Robert Osfield wrote: > > Hi Bob, > > This sounds like an OpenGL driver bug, especially as lower capability > hardware is working just fine. Try updating the driver version, or > perhaps even moving it back. Also try out other OS's and machines to > see if they behavior crops up again. >
It looks like the latest Nvidia Quadro FX 5500 driver (9Nov07) fixed the problem. Thanks... Bob. > > On Nov 26, 2007 10:41 PM, Robert Balfour <[EMAIL PROTECTED]> wrote: > > In a large cityscape of loaded .osg/ive high-rise textured building > > models (LOD, not PagedLOD), initially everything looks great flying in > > and out around all the buildings, then sometimes after a while some of > > the building texture faces turn white. I know that invalid/incomplete > > GL textures will be rendered white, but initially all the textures > > looked perfect. > > > > If the textures got paged out by the graphics pipe, I would expect to > > see a slight rendering delay when they get paged back in, but not turn > > white. But even more confusing is that on a single CPU WinXP laptop > > (2yrs old) with Nvidia(256MB videomem) it runs fine - no white textures; > > but on a brand new WinXP quad-cpu (not threaded - so we're only using 1 > > of them) with the latest Nvidia(768MB videomem) the white textures > > problem seems to be getting worse (more frequent) over time! > > > > Could the inconsistancy across various platforms be pointing to a GL > > driver issue (i.e. different versions), or is there something is OSG > > that I can be looking at to fix this, or at least isolate what the > > problem could be? > > > > Thank you. -- Robert E. Balfour, Ph.D. Exec. V.P. & CTO, BALFOUR Technologies LLC 960 South Broadway, Suite 108, Hicksville NY 11801 Phone: (516)513-0030 Fax: (516)513-0027 email: [EMAIL PROTECTED] _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
