From: Mayne, Christopher G (
Date: Mon Jul 21 2014 - 10:32:34 CDT


Taking a look at the tutorial and the graphical representations interface, I don't think that it's designed to show both lobes at the same time from a single representation. The representation is set to a specific isosurface (i.e., + or - phase when there is a node). To see both phases in the VMD window (a la figure 2) you can create two representations, one set to the + phase and the other to - phase; color by ColorID, setting one to 0-blue and the other to 1-red.

Christopher Mayne

On Jul 19, 2014, at 12:38 PM, Darrell Kuykendall wrote:

> Hi, all,
> Iím planning on using the VMD Quantum Chemistry Visualization Tutorial ( this fall in a course. However, orbitals are only rendering with single phases (e.g., only one lobe of p-orbital renders). Advice?
> Iím using the tutorial files provided at and the latest builds of both GAMESS and VMD for Mac OS X.9
> Thanks for any help!
> D