Hi DRC,
You are correct. Running vglrun with '-sp -fps 60' limits the 3D
rendering rate as you described. The 3D rendering rate follows the -fps
value. I didn't realize that -sp would lock the two rates together.
I have another patch coming soon that implements GLX_SGI_swap_control /
glXSwapIntervalSGI and perfects the delay within glXSwapBuffers.
---
Thanks,
Dyweni
On 2013-06-04 14:13, DRC wrote:
> Dyweni,
>
> I await your response on this before I proceed any further. I need to
> resolve the matter of whether you simply forgot to disable frame
> spoiling (which is what I suspect, since your previous messages made
> no
> mention of using the -sp switch to vglrun or setting VGL_SPOIL to 0)
> or
> whether, for whatever reason, disabling it did not lock the 3D
> rendering
> rate to VGL_FPS (and if that's the case, I'm not sure I understand how
> that could happen.)
>
>
>> You have to disable frame spoiling in order for the -fps option to
>> limit
>> the actual 3D rendering rate:
>>
>> Did you pass 'sp' to vglrun?
>>
>> vglrun -sp -fps {f} {application}
>>
>> I am more keen on the idea of implementing GLX_EXT_swap_control as
>> opposed to implementing a separate frame rate governor, and I will
>> look
>> at your patch in detail. However, I also want to understand whether
>> doing the above (using the existing frame rate governor without frame
>> spoiling) accomplishes a similar effect and, if not, why not.
>
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