VMD-L Mailing List

From: John Stone (johns_at_ks.uiuc.edu)
Date: Fri Mar 05 2010 - 08:58:23 CST

Olaf,
  There are multiple varieties of cones in VMD. Before we added code
to allow cones to be truncated we always emitted POV-Ray cones. Now
that one can truncate the cone we are generating triangulated cones.
It's not really specific to POV-Ray, it's just that we haven't written
code to do this by any alternative method (e.g. adding a clipping plane
for each cone, or some similar method). If you want to try your hand at
improving the POV-Ray cone export, you can modify the POV-Ray
FileRenderer subclass to do something different.

Cheers,
  John

On Fri, Mar 05, 2010 at 09:31:11AM +0100, Olaf Lenz wrote:
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> Hi!
>
> I noticed that when I create a cone graphics object in VMD and render
> the scene in povray, the cone is not using the povray cone primitive,
> but is triangulated and even introduces a povray macro for that. This is
> not very nice for visualization.
> Curiously, the cone at the end of the axis arrows uses a povray cone.
>
> Is there a specific reason for that, or is the povray cone just not
> implemented?
>
> Best regards
> Olaf
>
>
> - --
> A: Because it messes up the order in which people normally read text.
> Q: Why is top-posting such a bad thing?
> A: Top-posting.
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-- 
NIH Resource for Macromolecular Modeling and Bioinformatics
Beckman Institute for Advanced Science and Technology
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Email: johns_at_ks.uiuc.edu                 Phone: 217-244-3349
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