hi David I set the environment variable to displaylists but still got a crash. I believe this is due to the fact that I was zoomed all the way out on the paged database which was still using vbo.
Gotta love integrated graphics cards huh... Jason On 8/14/08, David Guthrie <[EMAIL PROTECTED]> wrote: > Have you tried setting it to using display lists instead of vertex arrays? > If > they don't suit, then you may be able to figure out what card you are using, > or make some sort of configuration check in an installer then set the > environment variable? > > On Thursday 14 August 2008 10:42:42 am Jason Beverage wrote: >> Hi all, >> >> I recently updated our product to use the --terrain flag in >> VirtualPlanetBuilder to increase the speed of our database creation and >> things are working wonderfully except for on the machines that have the >> Intel 945GM chipset which are crashing. >> >> I've narrowed the problem down to the fact that the 945GM doesn't seem to >> like using VBO, which is enabled in GeometryTechnique.cpp. If I revert >> back to not using the --terrain option, which does not use VBO, things >> work >> just fine. Also, if I set the environment variable >> OSG_DATABASE_PAGER_DRAWABLE=VertexArrays, things also work just fine. >> >> I would like to not have to revert back to not using the --terrain option >> since the performance increases on machines that support VBO are so >> substantial but I also don't want specific users to have to modify the >> environment variable. >> >> In theory, we can know whether or not VBO is supported by the graphics >> card >> by using the State::isVertexBufferObjectSupported(), but the 945GM must be >> incorrectly reporting that it does support VBO. >> >> Does anyone have any suggestions on what I should do in this situation? >> >> Thanks! >> >> Jason > > > -- > David Guthrie > [EMAIL PROTECTED] > Alion Science and Technology > BMH Operation - A CMMI Maturity Level 3 Organization > 5365 Robin Hood Road, Suite 100 > Norfolk, VA 23513-2416 > (757) 857-5670, ext 269, Fax (757) 857-6781 > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
