Hi Vins, I'm not so sure whether this is similar to an issue that I've had before with OSG 2.8 / nvidia cards, but at least you can try it. I had black (plain .ive) tiles showing up when the tile size was relatively large, the geometry was using a VBO (instead of display lists) and the nvidia control panel option Threaded optimization was enabled (turning it off fixed it for me). But this was a couple of driver versions ago..
Kind regards, Ruben -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of vin baines Sent: maandag 2 november 2009 10:07 To: [email protected] Subject: [osg-users] problem with quadro cards & database pager / terrapageterrains = black tiles Hi all, Has anyone experienced problems with quadro cards and large terrains? I'm loading a pretty big (~8gb) terrapage file (using Delta3D 2.3.0 which i think is built against osg 2.8.0), and on a standard nvidia card it works fine. Using exactly the same software, i've tested it on two different machines with quadro cards and I get a combination of missing tiles or tiles appearing black (but with a changing alpha value depending on camera orientation). At different LODs the black tiles will change to a proper tile, but if the tile was though to be missing it will never load in. It's not always the same tiles causing the problem, and it almost seems that if i quit the app and re-run it up then the problem is less. its really unpredictable. have tried turning all the graphics card options (e.g. anisotropic filters etc) off and on and neither makes much difference. The card has 512mb memory on it so wouldn't have thought that would cause a problem... Really confusing!! Any thoughts gratefully received!! Vins ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=19012#19012 _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.or g This e-mail and its contents are subject to the DISCLAIMER at http://www.tno.nl/disclaimer/email.html _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
