Thanks guys, I am still trying to find a way to sort real polygons since performance in my case are not the main concern. Theoretically it shouldn't be difficult at all (to do it for one single geometry) I just need an hook that tells me "hey your geometry is going to be drawn using this matrices/camera". I am not sure if node callbacks can be used for this, then I would create a special Geode that sorts the polygons of its Geometry objects. From Geode I can retrieve the local to world transform, then to get the view transform I have to track the camera object somehow.
If this doesn't work I will try subdividing the mesh in small blocks each going in a different geometry so that OSG can sort them. The result won't be spectacular but better than nothing. Joachim: My isosurface represent chemical energy fields so they can be quite messy. Unfortunately I have to rely on conservative OpenGL features for compatibility issues otherwise that would be the preferred way to go also for the quality of the results. Thanks, Mike _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
