first,hi@all then,i want to conver sun 3Dpos(xyz)to 2Dpos(xy), and i tried vec_to_screen(sun_pos,camera),and heres my problem: how can i get 2Dposition's vector? like var scr_x; var scr_y; scr_x=vec_to_screen(sun_pos,camera).x //ofcourse this wont work or somethin else? thx !