Hi there :) I just wanted to report a bug (if it is) to you. It happens on my up to date Ubuntu Lucid 64bit which is running on my laptop (which is a lenovo ibm thinkpad T500 with intel graphics module i915) When using the openscenegraph sample application shipped with the distributions package, i encounter the following error: osgshaderterrain Creating terrain...done. Mesa 7.7.1-DEVEL implementation error: Unsupported opcode 79 (TEX) in vertex shader Please report at bugzilla.freedesktop.org Warning: detected OpenGL error 'invalid value' after RenderBin::draw(,) do_wait: drmWaitVBlank returned -1, IRQs don't seem to be working correctly. Try adjusting the vblank_mode configuration parameter. The do_wait line appears with every sample. The programm does not crash, it just shows the "terrain" which would normally have shaders applied, but which is now black and with flickering black bars in z direction (so called "up") I don't know if that will help you any further, but if you need more information, here i am ;)
Mesa package version is 7.7-4ubuntu1
This message is coming from the i965 dri driver, which does not implement vertex texturing. Unless I'm mistaken though the driver always said it didn't support vertex texturing (what does glxinfo -l say about number of vertex texture units), hence this would actually be an application bug if it still tries to use vertex texturing.
Created attachment 34766 [details] Output of glxinfo -l Here the output of glxinfo -l on my machine. I don't exactly know which number you are looking after...? If this is a application (openscenegraph) bug, than i will probably post the bug to their bugreporting system.
> GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS_ARB = 0 We've got the lack of this feature tracked elsewhere, so I'm closing this bug.
*** Bug 28472 has been marked as a duplicate of this bug. ***
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