[Chimera-users] Chimera pov-tracing question

[Tom Goddard]

Hi Maya,

  Your mesh is transparent in the povray image (zoom in on the image and 
look at the mesh lines) but I guess is much less transparent than in the 
Chimera window.  I ran some test images with the current Chimera 1.4 
daily build which also showed the povray mesh looked much different 
(darker, thicker and less transparent) than in the Chimera window.  
While we have improved the match between povray images and what you see 
in the Chimera window it is still very bad.  Dozens of messages on the 
chimera-users mailing list relate to the poor quality of Chimera Povray 
images.

http://www.google.com/search?hl=en&q=povray+site%3Awww.cgl.ucsf.edu%2Fpipermail%2Fchimera-users+-filetype%3Agz+site%3Awww.cgl.ucsf.edu%2Fpipermail%2Fchimera-users+-filetype%3Agz&aq=f&oq=&aqi=

As suggested in the following message, with these poor quality povray 
results a better presentation can almost always be obtained by not using 
povray:

    http://www.cgl.ucsf.edu/pipermail/chimera-users/2009-June/004030.html

Attached are 5 test images showing some of the problems. 1mwm chain A, 
molmap 6 angstroms.

test.png - povray transparent mesh 0.24, appears very dark
test2.png - povray transparent mesh 0.04, black specks all over the mesh
test4.png - povray transparent surface 0.24, ugly multilayer mosaic
test5.png - no povray, transparent surf 0.24, glossy lighting, 
silhouette edges
test6.png - no povray, same as test5 but mesh.

    Tom


-------- Original Message --------
Subject: Chimera pov-tracing question
From: maya shcushan
To: 'Thomas Goddard'
Date: 10/7/09 9:59 AM
>
> Dear Dr Goddard,
>
>  
>
> You previously assisted me with other problems with Chimera, so now I 
> am asking your help again.
>
> I have a density map and a structure mapped on it. I showed the map as 
> transparent mesh, and tried to pov-ray the image. However, the picture 
> came up with the map not transparent (attached). Do you have any idea 
> how to resolve this issue, making the map transparent in the image as 
> it is in the main window
>
>  
>
> Thanks,
>
> Best,
>
> *Maya Schushan*
>
> Department of Biochemistry
>
> George S. Wise Faculty of Life Sciences
> Tel Aviv University
>

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