[TArray](API\Runtime\Core\Containers\TArray)< [FKinematicGeometryParticleHandle](API\Runtime\Chaos\Chaos\FKinematicGeometryParticleHandle) * > CreateKinematicParticles ( int32 NumParticles, const [FUniqueIdx](API\Runtime\Chaos\Chaos\FUniqueIdx) * ExistingIndices, const [FKinematicGeometryParticleParameters](API\Runtime\Chaos\Chaos\FKinematicGeometryParticleParame-) & Params )