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  3. FCollisionContextAllocator

FCollisionContextAllocator

Container the storage for the [FCollisionConstraintAllocator](API\Runtime\Chaos\Chaos\Collision\FCollisionConstraintAllocator), as well as the API to create new midphases and collision constraints.

API > API/Runtime > API/Runtime/Chaos > API/Runtime/Chaos/Chaos > API/Runtime/Chaos/Chaos/Collision

References

   
Module Chaos
Header /Engine/Source/Runtime/Experimental/Chaos/Public/Chaos/Collision/CollisionConstraintAllocator.h
Include #include "Chaos/Collision/CollisionConstraintAllocator.h"

Syntax

class FCollisionContextAllocator

Remarks

Container the storage for the FCollisionConstraintAllocator, as well as the API to create new midphases and collision constraints. We have one of these objects per thread on which collisions detection is performed to get lock-free allocations and lists.

Constructors

  Type Name Description
Public function  

FCollisionContextAllocator ( FPBDCollisionConstraints* InCollisionContainer,
const int32 InNumCollisionsPerBlock,
const int32 InCurrentEpoch
)

  

Functions

  Type Name Description
Public function bool Set the constraint as Active - it will be added to the graph and solved this tick.
Public function FPBDCollisionConstraintPtr Create an uninitialized collision constraint (public only for use by Resim which overwrites it with a saved constraint)
Public function FPBDCollisionConstraintPtr

CreateConstraint ( FGeometryParticleHandle* Particle0,
const FImplicitObject* Implicit0,
const FPerShapeData* Shape0,
const FBVHParticles* Simplicial0,
const FRigidTransform3& ShapeRelativeTransform0,
FGeometryParticleHandle* Particle1,
const FImplicitObject* Implicit1,
const FPerShapeData* Shape1,
const FBVHParticles* Simplicial1,
const FRigidTransform3& ShapeRelativeTransform1,
const FReal CullDistance,
const bool bUseManifold,
const EContactShapesType ShapePairType
)

 Create a constraint (called by the MidPhase)
Public function FParticlePairMidPhase *

FindMidPhase ( FGeometryParticleHandle* Particle0,
FGeometryParticleHandle* Particle1,
FGeometryParticleHandle* SearchParticlePerformanceHint
)

 Return a midphase for a particle pair if it already exists, otherwise return null
Public function Const int32 The current epoch used to determine if a collision is up to date
Public function FParticlePairMidPhase *

GetMidPhase ( FGeometryParticleHandle* Particle0,
FGeometryParticleHandle* Particle1,
FGeometryParticleHandle* SearchParticlePerformanceHint,
const FCollisionContext& Context
)

 Return a midphase for a particle pair.

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