I found this 3d rain effect posted by Cloggy
http://forum.thegamecreators.com/?m=forum_view&t=42466&b=6
I like the effect but it does not work when turning the camera around, or looking up and down.
The part I don't understand is the pick vectors in
pick screen screenx#,screeny#,dist#
sx#=get pick vector x()
sy#=get pick vector y()
sz#=get pick vector z()
position object i,cx#+sx#,cy#+sy#,cz#+sz#
I've attached a modified version of the 3d rain code. I added a skybox for movement reference, and attached camera rotation to the mouse.
Let them hate as long as they fear -Caligula