Hi Sudheer, The "image tips" page gives several hints for preparing images, including making surfaces smooth: <http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/print.html#tips> However, for maps it only says to use Volume Viewer and does not give the details, so I will give them here: - in Volume Viewer's menu choose "Features... Surface and Mesh options" - that will put more options on the dialog, including "Surface smoothing iterations..." "Subdivide surface..." that you can try adjusting to smooth the surface You can also adjust those same settings using the surface and mesh display options of the "volume" command: <http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/midas/volume.html> If you save images directly from Chimera instead of raytracing, you can also make everything look smoother by using glossy lighting. If available (not all computers can do it), it can be turned on with the "set" command or in the Lighting tool. 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 Feb 3, 2010, at 12:32 PM, sudheer molugu wrote:

Hi,

I've installed the latest chimera version. I wanted take pov-ray pictures of a cryo-EM map. I would greatly appreciate if you can help me in make the map surface smooth. I couldn't find the option for smooth surface.

Thank you, Sudheer.