[Mesa-users] Looking for the limiting factor

[Benjamin Bellec]

Hi,

I'm pretty sure you missed to add the "--enable-texture-float=yes" flag on
your configure.

This flag is required to support OpenGL 3.0 and is not enabled by default
due to patent concerns.
More information here:
http://www.phoronix.com/scan.php?page=news_item&px=OTUxMg#

Regards.

--
*Benjamin*

2017-05-23 0:35 GMT+02:00 Bryan Feir <jenora at sympatico.ca>:

> So, possible newbie issue here.  I'm currently unable to get mesa past
> OpenGL 2.1 compatibility.  The 'Extended renderer info' from glxinfo gives:
> Extended renderer info (GLX_MESA_query_renderer):
>     Vendor: X.Org (0x1002)
>     Device: AMD POLARIS11 (DRM 3.3.0 / 4.8.17-gentoo, LLVM 3.9.1) (0x67ef)
>     Version: 13.0.5
>     Accelerated: yes
>     Video memory: 4044MB
>     Unified memory: no
>     Preferred profile: compat (0x2)
>     Max core profile version: 0.0
>     Max compat profile version: 2.1
>     Max GLES1 profile version: 1.1
>     Max GLES[23] profile version: 2.0
>
> Now according to https://www.mesa3d.org/relnotes/13.0.5.html that
> version of mesa supports up to OpenGL 4.4 depending on the driver, and
> according to https://www.x.org/wiki/RadeonFeature/ the POLARIS11 is a
> Volcanic Islands chipset and the amdgpu driver I am using should support
> up to OpenGL 4.5 as long as LLVM 3.9 is installed (which it is).
>
> Obviously something is causing mesa to decide it can't support the
> higher compatibility, but right now I don't even know where to start
> looking for where it's making that decision, or which log files contain
> the proper information.  What do people need to know in order to debug
> this?
>
> This is a gentoo machine, so packages are locally built.
>
> (I don't currently need OpenGL 4.4 compatibility, but 3.2 would be
> useful for a Unity3D-based application.)
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