how to get the screen point of the gameobject in the world space

Unity Engine
1

Hello, friends!

Again I encouter problem.

As the gameobject in the world space rotating,its screen point changes too,I know the function “onmouseover” or others could get it,but now I need the screen axis of the 3D gameobject without any window messages’ help, could anyone tell me what is the best way? An example code would be more helpful. Or is there a function that can finish it. Thank you very much for your focus!!

2

http://unity3d.com/support/documentation/ScriptReference/Camera.ScreenToWorldPoint.html

3

Thank you , but I want the opposite function , such as “woldspacetoscreen” .

4