Hi Bob, On 10/7/09 9:05 PM, Bob Youmans wrote:
Hi, does anyone know if it’s possible to run faster than the 60Hz vsync or 100Hz osg limit, if computational performance is the ultimate goal even at the expense of “tearing.” Can I get 600 fps by turning off vsync (or something else, it didn’t work on my box)? Is the graphics card driver/model involved? How can you tell which ones will work without actually buying it?
If you turn off vsync then OSG will render as fast as possible, without any artificial limitation. There's no 100 Hz OSG limit that I'm aware of except maybe in the DB pager.
Sure you can get 600 fps if you're willing to accept tearing (or render offscreen), even my GeForce 8600M GT laptop gives me over 1000 fps for moderately complex models. And yes, the graphics card is obviously involved (the faster the better) and so is the driver.
If you're not seeing more than vsync fps then the reason is most likely due to setup, e.g. a driver settings forcing vsync on or __GL_SYNC_TO_VBLANK being set on Linux.
Cheers, /ulrich _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
