I came across this site a long time ago. I hope that it makes it into POV-Ray 3.5, It would be really a great addition, or at least I think it would. I don't know enough about it to really judge, but it looks like it could cut down on memory usage. I talked with someone there and they said they are working on a patch or getting it into POV-Ray officially. Anyone have any more information? I would love to know. Check out the site.