I think compiling the shader is deferred until it's actually needed. The fact that it doesn't list WHAT extension it needs suggests to me that the driver is just broken and there may not be anything you can do.
You could try a validator and see if it flags anything wrong with your GLSL code: https://github.com/KhronosGroup/glslang On Fri, Dec 14, 2018 at 10:21 PM Andrew Cunningham <andr...@mac.com> wrote: > Sadly although the driver is old, apparently it can't be updated to a > newer version on this DELL laptop. > > Also, I am struggling a bit to detect/recover from the failure of > "glLinkProgram". > > It appears this is delayed until the "first render" using the shader. > > ------------------ > Read this topic online here: > http://forum.openscenegraph.org/viewtopic.php?p=75310#75310 > > > > > > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > -- Chris 'Xenon' Hanson, omo sanza lettere. xe...@alphapixel.com http://www.alphapixel.com/ Training • Consulting • Contracting 3D • Scene Graphs (Open Scene Graph/OSG) • OpenGL 2 • OpenGL 3 • OpenGL 4 • GLSL • OpenGL ES 1 • OpenGL ES 2 • OpenCL Legal/IP • Forensics • Imaging • UAVs • GIS • GPS • osgEarth • Terrain • Telemetry • Cryptography • LIDAR • Embedded • Mobile • iPhone/iPad/iOS • Android @alphapixel <https://twitter.com/alphapixel> facebook.com/alphapixel (775) 623-PIXL [7495]
_______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
