VMD-L Mailing List

From: Burak Cankurtaran (Burak.O.Cankurtaran_at_alumni.uts.edu.au)
Date: Tue May 26 2009 - 21:17:36 CDT

Thats great news - it will be good timing with my work.
I'll try Axel's approach as well, but I am running linux with
an ATI X1600 graphics card - I don't think the GLSL shading
language is supported by the drivers.

Thanks
Burak

John Stone wrote:
> Hi,
> 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.
>
> Cheers,
> John Stone
> vmd_at_ks.uiuc.edu
>
> 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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