Hello Trevor, Depth-cueing is always front-to-back, but you can (a) change the direction of the lighting, menu Tools… Viewing Controls… Lighting. After moving the light(s) around on the sphere, you can save the configuration for later uses if you want <http://www.rbvi.ucsf.edu/chimera/docs/UsersGuide/sideview.html#lighting> and/or (b) turn off depth cueing, e.g. with command “~set depthCue” <http://www.rbvi.ucsf.edu/chimera/docs/UsersGuide/midas/set.html#depthcue> Yet another possibility if you are viewing a surface is to color it by distance from a plane (scolor with "geometry height” option), where you define the plane as one side of the viewing area and use a progressively darker color for higher distances. However, it would not continuously update as you rotated, it would just apply to a specific position. <http://www.rbvi.ucsf.edu/chimera/docs/UsersGuide/midas/scolor.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 May 1, 2018, at 4:37 PM, Trevor Harris <trevorha@sas.upenn.edu> wrote:

Hello, I would like to know if it is possible to change the depth cue to side to side rather than front to back. I don’t want to change the position of the molecule. Is it possible? Thanks, Trevor