[FPBDRigidParticleHandle](API\Runtime\Chaos\Chaos\FPBDRigidParticleHandle) * FindClosestChild ( const [FPBDRigidClusteredParticleHandle](API\Runtime\Chaos\Chaos\FPBDRigidClusteredParticleHandle) * ClusteredParticle, const [FVec3](API\Runtime\ChaosCore\Chaos\FVec3) & WorldLocation ) const