Thanx Robert for your reply. With single view I have 50 fps with stereo I have 25 fps. It is very predictable result. Event 0.05 Update 1.36 (two Intersense InertiaCube3 sensors) Cull 5.2 (clouds) Draw 2.16 (ephemeris,clouds) GPU 27.2 I simply try to improve it. I have single 8600GT. But for stereo config I will use double GTX280. Hopes that It will change situation. Bye
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Robert Osfield Sent: Thursday, December 11, 2008 12:20 PM To: OpenSceneGraph Users Subject: Re: [osg-users] RTT and stereo (corrected) Hi Roman, On Thu, Dec 11, 2008 at 6:57 AM, Roman Grigoriev <[EMAIL PROTECTED]> wrote: > So for now I solve problem by doing all postprocess operations for left and > right eye and have huge frame drop to 25 fps L Stereo rendering normally incurrs a performacne hit, as you are doubling the amount of work done. Is ther performance disproportional? > Could someone please give me recommendations what is better render to one > big texture both left and right eye (1600*600) or render to two small > textures (800*600)? Design wise it would be much easier to have one texture pure eye. Performance wise it probably won't make too much difference as the bottlenecks aren't likely to be related to setup of FBO's/teuxtures. You "might" see a performance improvement with using a single texture, but I doubt it would be worthwhile. I'd recommend looking at your wider performance bottlenecks. What is your cull/draw costs? Due you have two graphics cards and a multi-core GPU available? Robert. _______________________________________________ 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
