Indirect OpenGL -- partially working?

Thomas Lübking thomas.luebking at gmx.de
Thu Jun 16 20:19:36 UTC 2016


On Wed, Jun 15, 2016 at 05:05:28PM -0700, L. A. Walsh wrote:

>Thomas Lübking wrote:
>>Indirect GL is confined to GL 1.4 (ie. fixed function path, notably no
>>glsl)
>>The driver and GPU support 4.5, but only on direct contexts.
>>
>>You should check whether indirect GL works generally (there're somet
>>pitfalls), ie. whether glxgears works.
>>If so, you best contact the authors of the failing GL clients and ask
>>whether they provide a fixed function path (and how to select it)


>Glx gears draws the gears but they don't move.
Despite the glxgears specific issues, the answer is "yes" ;-)

>Why is it using a an SGI glx on the server (where cygwinX is running)?
Cygwin defaults to software rendering (but that's only relevant for
local clients)

>glx lib or a default -- why would it be limited to 1.4?
The problem is not that the software rasterizer is limited to 1.4 but
that indirect GLX is. No matter what the local cygwin server (you may
enable experimental WGL) or the remote nvidia server can do. A remote GL
client can only make use of 1.4.

Cheers,
Thomas


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