HI Shawn, The OSG can handles scenes with thousands of objects, and millions of polygons on modern machines at a solid 60Hz, the numbers of objects you are talking about suggest there is something wrong with how you are setting up your app. Could it be that you are doing a single quad per geometry? This isn't an efficient way to do rendering. Could it be that you are compiling with a debug build and then doing benchmarking?
Robert. On 10/19/07, Shawn Cook <[EMAIL PROTECTED]> wrote: > > Hi, Trying to do something simple and getting a poor framerate. I'm sure > it's just something I don't know about OSG and need to learn, perhaps you > folks can help. Basically, imagine a camera positioned above a grid with > anywhere from 100 to 5000 quads of similar size shuffling around on the 2D > plane with the grid. The position of each of these quads is controlled in > real time by a seperate Java app via multicast. > > My coworker is working on an identical project in parallel to mine on an > identical laptop but is using Cocoa(Mac OS X 10.5) and straight OpenGL. He > is getting a framerate of 100+ frames per second with 500 quads while I > cannot get more than 30fps with 500. That framerate is acceptable, but > eventually I would like to do more than just draw quads. Instead, each quad > will be a little "tail" of quads following a "head" around - like tracers or > a little snake. Again, my coworker has done this already and is acheiving a > similarly phenominal framerate - If I add just a couple quads my framerate > drops. What's the deal? At first I was using a single geode, geometry > object and vec3array for each quad and was getting an unusable framerate. > When I restructured with a single geode, geometry for the application and > one large vec3array for all the quads my framerate got up to where it is now > (acceptable, but slow when I add the tracers). > > How can I acheive 100+ fps like my friend? > > System info: > MacBook Pro 1,1 > Windows XP (using Bootcamp) > 1MB RAM > 2GHz Dual Core > OpenSceneGraph 2.0.0 > VRJuggler 2.0.3-1 > > Also, this is a VRJuggler/OpenSceneGraph application - perhaps if you guys > can't help I'll hit up the VRJuggler mailing lists for some help. > > Thanks folks, > S > > ________________________________ > Help yourself to FREE treats served up daily at the Messenger Café. Stop by > today! > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
