Hi Jeff, Chimera cannot currently create a surface from markers placed with the volume path tracer tool. It would not be so hard to write some Python code to do this. Here is an example of Python code that creates a surface in Chimera: http://www.cgl.ucsf.edu/chimera/docs/ProgrammersGuide/Reference/surface.html Tom Jeff wrote:

hi Tom,

is there a way to use a marker file just to render a surface (a series/group of dots, just needing to be connected by a mesh)? for instance, to represent a membrane.

-Jeff