From: John Stone (
Date: Tue Jun 16 2009 - 09:59:26 CDT

  In order to use the "ppmtompeg" tool within the VMD movie maker,
you should verify that you're able to run it manually as well.

What happens if you do something like this from a terminal window:

johns_at_casablanca{64} /usr/local/bin/ppmtompeg --version
ppmtompeg: Using libnetpbm from Netpbm Version: Netpbm 10.25
ppmtompeg: Compiled Thu Apr 12 16:21:58 EDT 2007 by user "brewbuilder"
ppmtompeg: BSD defined
ppmtompeg: RGB_ENV='RGBDEF'
ppmtompeg: RGBENV= 'RGBDEF' (env vbl is unset)

  John Stone

On Tue, Jun 16, 2009 at 10:44:48AM -0400, Alison Grinthal wrote:
> Hi - I'm trying to make a simple movie of a trajectory in VMD 1.8.4 on a
> MacOS X 10.3.9, and even though I've installed fink and netpbm and (I
> thought) followed the instructions I still seem to be getting stuck at the
> ppm to mpeg stage - first it says it can't locate ppmtompeg, and when it
> gives me an option to specify its path and I choose ppmtompeg, it says it
> can't execute it. I'm not familiar with fink or netpbm, so it's quite
> possible I'm missing something obvious - would someone be able to help?
> Thanks.

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