130 lines
9.1 KiB
C++
130 lines
9.1 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "ChaosClothAsset/SimulationBaseConfigNode.h"
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#include "ChaosClothAsset/WeightedValue.h"
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#include "SimulationPBDBendingElementConfigNode.h"
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#include "SimulationXPBDAnisoBendingConfigNode.generated.h"
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/** XPBD anisotropic bending constraint property configuration node. */
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USTRUCT(Meta = (DataflowCloth, Deprecated = "5.4"))
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struct FChaosClothAssetSimulationXPBDAnisoBendingConfigNode : public FChaosClothAssetSimulationBaseConfigNode
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{
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GENERATED_USTRUCT_BODY()
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DATAFLOW_NODE_DEFINE_INTERNAL(FChaosClothAssetSimulationXPBDAnisoBendingConfigNode, "SimulationXPBDAnisoBendingConfig", "Cloth", "Cloth Simulation XPBD Anisotropic Bending Config")
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public:
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/**
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* Method for calculating the rest angles of the constraints.
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*/
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UPROPERTY(EditAnywhere, Category = "XPBDAnisoBending Properties")
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EChaosClothAssetRestAngleConstructionType XPBDAnisoRestAngleType = EChaosClothAssetRestAngleConstructionType::Use3DRestAngles;
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/**
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* Calculate rest angles as a ratio between completely flat and whatever is the 3D rest angle.
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* When FlatnessRatio = 0, this is equivalent to "Use3DRestAngles".
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* When FlatnessRatio = 1, the rest angle will be 0 (completely flat).
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* If a valid weight map is found with the given Weight Map name, then both Low and High values
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* are interpolated with the per particle weight to make the final value used for the simulation.
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* Otherwise all particles are considered to have a zero weight, and only the Low value is meaningful.
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*/
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UPROPERTY(EditAnywhere, Category = "XPBDAnisoBending Properties", Meta = (UIMin = "0", UIMax = "1", ClampMin = "0", ClampMax = "1", EditCondition = "XPBDAnisoRestAngleType == EChaosClothAssetRestAngleConstructionType::FlatnessRatio"))
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FChaosClothAssetWeightedValueNonAnimatable XPBDAnisoFlatnessRatio = { 0.f, 0.f, TEXT("XPBDAnisoFlatnessRatio") };
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/**
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* Set rest angles to be the explicit value set here (in degrees).
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* 0 = Flat, Positive values fold away from the edge normal, Negative values fold toward the edge normal.
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* When converting vertex weight values to edge values, the value with the smallest absolute value is selected.
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* If a valid weight map is found with the given Weight Map name, then both Low and High values
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* are interpolated with the per particle weight to make the final value used for the simulation.
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* Otherwise all particles are considered to have a zero weight, and only the Low value is meaningful.
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*/
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UPROPERTY(EditAnywhere, Category = "XPBDAnisoBending Properties", Meta = (UIMin = "-180", UIMax = "180", ClampMin = "-180", ClampMax = "180", EditCondition = "XPBDAnisoRestAngleType == EChaosClothAssetRestAngleConstructionType::RestAngle"))
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FChaosClothAssetWeightedValueNonAnimatable XPBDAnisoRestAngle = { 0.f, 0.f, TEXT("XPBDAnisoRestAngle") };
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/**
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* The stiffness of the bending constraints in the warp (vertical) direction.
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* If a valid weight map is found with the given Weight Map name, then both Low and High values
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* are interpolated with the per particle weight to make the final value used for the simulation.
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* Otherwise all particles are considered to have a zero weight, and only the Low value is meaningful.
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*/
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UPROPERTY(EditAnywhere, Category = "XPBDAnisoBending Properties", Meta = (UIMin = "0", UIMax = "10000", ClampMin = "0", ClampMax = "10000000"))
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FChaosClothAssetWeightedValue XPBDAnisoBendingStiffnessWarp = { true, 100.f, 100.f, TEXT("XPBDAnisoBendingStiffnessWarp") };
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/**
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* The stiffness of the bending constraints in the weft (horizontal) direction.
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* If a valid weight map is found with the given Weight Map name, then both Low and High values
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* are interpolated with the per particle weight to make the final value used for the simulation.
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* Otherwise all particles are considered to have a zero weight, and only the Low value is meaningful.
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*/
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UPROPERTY(EditAnywhere, Category = "XPBDAnisoBending Properties", Meta = (UIMin = "0", UIMax = "10000", ClampMin = "0", ClampMax = "10000000"))
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FChaosClothAssetWeightedValue XPBDAnisoBendingStiffnessWeft = { true, 100.f, 100.f, TEXT("XPBDAnisoBendingStiffnessWeft") };
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/**
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* The stiffness of the bending constraints in the bias (diagonal) direction.
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* If a valid weight map is found with the given Weight Map name, then both Low and High values
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* are interpolated with the per particle weight to make the final value used for the simulation.
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* Otherwise all particles are considered to have a zero weight, and only the Low value is meaningful.
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*/
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UPROPERTY(EditAnywhere, Category = "XPBDAnisoBending Properties", Meta = (UIMin = "0", UIMax = "10000", ClampMin = "0", ClampMax = "10000000"))
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FChaosClothAssetWeightedValue XPBDAnisoBendingStiffnessBias = { true, 100.f, 100.f, TEXT("XPBDAnisoBendingStiffnessBias") };
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/**
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* The damping of the bending constraints, relative to critical damping.
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* If a valid weight map is found with the given Weight Map name, then both Low and High values
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* are interpolated with the per particle weight to make the final value used for the simulation.
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* Otherwise all particles are considered to have a zero weight, and only the Low value is meaningful.
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*/
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UPROPERTY(EditAnywhere, Category = "XPBDAnisoBending Properties", Meta = (UIMin = "0", UIMax = "10", ClampMin = "0", ClampMax = "1000"))
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FChaosClothAssetWeightedValue XPBDAnisoBendingDamping = { true, 1.f, 1.f, TEXT("XPBDAnisoBendingDamping") };
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/**
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* Once the element has bent such that it's folded more than this ratio from its rest angle ("buckled"), switch to using Buckling Stiffness instead of BendingElement Stiffness.
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* When Buckling Ratio = 0, the Buckling Stiffness will never be used. When BucklingRatio = 1, the Buckling Stiffness will be used as soon as its bent past its rest configuration.
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*/
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UPROPERTY(EditAnywhere, Category = "XPBDAnisoBending Properties", Meta = (UIMin = "0", UIMax = "1", ClampMin = "0", ClampMax = "1"))
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float XPBDAnisoBucklingRatio = 0.5f;
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/**
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* The stiffness after buckling in the warp (vertical) direction.
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* The constraint will use this stiffness instead of element Stiffness once the cloth has buckled, i.e., bent beyond a certain angle.
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* Typically, Buckling Stiffness is set to be less than BendingElement Stiffness.
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* Buckling Ratio determines the switch point between using BendingElement Stiffness and Buckling Stiffness.
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* If a valid weight map is found with the given Weight Map name, then both Low and High values
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* are interpolated with the per particle weight to make the final value used for the simulation.
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* Otherwise all particles are considered to have a zero weight, and only the Low value is meaningful.
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*/
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UPROPERTY(EditAnywhere, Category = "XPBDAnisoBending Properties", Meta = (UIMin = "0", UIMax = "10000", ClampMin = "0", ClampMax = "10000000", EditCondition = "XPBDAnisoBucklingRatio != 0"))
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FChaosClothAssetWeightedValue XPBDAnisoBucklingStiffnessWarp = { true, 50.f, 50.f, TEXT("XPBDAnisoBucklingStiffnessWarp") };
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/**
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* The stiffness after buckling in the weft (horizontal) direction.
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* The constraint will use this stiffness instead of element Stiffness once the cloth has buckled, i.e., bent beyond a certain angle.
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* Typically, Buckling Stiffness is set to be less than BendingElement Stiffness.
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* Buckling Ratio determines the switch point between using BendingElement Stiffness and Buckling Stiffness.
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* If a valid weight map is found with the given Weight Map name, then both Low and High values
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* are interpolated with the per particle weight to make the final value used for the simulation.
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* Otherwise all particles are considered to have a zero weight, and only the Low value is meaningful.
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*/
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UPROPERTY(EditAnywhere, Category = "XPBDAnisoBending Properties", Meta = (UIMin = "0", UIMax = "10000", ClampMin = "0", ClampMax = "10000000", EditCondition = "XPBDAnisoBucklingRatio != 0"))
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FChaosClothAssetWeightedValue XPBDAnisoBucklingStiffnessWeft = { true, 50.f, 50.f, TEXT("XPBDAnisoBucklingStiffnessWeft") };
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/**
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* The stiffness after buckling in the bias (diagonal) direction.
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* The constraint will use this stiffness instead of element Stiffness once the cloth has buckled, i.e., bent beyond a certain angle.
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* Typically, Buckling Stiffness is set to be less than BendingElement Stiffness.
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* Buckling Ratio determines the switch point between using BendingElement Stiffness and Buckling Stiffness.
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* If a valid weight map is found with the given Weight Map name, then both Low and High values
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* are interpolated with the per particle weight to make the final value used for the simulation.
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* Otherwise all particles are considered to have a zero weight, and only the Low value is meaningful.
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*/
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UPROPERTY(EditAnywhere, Category = "XPBDAnisoBending Properties", Meta = (UIMin = "0", UIMax = "10000", ClampMin = "0", ClampMax = "10000000", EditCondition = "XPBDAnisoBucklingRatio != 0"))
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FChaosClothAssetWeightedValue XPBDAnisoBucklingStiffnessBias = { true, 50.f, 50.f, TEXT("XPBDAnisoBucklingStiffnessBias") };
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FChaosClothAssetSimulationXPBDAnisoBendingConfigNode(const UE::Dataflow::FNodeParameters& InParam, FGuid InGuid = FGuid::NewGuid());
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private:
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virtual void AddProperties(FPropertyHelper& PropertyHelper) const override;
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};
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