122 lines
4.2 KiB
Ucode
122 lines
4.2 KiB
Ucode
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/*=============================================================================
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FlexAsset.uc: Flex Asset.
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Copyright 1998-2013 Epic Games, Inc. All Rights Reserved.
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=============================================================================*/
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/* A Flex asset contains the particle and constraint data for a shape, such as cloth, rigid body or inflatable, an asset
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is added to a container by spawning through a particle system or Flex actor */
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class FlexAsset extends Object
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native(Physics)
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editinlinenew
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hidecategories(Object);
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/** The Flex asset type */
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enum EFlexAssetType
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{
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FLEX_Cloth, // a particle/constraint network
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FLEX_Solid, // solid sampling of the mesh interior for rigid bodies
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};
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//=============================================================================
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// Flex Container Parameters
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//=============================================================================
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/** The asset type, can either be a thin shell (cloth), or a solid (rigid body) */
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var(Common) EFlexAssetType Type;
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// NVCHANGE_BEGIN: HLLU - Add flex container to flex asset
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/** The flex container this asset will use. This container can be overwritten by the FlexActor's container */
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var (Common) FlexContainer FlexAssetContainerTemplate;
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/** The phase-id to assign to particles spawned for this mesh. This can be overwritten by the FlexActor's FlexComponentPhaseId */
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var (Common) int FlexAssetPhaseId;
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/** If true then the particles will be auto-assigned a positive phase-id. This bool can be overwritten by the FlexActor's bFlexComponentAutoAssignPhase */
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var (Common) bool bFlexAssetAutoAssignPhase;
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// NVCHANGE_END: HLLU - Add flex container to flex asset
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/** The per-particle mass to use for the particles, for clothing this value be multiplied by 0-1 dependent on the vertex color */
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var(Common) float Mass;
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/** How much the cloth resists stretching */
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var(Cloth) float StretchStiffness;
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/** How much the cloth resists bending */
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var(Cloth) float BendStiffness;
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/** How strong tethers resist stretching */
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var(Cloth) float TetherStiffness;
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/** How much tethers have to stretch past their rest-length before becoming enabled, 0.1=10% elongation */
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var(Cloth) float TetherGive;
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/** Can be enabled for closed meshes, a volume conserving constraint will be added to the simulation */
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var(Inflatable) bool bEnableInflatable;
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/** The inflatable pressure, a value of 1.0 corresponds to the rest volume, 0.5 corressponds to being deflated by half, and values > 1.0 correspond to over-inflation */
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var(Inflatable) float OverPressure;
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/** The rigid body stiffness */
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var(Rigid) float RigidStiffness;
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/** The spacing to use when sampling solid shapes with particles, this should be close to radius of the container this asset will be spawned in */
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var(Rigid) float RigidSamplingDistance;
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/** Store the rigid body center of mass, not editable */
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var vector RigidCenter;
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var float InflatableStiffness;
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var float InflatableVolume;
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// the particles and constraints created from the mesh
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var array<Vector4> Particles;
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var array<INT> Phases;
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var array<INT> SpringIndices;
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var array<float> SpringCoefficients;
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var array<float> SpringRestLengths;
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// faces for cloth
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var array<INT> Triangles;
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var array<INT> VertexToParticleMap;
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var transient native const pointer Object {struct FlexExtObject};
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cpptext
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{
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#if WITH_EDITOR
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virtual void PostEditChangeProperty(FPropertyChangedEvent& PropertyChangedEvent);
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#endif // WITH_EDITOR
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virtual void PostLoad();
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virtual void BeginDestroy();
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virtual void Serialize(FArchive& Ar);
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#if WITH_FLEX
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FlexExtObject* GetFlexExtObject();
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#endif //WITH_FLEX
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void ReImport(const UStaticMesh* Parent);
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}
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defaultproperties
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{
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Type = FLEX_Cloth
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// NVCHANGE_BEGIN: HLLU - Add flex container to flex asset
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FlexAssetPhaseId = 0
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bFlexAssetAutoAssignPhase = true
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// NVCHANGE_END: HLLU - Add flex container to flex asset
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Mass = 1.0f
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StretchStiffness = 1.0f
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BendStiffness = 1.0f
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TetherStiffness = 1.0f
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TetherGive = 0.1f
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bEnableInflatable = false
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OverPressure = 1.0f
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InflatableStiffness = 1.0f
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RigidStiffness = 0.0f
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RigidSamplingDistance = 40.0f
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}
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