public Vec4i(Vec3i vec, int w)
{
X = vec.X;
Y = vec.Y;
Z = vec.Z;
W = w;
}
public Vec2i(Vec3i vec)
{
X = vec.X;
Y = vec.Y;
}
public static Vec3 ToVec(this Vec3i vec)
{
return(new Vec3(vec.X, vec.Y, vec.Z));
}