   Selection
  Is there any selection tutorial for opengl. I am trying to implement 3d tic-tac-toe with multiple games in one screen. So I would like to use the mouse for selection. Thus the user will be able to play multiple games.   
  I think you're looking for picking.There are a lot of examples around...[google]   ;  I tried that but thats not very precise. At least not from the .exe the site provided.   ;  What language are you using? What operating system(s) do you need to support?   ;  C++, Opengl with glut. Just a project for windows Vista.   ;  Sorry I can't offer anything more specific, but you should find plenty of relevant resources using these search results. There are several threads there that should help explain what's going on and how to implement picking.   ;  Anyone else have any suggestions?   