[PyMOL] Ray-trace of volume visualization

[Per L. <per...@sb...>]

Hi!

Following up on my earlier post http://sourceforge.net/mailarchive/message.php?msg_id=30017929, I have managed to make some very nice volume visualizations in Pymol.

I now wonder about the possibilities of ray-tracing the volume? I should add that I'm not a graphics guru, so maybe this does not make sense at all.
Essentially, I have my volume, and also in the same view a protein. When I type 'ray' to ray-trace everything, only the protein is visible. I also tried exporting everything to a .wml file (save myscene.wml) and converting that file to a .pov for ray-tracing in povray, but again only the protein is visible. 

So, my question is if it is possible to somehow improve the (already very nice) volume visualization, or is what you see on screen also the "only" thing you can get when saving a png-image?

Many thanks
/Per