Hi Robert, Robert Osfield wrote: > Hi J.P, > > On Fri, Apr 18, 2008 at 10:53 AM, J.P. Delport <[EMAIL PROTECTED]> wrote: >> version 8084 (that works) already has MRT included, that's why I had it >> on another machine. >> >> It seems like it was the moving of the MRT to FBO that might be the problem. > > Thanks for the clarification, gives us a little more to go on. > Another possible clue: > > osgprerender cow.osg --image --fbo > > Produces the OpenGL error, while: > > osgprerender cow.osg --image --window > osgprerender cow.osg --image --fb > osgprerender cow.osg --image --pbuffer > > Don't produce and error, so its certainly the FBO code itself that is at > fault.
Yes, I think I know what is wrong. Remember how you modified the enum Camera::BufferComponent so that COLOR_BUFFER and COLOR_BUFFER0 were not the same? When glDrawBuffers was in RenderStage, it knew to only enable MRT when COLOR_BUFFER0 or later was attached. However, the fbo->setAttachment call is the same for COLOR_BUFFER and COLOR_BUFFER0. So now FBO internally incorrectly calls glDrawBuffers when COLOR_BUFFER (vs COLOR_BUFFER0) is attached and this causes the error. I'm not sure how to fix this without changing fbo->setAttachment. Still looking... jp > > Robert. > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org -- This message is subject to the CSIR's copyright terms and conditions, e-mail legal notice, and implemented Open Document Format (ODF) standard. The full disclaimer details can be found at http://www.csir.co.za/disclaimer.html. This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. MailScanner thanks Transtec Computers for their support. _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
