[PD] gemwin frame rate limit?

[chris clepper]

GEM is set to VBL sync based on your monitor's refresh rate.  I vaguely
recall putting some sort of message about turning this on and off in the
gemwin.  With it off you will often see horrible tearing artifacts on the
display, which is why it defaults to 'on' on OSX (and apparently Linux
too).

On Wed, May 30, 2012 at 3:15 PM, William Brent <william.brent at gmail.com>wrote:

> Hi list,
>
> I'm trying to get the fastest possible frame rate from GEM, and seem
> to be hitting a limit of 60fps.  Is this a known limit?  I searched
> the documentation and pd-list archives, but maybe I'm missing
> something.  The final application I'm working on is video tracking,
> but here's a test patch with nothing more than a gemwin and a counter
> incremented by the gemhead.  With a frame rate of 90 for the gemwin,
> it takes exactly 3 seconds to get the counter up to 180, when it
> should only take 2 seconds.  At a frame rate of 60, it takes the
> expected 2 seconds to get the counter to 120.
>
> I'm running this with Pd-0.43-2 and GEM 0.93.3 on Ubuntu 12.04 using
> the -noaudio flag.  I get the same results on Mac OS 10.6.8.
>
>
> --
> William Brent
> www.williambrent.com
>
> “Great minds flock together”
> Conflations: conversational idiom for the 21st century
>
> www.conflations.com
>
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