public static OrthoNormalBasis makeFromW(Vector3D w)
{
OrthoNormalBasis onb = new OrthoNormalBasis();
onb.w.set(w);
onb.w.normalize();
//w.normalize(onb.w);
if ((Math.Abs(onb.w.x()) < Math.Abs(onb.w.y())) && (Math.Abs(onb.w.x()) < Math.Abs(onb.w.z())))
{
onb.v.X = 0;
onb.v.Y = onb.w.z();
onb.v.Z = -onb.w.y();
}
else if (Math.Abs(onb.w.y()) < Math.Abs(onb.w.z()))
{
onb.v.X = onb.w.z();
onb.v.Y = 0;
onb.v.Z = -onb.w.x();
}
else
{
onb.v.X = onb.w.y();
onb.v.Y = -onb.w.x();
onb.v.Z = 0;
}
onb.v.normalize();
onb.u = onb.v.cross(onb.w);
//Vector3.cross(onb.v.normalize(), onb.w, onb.u);
return(onb);
}
public static OrthoNormalBasis makeFromWV(Vector3D w, Vector3D v)
{
OrthoNormalBasis onb = new OrthoNormalBasis();
onb.w.set(w);
onb.w.normalize();
//w.normalize(onb.w);
onb.u = v.cross(onb.w);
onb.u.normalize();
//Vector3.cross(v, onb.w, onb.u).normalize();
onb.v = onb.w.cross(onb.v);
//Vector3.cross(onb.w, onb.u, onb.v);
return(onb);
}