Switching between two performer apps

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Kent Miller (blastarr++at++ix.netcom.com)
Sun, 28 May 1995 16:04:54 -0700

We are hoping to run two Performer apps simultaneously, each with its
processes locked to separate CPUs (we have 12), and switch control of
the pipes (3) between them (in a sense, to be able to "pop" one forward
and "push" the other back). Each app represents one of two "modes" that
a task can be performed in, and only one needs to be active at a time,
but we want the user to be able to switch freely between them.

One of the apps is a straightforward 3D environment using only
Performer; the other is a 2D ImageVision app, which uses Performer for
stereo frame sync (for use with an HMD) and pfDataPools for interaction
with the head tracker process. Right now we don't run them at the same
time.

What's the best method for switching between them?

Should we try to integrate the two into a single app?

Is there a way to tell one to give up the pipes and flag the other to
take over?

Thanks in advance for any advice.

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