// Generate a spiral shape for the assigned spline
public void GenerateSpiral(float height, float sizeX, float sizeZ, float angleAccumulation)
// Generate a custom shape for the assigned spline by using AnimationCurves
public void GenerateCustom(
   AnimationCurve pathX, float pathXMultiplier,
   AnimationCurve pathY, float pathYMultiplier,
   AnimationCurve pathZ, float pathZMultiplier)