[FReal](API\Runtime\ChaosCore\Chaos\FReal) PhiWithNormal ( const [TVector](API\Runtime\Chaos\Chaos\TVector)< [FReal](API\Runtime\ChaosCore\Chaos\FReal), d > & X, [TVector](API\Runtime\Chaos\Chaos\TVector)< [FReal](API\Runtime\ChaosCore\Chaos\FReal), d > & Normal ) const