Re: getbutton & getvaluator

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Allan Schaffer (aschaffe++at++shark.paris.sgi.com)
Fri, 17 Mar 1995 19:14:27 +0100

On Mar 17, 10:22am, `Bwana' Bob Buckley wrote:
>
> Why does a getbutton and/or a getvaluator work when called from the
> app process while multiprocessing app separate from draw?

I was absolutely amazed when I saw this for the first time, just
yesterday. (On an Onyx RE running 5.3)

My inital guess was that the noport() window opened for the vertical
sync stuff is the one catching these commands. This conflicts with
my next discovery, though, which was that I could draw as much as I
wanted into the overlay planes. Wierd. I plan to delve into this
when I return from Paris.

If you watch for graphics context switches (via osview or the
performer "CPU Stats" display) you'll see a bunch. This means
that multiple GL "windows" are being rendered to simultaneously.

Allan

-- 
Allan Schaffer
Silicon Graphics
aschaffe++at++sgi.com
http://reality.sgi.com/employees/aschaffe

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