public static bool coplanar(Plane a, Plane b)
{
return (a == b || a == PlaneFlip(b));
}
public static Plane PlaneFlip(Plane plane)
{
return new Plane(-plane.normal, -plane.dist);
}
public Plane(Plane p)
{
normal = new float3(p.normal);
dist = p.dist;
}