   Handling 3D objects
  Hi, I'm working with some 3D objects (box, cylinder) and i would like toemulate the object handle like most of graphics software, so when ido click on one object appears four or six points to stretch or translatethe selected objectex: http://img215.imageshack.us/img215/5261/asideroiq5.jpgif there are some technique to find and implement i'm using vb.net and dx9 but help in any other languaje are welcome too :)thanks in advance    
  I'd start simple.  First, draw your lines when a user clicks/un clicks on the screen.1) If User Clicks, start point = x,y;2) OnMouseMove, endpoint = current mouse x,y;3) When User lets go, you now have start x,y & end x,y;4) project those as rays into your 3d scene.5) Test geometry against that frustum and see if they are within over 50%6) if so, store it has selected!Jeff.   ;  thanks   