Hi Jean-Francois, In our early releases with direct POV-Ray image saving, the scale of the result was different - the POV-Ray result was about 75% the scale in Chimera, so you could see things around the edges you couldn't see in Chimera. Is that what you mean? This scaling difference has been fixed. The problem is still there in 1.2352 but it is fixed in 1.2363. If this does sound like the problem you were having, try getting snapshot 1.2363 or newer: http://www.cgl.ucsf.edu/chimera/download.html#snapshots Also, a known current limitation is that things clipped away with the global clipping planes in Chimera will still be included in the POV- Ray result. If it is a different problem, maybe we could understand better if you send a Chimera session and the POV-Ray image file that came from it. I hope this helps, Elaine ----- Elaine C. Meng, Ph.D. meng@cgl.ucsf.edu UCSF Computer Graphics Lab and Babbitt Lab Department of Pharmaceutical Chemistry University of California, San Francisco http://www.cgl.ucsf.edu/home/meng/index.html On Apr 11, 2007, at 4:11 PM, Tom Goddard wrote:

Jean-Francois asks about what is exported to POV-ray.

jean-francois menetret wrote:

...

Hi Thomas,

I have a question about saving ".pov" session

Items of the chimera window that are not shown at the time of the export command are saved in the povray scene. Is that normal ? How can I save one object at a time ?

Jean-Francois

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Hi Jean-Francois, If "A" and "B" are molecule models and/or molecular surfaces, yes. However, there is currently a bug that VRML models (such as generated by Nucleotides, PipesAndPlanks) are included in the pov file and resulting POV-Ray image even when they are not shown in Chimera. To work around this problem, I recommend first saving a session with all your models, then closing the models you don't want in your pov file and image, then saving the pov file. I'll submit a bug report. Thanks for pointing out this problem, Elaine ----- Elaine C. Meng, Ph.D. meng@cgl.ucsf.edu UCSF Computer Graphics Lab and Babbitt Lab Department of Pharmaceutical Chemistry University of California, San Francisco http://www.cgl.ucsf.edu/home/meng/index.html On Apr 11, 2007, at 5:41 PM, jean-francois menetret wrote:

Hi Elaine, I understand what you are talking about and it is great that you fixed it but my question is not related to saving images but '.pov' files. If a chimera session has 2 objects A and B, can you unshow A and save a '.pov' sesion file containing only info from B ? Jean-Francois

Jean-François Ménétret, PhD Boston University School of Medicine Physiology and Biophysics Department 700 Albany Street W315 Boston, MA 02118 Email: menetret@bu.edu Mailing address: 715 Albany Street