On Sat, 2011-12-24 at 10:12 +0000, James Turner wrote:
> On 24 Dec 2011, at 08:32, Mathias Fröhlich wrote:
>
> > Thie required extensions are in the effect files. Whatever changes are done
> > with
> > the shaders, the effect files *must* contain the minimum condition under
> > which
> > gl version/extensions this shader is valid.
> > This is complex, but the only way to make that run portable.
>
> According to this, there should be no extension required:
>
> http://lists.apple.com/archives/mac-opengl/2007/Oct/msg00108.html
>
> And 'glxinfo' reports:
>
> OpenGL vendor string: ATI Technologies Inc.
> OpenGL renderer string: ATI Radeon HD 5770 OpenGL Engine
> OpenGL version string: 2.1 ATI-7.12.9
> OpenGL shading language version string: 1.20
>
> (and no 3D texturing extension token)
>
> Do we have a minimum OpenGL version requirement? 1.3 vs 1.4 vs 2.0?
glxinfo:
OpenGL vendor string: NVIDIA Corporation
OpenGL renderer string: GeForce 9600 GT/PCI/SSE2/3DNOW!
OpenGL version string: 2.1.2 NVIDIA 173.14.22
glxinfo | grep 3D
OpenGL renderer string: GeForce 9600 GT/PCI/SSE2/3DNOW!
GL_EXT_stencil_two_side, GL_EXT_stencil_wrap, GL_EXT_texture3D,
But then again:
http://developer.amd.com/archive/radeonarchives/RadeonSampleCode/EXT_texture3D-Extension/Pages/default.aspx
> The Radeon® has full support for EXT_texture3D, which is a required
> feature for OpenGL® 1.2 compliance.
Odd.
Erik
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