demiGod :

Thankyou for your comment about my project !

About the shadows, I'm really losted by now. In fact, my terrain is nothing else then a model, so I still dont know if the stancil shadows will be renderable on it....

I'm really planniing to bake the shadows in the textures if the stencil shadows will not work.

beegee :

Thankyou for your help, but by now my "point and select" is already working perfectly, using the code PHeMoX posted.