From: John Stone (
Date: Tue May 26 2009 - 02:42:15 CDT

  As you've noticed, the volumetric coloring isn't (yet) supported
by any of the external renderers. In the next two weeks I'll be working
on getting this working for Tachyon for VMD 1.8.7.
Also, although I won't have time to add it for VMD 1.8.7,
I plan to add support for this to POV-Ray renderings
as well assuming no unsolvable technical issues arise.
The other renderers will likely never support this feature
with full quality since they (to my knowledge) lack the ability to
perform 3-D texturing. It may be possible to have VMD reassign
triangle vertex colors by doing a very crude texture sampling
internally, but this will not produce the same quality image
that one sees in the VMD OpenGL window. In any case, I'll let people
know when a test version is available that implements this in Tachyon.

  John Stone

On Tue, May 26, 2009 at 03:15:44PM +1000, Burak Cankurtaran wrote:
> Hi,
> I just started to use vmd in a more advanced fashion.
> I have a visualisation with isosurfaces and fieldlines
> which are coloured according to volumetric data.
> Apparently these can't be rendered using an external renderer
> in colour. I've only found one email in the archives on this. Do you
> have an idea on when the colouring will be implemented?
> Apologies if this is a common question, first time list user.
> Thanks
> Burak
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