Hi Bill, I have never tried to allocate such a large FBO or associate osg::Image so can't really say too much. osg::Image itself doesn't really care how big dimensions you choose, it should in theory be able to allocate as big as you need. The OpenGL side is governed by how much the OpenGL driver & hardware can support, up till the 8 series NVidia were limited to 4096x4096 but in theory the new 8+ series should be able to cope with 8192x8192 for textures, but I'm not sure about FBO's you'll need to look this up.
Robert. On Fri, Feb 22, 2008 at 9:41 PM, Poirier, Guillaume <[EMAIL PROTECTED]> wrote: > > > > > Hello OSGers ! > > I am trying to render to a large float image of dimension 4368 X 2912. > > I allocate an osg::Image of that size, GL_RGB, GL_FLOAT, and GL_RGB32F_ARB. > > I attach that image to my camera COLOR_BUFFER. > > Interestingly when I read back the image pixels > 4096 in x wrap around. > Everything < 4096 is fine. If I don't render to a float image but rather > an unsigned byte image I can render correctly my image > 4096 in x... > > I work under linux with a GeForce 8800 GTX, openGL 2.1.1, and driver > 100.14.11. > > Does anyone ever encountered such issue ? > > Many thanks in advance, > > > - bill > _______________________________________________ > 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
