Hi Luigi, Good detective work, when I run osgviewer --SingleThreaded I get the black result, so it's certainly not a driver issues/platform issue. The only difference between 2.4. and 2.5. I can think that has an effect on initialization order is compile traversal, as I moved this to run during the draw of the first traversal.
I will investigate at my end as at least I can reproduce the problem now. Robert. On Mon, May 19, 2008 at 9:06 PM, Luigi Calori <[EMAIL PROTECTED]> wrote: > Hi Robert, I' ve dug a bit more and these are my findings: > > I' ve upgraded the nvidia driver and rebuilt with VS 8 and the problem > remains. > I' ve tested on other pc's and the results are: > > dell M70 and dell M60 --> BAD > dell M65, desktops (quadro fx500, quadro FX 1400) dell latitude d830 intel > 965 --> OK > > I thought it was related to different drivers, but now unsure: > I' ve made my machine (dell M70) work by setting > OSG_THREADING=DrawThreadPerContext or > OSG_THREADING=CullThreadPerCameraDrawThreadPerContext > and looking at the logs it seem that this is the key factor as the threading > model: > when left unspecified is selected by num processor. > Probably on m60 and m70 osg select singlethreading by default. > > Could you try to set singlethreading to see if you can reproduce the > problem? > > Are there performance penalty to force not to use singlethreading? > > Something that puzzles me is the block of lines > > Uniform Adding parent > Uniform Adding parent > Uniform Adding parent > Uniform Adding parent > Uniform Adding parent > Uniform Adding parent > Uniform Adding parent > > that appear before > Setting up osg::Camera::FRAME_BUFFER > > during > > OpenGL extension .... testing > > I thought OpenGL extension testing was run in the very init phase without > threading being enabled and without any draw or other code intermixed. > is this behaviour intended? > > I attach some logs hoping they are of some use to shine some light on this > strange behaviour > > > Thanks in advance, > > Luigi > > > > > > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
