source/HairStrandsCore/Public/Niagara/NiagaraDataInterfacePressureGrid.h

Include

#include "Niagara/NiagaraDataInterfacePressureGrid.h"

Syntax

[UCLASS](Programming/UnrealArchitecture/Reference/Classes#classdeclaration)(EditInlineNew, Category="Grid", Meta=(DisplayName="Pressure Grid"))
class UNiagaraDataInterfacePressureGrid : public UNiagaraDataInterfaceVelocityGrid

Remarks

Data Interface for the strand base

Constructors

Name Description

Public function

UNiagaraDataInterfacePressureGrid

(
    const FObjectInitializer& ObjectIn...
)

Functions

Name Description

Public function

void

 

BuildDensityField

(
    FVectorVMContext& Context
)

Build the Density Field

Public function

void

 

BuildDistanceField

(
    FVectorVMContext& Context
)

Build the velocity field

Public function

void

 

ComputeBoundaryWeights

(
    FVectorVMContext& Context
)

Compute the solid weights

Public function

void

 

GetDensityField

(
    FVectorVMContext& Context
)

Get Density Field

Public function

void

 

GetNodePosition

(
    FVectorVMContext& Context
)

Get Node Position

Public function

void

 

ScaleCellFields

(
    FVectorVMContext& Context
)

Scale Cell Fields

Public function

void

 

SetSolidBoundary

(
    FVectorVMContext& Context
)

Set the solid boundary

Public function

void

 

SolveGridPressure

(
    FVectorVMContext& Context
)

Project the velocity field to be divergence free

Public function

void

 

UpdateDeformationGradient

(
    FVectorVMContext& Context
)

Update the deformation gradient

Overridden from UNiagaraDataInterface

Name Description

Public function Virtual Const

bool

 

AppendCompileHash

(
    FNiagaraCompileHashVisitor* In...
)

GPU simulation functionality

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 FNiagaraDataInterfaceGPUParam...,
    const FNiagaraDataInterfaceGenerate...,
    int FunctionInstanceIndex,
    FString& OutHLSL
)

Public function Virtual

void

 

GetFunctions

(
    TArray< FNiagaraFunctionSignature >...
)

UNiagaraDataInterface Interface

Public function Virtual

void

 

GetParameterDefinitionHLSL

(
    const FNiagaraDataInterfaceGPUParam...,
    FString& OutHLSL
)

GPU simulation functionality

Public function Virtual

void

 

GetVMExternalFunction

(
    const FVMExternalFunctionBindingInf...,
    void* InstanceData,
    FVMExternalFunction& OutFunc
)

Returns the delegate for the passed function signature.

Public function Virtual Const

bool

 

HasPreSimulateTick()

Overridden from UNiagaraDataInterfaceBase

Name Description

Public function Virtual

void

 

BindParameters

(
    FNiagaraDataInterfaceParametersCS&...,
    const FNiagaraDataInterfaceGPUParam...,
    const FShaderParameterMap& Paramet...
)

Methods that operate on an instance of type FNiagaraDataInterfaceParametersCS*, created by the above CreateComputeParameters() method

Public function Virtual Const

FNiagaraData...

 

CreateComputeParameters()

Constructs the correct CS parameter type for this DI (if any).

Public function Virtual Const

const FTypeL...

 

GetComputeParametersTypeDesc()

Public function Virtual Const

void

 

SetParameters

(
    const FNiagaraDataInterfaceParamete...,
    FRHICommandList& RHICmdList,
    const FNiagaraDataInterfaceSetArgs ...
)

Public function Virtual Const

void

 

UnsetParameters

(
    const FNiagaraDataInterfaceParamete...,
    FRHICommandList& RHICmdList,
    const FNiagaraDataInterfaceSetArgs ...
)
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