cruft in pfPipeWindows not covered by pfChannels

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From: John Kelso (kelso++at++vt.edu)
Date: 10/11/2000 10:45:32

Hi,

I suspect this is an easy question, but it doesn't seem to be be that way
for me today.

I have a program that opens a pfPipeWindow. Several pfChannels write to
it, but they don't cover all of the window's area.

When the window is moved, the areas of the window not being draw by the
channels get cruft in them- usually flashing (looks like z-buffer
fighting) pieces of what window is underneath it, or pieces of what used
to be on the screen before the window was moved.

The areas of the window being drawn by the channels work fine- it's just
the area of the window that isn't being drawn.

I've thought of creating a new channel that covers the whole window and
drawing it first, but that seems a bit extreme.

Any ideas of how to keep the undrawn areas of the window clean??

Incidentally, I only see this problem on our Onyx with a RE2 pipe. Our
Octanes work fine.

Thanks,

-John

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John Kelso www.cave.vt.edu
Research Associate, Virginia Tech CAVE email: kelso++at++vt.edu
3030B Torgersen Hall, MS 0468 phone: 540/231-2054
Blacksburg, VA 24061 fax: 540/231-2056

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