I’ve been experimenting with visualization of probability densities (basically, electron clouds). For the time being, I have been using a vast array of varyingly transluscent points in combination with glPointSize() to get the desired 3-D clouding effect. However, this gets very laggy very quickly. Does anyone have any suggestions on a better (and faster) way to display volumetric data in 3D? I have tried using custom fog coordinates, but for some reason glFogCoordf() is having trouble compiling for me.
(see my other post)
http://www.opengl.org/discussion_boards/cgi_directory/ultimatebb.cgi?ubb=get_topic;f=9;t=000306
On the other hand, I’m not sure if glFogCoords work the way I would need them to.
Perhaps volumetric lighting? If anyone has experience with this, let me know. Thanks.