perturb
inline fun (Int, Vector2) -> Double.perturb(crossinline distort: (Vector2) -> Vector2): (Int, Vector2) -> Double(source)
inline fun (Int, Double, Double) -> Double.perturb(crossinline distort: (Vector2) -> Vector2): (Int, Double, Double) -> Double(source)
inline fun (Int, Vector3) -> Double.perturb(crossinline distort: (Vector3) -> Vector3): (Int, Vector3) -> Double(source)