Exporting your Movie
Once you've setup your movie as in any of the previous examples, you have a couple options for making a movie.
Export from PyMOL: Newer PyMOLs support
- File→Save Movie As→MPEG
- File→Save Movie As→PNG Images
from the menu.
mpeg: This needs a bit of work. The following instructions work with trunk (1.2r2pre). Compile pymol trunk.
Checkout freemol source from
svn co svn://bioinformatics.org/svnroot/freemol/trunk freemol-trunk
This creates a directory called freemol-trunk. Inside freemol-trunk is a directory called freemol. Now you need to setenv (or export) a variable called FREEMOL pointing to the above folder - freemol). In TCSH and related C-shells:
setenv FREEMOL /my/long/path/to/freemol-trunk/freemol cd freemol-trunk/src/mpeg_encode
or in bash:
export FREEMOL=/my/long/path/to/freemol-trunk/freemol cd freemol-trunk/src/mpeg_encode
(Ignore all other directories inside directory src. These were unnecessary, at least for me.)
./configure make make install
Add these two lines
FREEMOL=/my/long/path/to/freemol-trunk/freemol export FREEMOL
to your pymol script. Launch pymol and Save Movie as MPEG should work now. No need of any complicated codecs.
mpng: You can still use the good old mpng option to save all your frames to disk. You can then compile them into a MPEG (see below).
Old Style: One of the older scripting styles was to make minor changes and dump PNGs. This is essentially obviated with PyMOL's new movie-making functionality. The old style was to simply call cmd.png every time you made a scene change.
- Movie not ray traced? Make sure you set ray_trace_frames to 1.
See Software_Codecs for information on how to stitch together movies from PNGs and optimize them for great crisp-looking movies.