Hi J-S, I rather sounds like a driver bug to me. One way to double check that the OSG is passing the right data to OpenGL would be capture the shaders output and pointers to a file and see if they remain valid.
Also running the application in a memory tracking tool would be a useful step. Finally trying a different driver or different shaders to see if that has any influence. Robert. On Thu, Feb 24, 2011 at 3:55 PM, Jean-Sébastien Guay <jean-sebastien.g...@cm-labs.com> wrote: > Hi all, > > When loading and applying shaders in my app, I sometimes get error messages > like this: > > glLinkProgram "DustParticleProgram" FAILED > Program "DustParticleProgram" infolog: > Fragment info > ------------- > (0) : error C0000: syntax error, unexpected $end at token "<EOF>" > (0) : error C0501: type name expected at token "<null atom>" > (0) : error C9000: internal corruption, aborting > > I've debugged into OSG when it compiles the shader and links the program, > and the fragment shader has proper source. But it looks as if the GLSL > compiler isn't getting this source correctly, it thinks it's empty or > something. I don't know what could cause this kind of problem. > > This only happens sometimes, but once it starts happening I can try and > reload the shader as many times as I want, it'll keep on giving that error > (and always on the same shader/program!). Restarting the application, the > error doesn't show up anymore (at least not at the start). But it's the same > shader! > > Has anyone seen something like this before? Perhaps it's a driver bug? I'm > already at the most recent version. If anyone has any ideas about this I'd > appreciate any info you have. > > Thanks in advance, > > J-S > -- > ______________________________________________________ > Jean-Sebastien Guay jean-sebastien.g...@cm-labs.com > http://www.cm-labs.com/ > http://whitestar02.webhop.org/ > _______________________________________________ > 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
