Hi Frank, There are currently no Chimera commands for volume surfaces, and there are not commands to control per-model clipping. We wish to add these commands and others so that movie making is more powerful. Currently we are writing a renewal of our major 5-year grant due June 1 so it will probably not be possible for me to add these commands before then. Here is what is available now. There is a command for changing isosurface threshold level. It is part of "Animation commands" on the Chimera experimental features page. http://www.cgl.ucsf.edu/chimera/experimental/experimental.html It is not part of any Chimera distribution but can be downloaded separately and use with your current Chimera. The most practical way to gradually change from a surface to mesh would be to open the model twice, then gradually change the mesh color from completely transparent to opaque, then gradually change the surface from completely opaque to completely transparent. You can't do those two steps simultaneously because Chimera unfortunately does not correctly display two transparent models -- only one at a time. There are no commands to do volume surface color fades. You can do the color fades though using the Chimera animation editor called EMANimator distributed with EMAN. http://ncmi.bcm.tmc.edu/~stevel/EMAN/doc/ Get the latest EMAN distribution (nightly build) because it also is able to move per-model clip planes. To use EMANimator you install EMANimator the use Chimera menu Favorites / Preferences, category tools and add the EMAN chimeraext directory /usr/local/EMAN/chimeraext to the list of locations Chimera looks for extensions in. Here is some documentation I wrote for an older EMANimator version. http://www.cgl.ucsf.edu/chimera/related/emanimator/emanimator.html This is not an entirely trivial tool to use. It lets you create a timeline of transitions and preview them, and record a movie. The drawback is that it only supports a limited set of smooth transitions, mostly related to volume data display. It does not for instance handle 2D labels. Maybe you could add those in an external movie editor. Using EMANimator is a totally separate option from using Movie Recorder and commands. If you want to know all the current Chimera commands with "frame" options that can do transitions it is a short list: http://www.cgl.ucsf.edu/chimera/docs/ContributedSoftware/recorder/moviecomma... Unfortunately our animation tools are quite primitive now and you will need to make compromises if you want to use them. We are proposing to significantly improve animation capabilities in our new grant and will work on it even before then. So feedback about what is important to you is welcome. Tom -------------
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Thomas Goddard