VMD-L Mailing List

From: apeyser_at_newssun.med.miami.edu
Date: Wed Feb 23 2005 - 15:45:26 CST

John,

Yes, with internal tachyon I get the same results. Another feature of this
behavior is that the gray zone appears to have a sharp cutoff. For some range
around 0.5, it is exactly gray, and on either side of that range the normal
behavior appears to take over sharply.

Thanks,
Alex

>Alex,
> Do you have a similar problem if you render the image with Tachyon, or
>is this specific to just POV-Ray?
>
>Thanks,
> John Stone
> vmd_at_ks.uiuc.edu

>On Tue, Feb 22, 2005 at 07:34:47PM -0000, apeyser_at_newssun.med.miami.edu wrote:
>>
>>
>>
>> I'm attempting to render a vmd scene composed of spheres colored with the User
>> method, in pov-ray.
>>
>> When rendered in OpenGL, I get the proper mapping of User values to Color, a
>> smooth mapping from red for min, green for mid and blue for max. However, the
>> .pov file produced by vmd is mapping the mid colors to
>> rgbt<0.350,0.350,0.350,0.7>, which is gray instead of green. The min and max
>> colors are mapped properly to red and blue, respectively.
>>
>> I have been able to test with 1.8.3 and 1.8.3b.
>>
>> Thanks,
>> Alex Peyser

>--
>NIH Resource for Macromolecular Modeling and Bioinformatics
>Beckman Institute for Advanced Science and Technology
>University of Illinois, 405 N. Mathews Ave, Urbana, IL 61801
>Email: johns_at_ks.uiuc.edu Phone: 217-244-3349
> WWW: http://www.ks.uiuc.edu/~johns/ Fax: 217-244-6078

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