On Dec 14, 2007, at 3:30 AM, William Stein wrote:
> On Dec 14, 2007 3:14 AM, Robert Bradshaw > <[EMAIL PROTECTED]> wrote: >> >> I am extremely impressed! It seems to be specifically optimized for >> rendering molecules, but I'm going to write an exporter for our 3d >> shapes as meshes and see how well it does. > > There is an amazing amount of mathematics, especially combinatorial > structures, etc., for which those sorts of things might be quite > good for us. Yes, for sure. The fact that it natively handles spheres (and cylinders) is a big plus. > By the way, I just got it to work in Sage via the following nutty > sequence > of hacks (see attached screen shot): It was pretty easy to add pmesh output to IndexFaceSet (which underlies all triangulated shapes). I haven't gotten much further than that, but one drawback is that it seems we might need a bunch of separate files to represent a single object. (Of course, it is open source, so we could define our own conglomerate format. Also, perhaps we could pass them around as a single zipped file (both python and java have pretty good support, and it would compress the highly- redundant format as well). It starts to get sluggish at 20 tori (<1K polygons each), wheras the OpenGL stuff doesn't break a sweat until the much, much higher. I don't see any options for controlling lighting, and the camera seems much more limited too. Being pure java is a huge plus though, as is it being maintained, used, and developed by a larger audience. And it's pretty Got to hand it to those chemists! - Robert --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://sage.scipy.org/sage/ and http://modular.math.washington.edu/sage/ -~----------~----~----~----~------~----~------~--~---
