[osg-users] SMP and osgprerendercubemap on Linux

Hello All, I posted about this a couple of weeks ago, but didn't have much info. I'm getting really poor framerates ( 10 )from our software which is based on osgdistortion on a Core 2 Quad machine with a Quadro 3500 running Ubuntu 7.10. My P4 + Quadro 3450, and my Core 2 Duo + Quadro 1600M

Re: [osg-users] SMP and osgprerendercubemap on Linux

Hi Pete, Try using pbuffer rather than FBO, NVidia's Linux OpenGL drivers handling of FBO'd cubemaps broke performance wise about six months ago. Switch back to Pbuffer fixes the performance issue even though it introduces a copy texture operation. Unfortunately I haven't yet exposed an option

Re: [osg-users] SMP and osgprerendercubemap on Linux

Cheers Robert, Sweet! I ran osgprerendercubemap --pbuffer - just as a preliminary test - and we're back up to 60 fps - cheers Still doesn't explain why I only saw it with an SMP kernel - is it a threading issue...? Pete Robert Osfield wrote: Hi Pete, Try using pbuffer rather than