Re: [PyMOL] Raytracing interior surfaces. Problems in both PyMol and PovRay

[Daniel R. <dr...@li...>]

Hi Jacob

In Pymol, have you tried adding in a direct light source? e.g.

set direct, 0.5

It worked nicely in a similar situation for me

Daniel

On Wed, 2005-11-23 at 11:42 +0100, Jacob Poehlsgaard wrote:
> Hi folks
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>  I=FFm trying to visualize a section of the inner workings of the
> ribosome. To this end I=FFve generated a surface and clipped it to
> reveal the internal structure I want to look at. This looks really
> good in the normal openGL view. When I raytrace it however, the part
> that=FFs clipped away still throws a shadow, so everything is completely
> dark. I know I could turn shadows off, but I=FFd really like to keep
> them for things that=FFs visible.
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>  I also tried exporting to PovRay, but unfortunately the clipping
> plane isn=FFt really implemented in the export methods I tried (using
> the renderer=3D1 command and the script from
> http://adelie.biochem.queensu.ca/~rlc/work/pymol/ ).
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>  I can extract the coordinates for the plane and put it into pov-ray,
> but because the surface is exported as thousands of little mesh2
> objects, I can=FFt seem to explain to povray that they should all be
> =B4clipped_by=A1 the plane. If I make a union or merge of the mesh2
> objects, it works, but this is not a realistic solution, as the
> processor time needed is massive, even for simple test objects.
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>  Does anyone have suggestions to fix this, using either the internal
> renderer og pov-ray?
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> Sincerely
> Jacob Poehlsgaard
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> SDU, Denmark
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Dr Daniel John Rigden                     Tel:(+44) 151 795 4467
School of Biological Sciences             FAX:(+44) 151 795 4406
Room 101, Biosciences Building
University of Liverpool
Crown St.,
Liverpool L69 7ZB, U.K.