Sorry if it is noobish. I just need help.
nevermind. I got it.
There’s a few ways to do it.
Here’s the really basic way http://blender3dtutor.com/modules/smartsection/item.php?itemid=25.
Here’s another way that has camera detection collision on it http://www.blending-online.co.uk/8501/49279.html.
Jason Lin