Hi there, Thanks to a pointer from Rick Wagner, I've taken a bit of time to put some simple volume rendering into yt. This is all based on the S2PLOT library (http://astronomy.swin.edu.au/s2plot/index.php?title=S2PLOT). Right now there are convenience functions for putting phase plots and standard unigrid data into a window, interacting, adding isosurfaces and adding particles. If you want to play with this, I've added two recipes to the Trac wiki: http://yt.enzotools.org/wiki/Recipes/SimpleVolumeRendering http://yt.enzotools.org/wiki/Recipes/BinnedProfile3D Data-serialization of 3D profiles has been added, but as of right now the convenience functions for adding new 3D plots of serialized data are not there. The goal would be to generate a profile object on a different machine than the one it is plotted on; I will have recipes for doing that at some point in the near future. (As my research demands -- and boy does it demand it lately! :) One of the coolest things about this is that you can feed in a parameter to the S2PLOT command to get a huge, stereo window for display on a wall. -Matt P.S. The installation method for S2PLOT is slightly peculiar, but ultimately it worked for me... I haven't tried it on anything other than OSX, however.