Hi, I have a Python script that sets a system up and then calls cmd.png() to render an image. I use it to process several files at a time, and there's no need to look at it while it's working, so I use
pymol -qcr myscript.py to launch it. It works fine when I ray trace things, but if I just set the system up and call cmd.png(), I get this error: ScenePNG-WARNING: invalid context or no image. Calling cmd.draw() instead of cmd.ray() doesn't seem to fix things. Any ideas? Some of the systems are big enough that cmd.ray() fails, so I'd like to be able to find a workaround. Thanks, -michael -- Biophysics Graduate Student Carlson Lab, University of Michigan http://www.umich.edu/~mlerner
