Yeah, should've explained. I had to emulate in-game behavior to render a scene once, where I had a bunch of grass billboards. The script helped me set them all at once to look at the camera. I think there was an issue too with constraining them to rotate on a single axis, which the script solved. I'm a little sketchy on…
1. Lookat constraint. Script here. 2. Projection map, plus volume light atmos effect. Here's an example of #2 I made awhile back. http://www.ericchadwick.com/examples/images/volumelight_nebula.max [edit: didn't mean to brush off rooster's ideas, I posted last night pretty late. There are many valid ways to skin this cat.…