Part of the screen does not get redrawn ....
dcibiceli++at++etcusa.com
Thu, 18 Sep 97 9:36:21 EDT
Dear Performers,
I am displaying a HUD (Heads Up Display). I have tied key
combinations to test the pitch and roll movements. When I pitch up,
some of the ladder ( roll angles drawn on the HUD ) gets printed on top of
each other. It is as if a specific part of the screen ( horizontal band) does
not get redrawn for specific pitch angles. Every thing drawn in that
horizontal band of the screen does not get refreshed when a new frame is
drawn. Thus numbers are printed on top of each other in that horizontal band.
Any idea why that may happen... I am using the perfly source code with
performer 2.1 .
Dogan Cibiceli
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on Mon Aug 10 1998 - 17:55:57 PDT