FCollisionParticlePairConstraintKey ( const FShapeInstance* Shape0, const FImplicitObject* Implici..., const int32 ImplicitId0, const FBVHParticles* Simplicia..., const FShapeInstance* Shape1, const FImplicitObject* Implici..., const int32 ImplicitId1, const FBVHParticles* Simplicia... )