Well, that's what I wanted to say: it's on my radar, but definitely with low priority. Same goes for 2D plotting! But this is supposed to be a brainstorm, so keep the ideas flowing ;) Regarding VTK, yes we had that discussion. Result: As the focus is to create something hackable/extendable from within Julia and not to offer an exhaustive feature set, VTK is out (at least for me).
At the moment, volumetric rendering is very high up in the list, as they don't seem to be well covered by any other package available from Julia. @Job van der Zwan, can you elaborate on this? Voronoi diagrams sound like a nice challenge for the API. Delaunay-Triangulation and Voronoi diagrams are very important algorithms for a lot of different use cases, like for example making a mesh out of point clouds. Seems like some algorithms are on their way: Fast, robust predicates with Julia<https://groups.google.com/forum/#!searchin/julia-users/voronoi/julia-users/rpJs7O5e0pQ/pYE8rva4FqMJ>
