[Bug 28529] Limbo game doesn't detect Shader Model 3.0, while card supports it

http://bugs.winehq.org/show_bug.cgi?id=28529

--- Comment #9 from Henri Verbeet  2013-05-29 02:13:13 CDT ---
(In reply to comment #8)
> As said in Comment #6 GeForce 6/7 series cards do not support
> ARB_shader_texture_lod, but they are SM3.0-compatible.

The hardware is, but the nvidia GL drivers don't expose the required
functionality. You need either ARB_shader_texture_lod, EXT_gpu_shader4 or GLSL
1.30 to implement the SM3 texldd and texldl instructions. The hardware clearly
can't support EXT_gpu_shader4 and GLSL 1.30, but it could do
ARB_shader_texture_lod if nvidia implemented it in their drivers.