Hi Tim, On Wed, Nov 10, 2010 at 6:05 PM, Tim Moore <[email protected]> wrote: > Your commit seems to work here on a newish NVidia system. The diagnostics > are at OSG_NOTICE, which is the highest, correct? I get a spew of frame > timestamp messages.
This is good, means the mechanism is working. Once everything is debugged we can removed the message. > It looks like GL_QUERY_COUNTER_BITS_ARB is returning 0 on your system. I > don't know what that means if GL_ARB_timer_query is supported. I'll google > around a bit. Perhaps the hardware isn't capable? I have an AT 4670 in this system. > An interesting problem in the stats graph shows up with the new timer. > Actually, I've seen it before, but I assumed that the timer query would take > care of it. Sometimes the GPU bar doesn't show up at all. I think that the > GPU time is happening more than one frame after the corresponding draw > traversal, which is reputed to happen in certain NVidia configurations. I'll > dig around a bit and try to confirm that. With GL 3.3 driver I don't see any GPU stats anymore. My NVidia latop has 3.2 drivers and reports support for GL_EXT_timer_query only. I don't get an errors or reports, and the GPU stats work as before. I presume because the new stats code isn't being used. Robert. Robert. _______________________________________________ osg-submissions mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-submissions-openscenegraph.org
