Hi Rebecca! The coloring part of Render by Attribute can be done with the "rangecolor" command: <http://www.cgl.ucsf.edu/chimera/current/docs/UsersGuide/midas/rangecolor.htm...> For example, to color molecular surfaces only (not atoms, ribbons, labels, etc.) based on values of the attribute named kdHydrophobicity: rangecol kdHydrophobicity,s -4.0 lime green 0.0 white 4.0 brown You can also use min, mid, max instead of specific values, and many possible colors: <http://www.cgl.ucsf.edu/chimera/current/docs/UsersGuide/midas/color.html#col...> There aren't commands for the other parts of Render by Attribute (radii, worms), but luckily it sounds like you are interested in the coloring part. I hope this helps, Elaine ----- Elaine C. Meng, Ph.D. UCSF Computer Graphics Lab (Chimera team) and Babbitt Lab Department of Pharmaceutical Chemistry University of California, San Francisco On Apr 18, 2012, at 6:25 PM, rswett@chem.wayne.edu wrote:

So, I"m wondering if there's a way to call "Render by Attribute" command line for movie making purposes. I have several Defined Attributes and i'd like to be able to recolor surfaces by the various attributes at different points in a movie. What would the format for that type of command be? Thanks for any help you guys have! ~Rebecca