jmdavis@cbnewsd.ATT.COM (j.michael.davis) (08/11/89)
A friend and I have noticed some strangeness (again) regarding The
Director and DPaint III. The only animations we have tried to animate
using the director are ones made by DPIII, so we don't know if the
problem lies with DPIII or the Director. I have the June 88 version of
The Director, and DPIII version 3.01.
The problem is that there is a visible "flicker" when going from one
frame of an animation to the next. THIS IS NOT A LACK OF DOUBLE BUFFERING
PROBLEM, since the problem doesn't occur during the whole animation.
Furthermore, I am using the method outlined in the Director manual. (I am
a bit shy on information, I haven't messed with it for a week, and my
friend just told me today about his problem.) I think it is something
like:
DISPLAY frameA
ANIM frameB, animdata, abs,rel,done
DISPLAY frameB
ANIM frameA, animdata, abs,rel,done
(loop)
I don't notice my problem when the pause between frames is long, but this
is an unacceptable solution. Furthermore, in my animation, the animated
data differs in only 1 bitplane from the background, and it still happens.
Even if this worked, it too would be an unacceptable general solution.
I am wondering if anyone else has this problem? Is it due to DPIII's
compression scheme? Is there a patch to the director? (It really looks
like the director displays the image 1/2 way through the anim command.)
I suppose something to try would be to not display frameA, but rather
copy it to another buffer and then display it, but I doubt that would
work too. And besided, this would mean a revision to the structure of my
director scripts (I don't have a fat Agnes so I don't have the memory to
burn).
Thanks for the help.
--
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I am just about fed up | Mike Davis
and I will only take it | ..!att!ihlpm!jmdavis
a few more times. |