I found it. I had a frag shader on the LightPointNode that was setting the frag color. It is a very simple frag shader. I probably should know the answer but why would this be killing my frame time?
Thanks, Brad --- RSC BDC > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:osg-users- > [EMAIL PROTECTED] On Behalf Of Brian R Hill > Sent: Friday, September 15, 2006 6:21 AM > To: osg users > Subject: Re: [osg-users] LightPointNode performance > > > My ati mobility 9700 has horrible performance with when using smoothed > points (GL_POINT_SMOOTH). > > Brian > > > ------------------------------------------------------------------------ -- > ------------------------------------------------------------------------ -- > ---------------------------- > This is a PRIVATE message. If you are not the intended recipient, please > delete without copying and kindly advise us by e-mail of the mistake in > delivery. NOTE: Regardless of content, this e-mail shall not operate to > bind CSC to any order or other contract unless pursuant to explicit > written agreement or government initiative expressly permitting the use of > e-mail for such purpose. > ------------------------------------------------------------------------ -- > ------------------------------------------------------------------------ -- > ---------------------------- > > > > > "Robert Osfield" <[EMAIL PROTECTED]> > Sent by: [EMAIL PROTECTED] > > 09/15/2006 08:44 AM > Please respond to > osg users <[email protected]> > > To > "osg users" <[email protected]> > cc > Subject > Re: [osg-users] LightPointNode performance > > > > > > > Hi Colin, > > This shouts driver problem to me. On NVidia when I zoom in the GPU stats > (new to 1.2) as well as the cull and draw all stay very low, basically the > cost is pretty near constant. There is a slightly higher fill requirement > when you zoom in but its still very light on fill demand. > > Robert. > > On 9/15/06, Colin Rayment <[EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]> > wrote: > Robert > > I noticed when running the osglightpoint example I was getting a step > change in performance as I move towards the light points. It goes from > about 200Hz immediately down to about 3Hz. Looking at the stats display > its the draw that's taking the time. The issue goes away when I change to > rendering points instead of solids or wire frame. > > I'm running Windows XP with an ATI Radeon 9800 and OSG v1.1. > > I'm not sure if this an OSG or driver problem (it is an ATI card !). > > Colin > > > ________________________________ > > From: [EMAIL PROTECTED] <mailto:osg-users- > [EMAIL PROTECTED]> [mailto:[EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]> ] On Behalf Of Robert > Osfield > Sent: 15 September 2006 09:49 > To: osg users > Subject: Re: [osg-users] LightPointNode performance > > Hi Brad, > > What performance do you get when running the osglightpoint example? With > vsync off I get 560Hz with the osglightpoint example. > > As for getting the best peformance, you'll certainly get best peformance > by balancing the database, grouping the light point into local groups. > One LightPoint per LightPointNode certainly won't be efficient though, > perhaps 10-100 would be fine. You could experiment with the size of batch > that gets the best peformance. > > W.r.t storage of data, I wouldn't have though loading from an .osga would > make any difference. > > Robert. > > On 9/15/06, Brad Colbert < [EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]> > wrote: > Hi folks, > > I have a small pageable database (osga) and I'm populating it with light > points. I'm running into a performance issue, which may be totally > understandable, but I just want to make sure it makes sense. There are > 790 lights, maybe I shouldn't go any further ;)... anyway they increase > my frame time by 20ms when they are in view. > > I added all of the LightPoints to one LightPointNode. Should I create a > LightPoint per LPNode? I would think that dividing it may help the cull > but this is in the draw so I'm starting to think that this is some hard > limit. > > Well, any insight would be great. Thanks. > > -Brad > > --- > Renaissance Sciences Corporation > O/M: 480 290-3997 > F: 425 675-8044 > > _______________________________________________ > osg-users mailing list > [email protected] <mailto:[email protected]> > http://openscenegraph.net/mailman/listinfo/osg-users > <http://openscenegraph.net/mailman/listinfo/osg-users> > http://www.openscenegraph.org/ <http://www.openscenegraph.org/> > > > ________________________________________________________________________ > This email has been scanned for all viruses by the MessageLabs Email > Security System. > > ________________________________________________________________________ > The contents of this email (including any attachments) are confidential > and may be legally privileged. If you are not the intended recipient of > this email, any disclosure, copying, distribution or use of its contents > is strictly prohibited, and you should please notify the sender > immediately and then delete it (including any attachments) from your > system. > > _______________________________________________ > osg-users mailing list > [email protected] <mailto:[email protected]> > http://openscenegraph.net/mailman/listinfo/osg-users > <http://openscenegraph.net/mailman/listinfo/osg-users> > http://www.openscenegraph.org/ <http://www.openscenegraph.org/> > > _______________________________________________ > osg-users mailing list > [email protected] > http://openscenegraph.net/mailman/listinfo/osg-users > http://www.openscenegraph.org/ _______________________________________________ osg-users mailing list [email protected] http://openscenegraph.net/mailman/listinfo/osg-users http://www.openscenegraph.org/
