Hi, On Fri, 2006-09-15 at 15:16 -0500, Dirk Reiners wrote: > Hi Allen, > > I know you have your marketing head on, but technically I'm not too > worried about this one. > > Allen Bierbaum wrote: > > It looks like OSG just released a new version (that was pretty quick). > > > > See: http://www.openscenegraph.org/osgwiki/pmwiki.php/News/News#osg_1.2 > > > > The main things they have added are: > > > > * COLLADA plugin support for both the reading and writing of COLLADA > > 1.4 .dae files. > > > That's a nice one, admitted.
but, after having tried to work with it for Max <-> Maya <-> XSI, highly overrated. What is out there currently does not live up to what they are aiming at. We never really managed to move any slightly complex model between these tools, no two loaders/writers are the same. > > * GPU timing stats have been added to the viewer class, provided the > > time taken to process allow drawing operations down on the GPU for > > the previous frame. Coupled with the existing timing of CPU > > update, cull and draw dispatch the stats reporting now provides > > the end user with a clearer idea of whether their application is > > CPU or GPU limited and server as a better guide to performance > > optimization work > > > > GPU timing information, > > > Leaves: easy. I can give hints how to do it. No time to do it myself > right now. :( I need timings anyway and going to add some sooner than later, so you can pass me the hints, so I don't have to reinvent them ;-) > > and processor affinity. > Trivial. > > Is there anything we can learn from their > > COLLADA loader and writer? Not really. Compared to what the loader in 2.x does they are not that far ahead ;-). Both use COLLADA_DOM and I find that our approach has more potential. They do the simple dump and run game (dump the DOM tree to OSG, delete the DOM tree, and run). We use the integration approach so if we want to we can keep the DOM tree around include the mapping relation between OpenSG and DOM. Another small hint, for the marketing department, reading 1.4 and understanding 1.4 are two different things. As we they can read complete 1.4 documents (because the DOM does it for both) but their understanding (e.g. creating OSG, OpenSG structures) is as bad as ours. Ok, we cannot write right now but this is usually the easier part ;-) So if anybody wants to start the race they don't have much of a head start (Only a few more primitive types and textures). Here I can provide the hints if needed. If somebody wants to take it back to 1.x, it should not be that difficult. Mainly the geometry mapping must be changed. The most important thing on my todo list would be fixing the database that comes with COLLADA_DOM so it supports all reference variations collada allows. This is where I got stuck while doing the texture support ;-) regards, gerrit ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Opensg-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/opensg-users
