Remote OpenGL -- getting it to work?

[L. A. Walsh]

Glynn Clements wrote:
> L. A. Walsh wrote:
>
>   
>> I have sometimes gotten some GLX programs to work for a short while,
>> but more often than not, I don't get them to work at all.
>>     
>
> The most likely reason for this is that the program needs a later
> version of OpenGL than Cygwin's X server provides.
>   
----
    Hmmm....what does this mean, then?
OpenGL vendor string: NVIDIA Corporation
OpenGL renderer string: GeForce GTX 590/PCIe/SSE2
OpenGL version string: 1.4 (4.5.0 NVIDIA 355.98)
---
    That's the OpenGL version that comes with graphics card
driver on the X-server -- i.e. Nvidia provides upgraded versions
of openGL for my OS.  I thought the X-server provided a pass-through
for the openGL protocol?


>   
>> I'm not sure where to look for how to configure it to be allowed,
>>     
>
> No configuration is required.
>
>   
>> but on the client end, it doesn't seem to ever want to load swrast.
>>     
>
> swrast isn't relevant for indirect rendering. The fact that libGL even
> attempts to load it when $DISPLAY refers to a remote server is less
> than desirable, but ultimately doesn't matter.
>   
What should it load instead?   Isn't openGL handled by the server's
graphics hardware?  The swrast load is happening on the client, which
doesn't have graphics HW -- so I thought it would or should send it's
graphics commands to the remote server to be executed?