3D to 2D coordinates
Given a Point3D in virtual universe coordinates (relative to Locale object) I simply need to know where this point will be eventually projected in a Canvas3D object.
I suppose that 2d coordinates depends of some factor like View position and orientation, canvas size, view policy, field of view.
I've found a lot of documentation like this page on wikipedia http://en.wikipedia.org/wiki/3D_projection
but I don't understand the difference between camera position and viewer position.
If someone can help me, i would appreciate it.