MultiChannel in singlePipe

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Masahiko Yamanaka (wry++at++dimwit.dst.nk-exa.co.jp)
Tue, 15 Feb 94 13:35:06 +0900

I am using 2 pfChannels.
One is main channel, another is sub channel( toggles show/hide, a part of the window ).

As I use following,

pfChanDrawFunc( mainChannel, mainDrawChanCB );
pfChanDrawFunc( subChannel, subDrawChanCB );

then rendering is occured as following( slow ).

1. draw main
2. swapbuffers
3. draw sub
4. swapbuffers

I would like to do this as following( fast ).

1. draw main
2. draw sub
3. swapbuffers

If I don't use pfChanDrawFunc( mainChannel, mainDrawChanCB ), I can get fast one.

But, many processes must be done in mainChannel, because subChannel may disappear.

How can I do this well?

I'm using IRIX4.0.5/CrimsonVGX with Performer1.0.

Thanks.

--
Masahiko Yamanaka

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