[osg-users] osglight demo problems with Intel graphics on Windows

[Ryan Thoryk]

Vendor: Intel
Renderer: Intel(R) HD Graphics 3000
GL Version: 3.1.0 - Build 9.17.10.4459
Warning: detected OpenGL error 'invalid enumerant' at After Renderer::compile

which implies that the app is using shaders. I thought that the OSG lights used the FFP OpenGL lights and not shaders.

I'm attaching a screenshot of the project.

Ryan

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Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=74296#74296




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[Robert Osfield]

Hi Ryan,

The osglight example just just the fixed function pipeline and doesn't
provide any shaders.

What you describe sounds like an Intel driver bug. The best thing you
can do is check for latest Intel drivers.

Robert.

Post by Ryan Thoryk

Vendor: Intel
Renderer: Intel(R) HD Graphics 3000
GL Version: 3.1.0 - Build 9.17.10.4459
Warning: detected OpenGL error 'invalid enumerant' at After Renderer::compile

which implies that the app is using shaders. I thought that the OSG lights used the FFP OpenGL lights and not shaders.
I'm attaching a screenshot of the project.
Ryan
------------------
http://forum.openscenegraph.org/viewtopic.php?p=74296#74296
http://forum.openscenegraph.org//files/lightmod_173.png
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[Ryan Thoryk]

Post by Robert Osfield
What you describe sounds like an Intel driver bug. The best thing you
can do is check for latest Intel drivers.

I checked over some things and found that the FFP was removed in GL 3.1, and that the Intel driver is reporting as that version. I tested on an older laptop with Intel graphics, and it works, reporting as version 2.1. Linux works and is using GL 3.0. I'm wondering if 3.1 is what the problem is.

Ryan

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Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=74335#74335