Hi there,

I need to pick some objects with my 3D view.

How can I transform my screen x and y (and some depth) to 3D world coordinates (x, y and z). As I'm not using newton for this I don't know how to do it...

And next I need to test if a sphere is intersected.

Michiel.

(ps, using DirectX, I found some OpenGL but it doesn't help me much)