/// <summary> Map ray *from* local frame coordinates into "world" coordinates </summary>
public Ray3f FromFrame(Ray3f r)
{
return(new Ray3f(FromFrameP(r.Origin), FromFrameV(r.Direction)));
}
///<summary> Map ray *into* local coordinates of Frame </summary>
public Ray3f ToFrame(Ray3f r)
{
return(new Ray3f(ToFrameP(r.Origin), ToFrameV(r.Direction)));
}