Hi! How do I get a 2d click via DirectInput into a 3d ray as in D3D? I have the 3d position+3d rotation (xrot,yrot,zrot). Also how do I draw a ''box'' as in Homeworld, Warzone 2100, other 3d strats, etc. Finally, how do I check that the 3dray has ''clicked'' on a object? I am thinking of working out the distance between the ray and the object, if it is less then a amount set in the objects file, it has clicked, or else not. Any ideas? thx in advance.