Hi James, In my experience, i get much better images just using Chimera rendering, not POVray. If you want shadows you can turn them on directly in Chimera (e.g. command: set shadows), and some Chimera settings are not relevant to POVray (silhouette edges, etc.). <http://www.rbvi.ucsf.edu/chimera/docs/UsersGuide/print.html#tips> However, if you really want to use it, you can set POV-Ray Options in the Preferences, save the preferences, and then copy that preferences file to the headless machine. Still this is only a small subset of the things one could possibly change in povray, so if you’re a POVray expert you could fiddle with the POVray conf file (see Chimera Log for where this would be), and possibly re-run povray directly using the Chimera-generated .ini and .pov files (from the “copy” command with “raytrace”). <http://www.rbvi.ucsf.edu/chimera/docs/UsersGuide/midas/copy.html> I hope this helps, Elaine ----- Elaine C. Meng, Ph.D. UCSF Chimera(X) team Department of Pharmaceutical Chemistry University of California, San Francisco
On Apr 1, 2019, at 2:58 AM, James Starlight <jmsstarlight@gmail.com> wrote:
P.S. could you also suggest me how it would be possible to change pov-ray options working in Headless Chimera?
I am using it with a simple script:
# make visualisation of b-factors rangecolor bfactor 2 dark red 20 firebrick 40 orange red 60 orange 100 yellow
# make a png immage copy file ${output}/structure/${pdb_name}.png png width 800 height 600 supersample 4 raytrace rtwait" > "${temp}/chimera.${pdb_name}.com"
As the result I have an image with the alpha channel (although I indicated not to use it in my session via chimera-headless ${pdb} script.com --nobgopacity
finally I would like to change some rendeting options using the same scripting work-flow like "Quality", "Antialias depth" etc