hi Robert, I get the same version string: OpenGL version string: 2.1.2 NVIDIA 177.82 Yet I most probably have a less recent Graphics Card than you : I have a NVidia Quadro FX 550 Do you think this is the reason? Why doesn't it occur every time?
On Wed, Feb 25, 2009 at 9:20 PM, Robert Osfield <robert.osfi...@gmail.com>wrote: > Hi Loic, > > I've just done a testing of using --hdr in osgprerender (--fbo is the > default where supported) and it works fine. I'm using Kubuntu 8.10 + > Geforce 8800GTS. > > glxinfo outputs lots of stuff including the version info: > > OpenGL version string: 2.1.2 NVIDIA 177.82 > > Check which version you are using, as it does sounds like you are > encountering a bug. I'd also be worth checking what glxinfo reports > as being supported - make sure it support HDR + FBO's. > WGL_render_texture isn't required for FBO, and do export > OSG_NOTIFY_LEVEL=DEBUG on my system doesn't produce any checks. > > The fact that your system is reporting this (benign) warning suggest > to me that RenderStage::runCameraSetUp() has failed to set up an FBO > render target, and is fallback back to using pbuffer. I don't think > pbuffer can support HDR. > > Robert. > - Show quoted text - > > > On Wed, Feb 25, 2009 at 6:39 PM, Simon Loic <simon1l...@gmail.com> wrote: > > hi all, > > I have some probelms when using FBO. > > I have an Nvidia Quadro Fx 550, on an ubuntu 8.10 distribution > > > > when doing > > osgprerender --hdr --fbo cow.osg > > > > Sometimes I get the following output: > > > >>> RenderStage::runCameraSetUp(), FBO setup failed, FBO status= 0x8cdd > > > > With OSG_NOTIFY_LEVEL=DEBUG i get: > > > >>> WGL_ARB_render_texture is not supported. > > > > I find it strange that WGL_render_texture has to be supported as I > thought > > it was a Windows only extension. > > Does this means that FBO can not be used on linux? > > > > I don't know why I get this message sometimes but not every time. > > > > BTW In my osg application I am doing FBO based screenshot, and I have the > > same behaviour: > > sometimes it works perfectly and dometimes I get this message and I get a > > black image. > > > > Thanks guys > > > > > > -- > > Loïc Simon > > > > _______________________________________________ > > 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 > -- Loïc Simon
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