On Feb 28, 2008, at 11:45 AM, Peter Watling wrote:
I've found that playing a movie in its own QTMovieLayer is MUCH
faster than on a QCCompositionLayer.
And it also seems that performance is hit badly when you want to
have any more than one QCCompositionLayer in the same container.
Even in separate windows, I have bad slowdowns whenever I want more
than one QCCompositionLayer on screen anywhere. This is on the top
model iMac with the 256MB video card. It doesn't seem to mind loads
of QTMovieLayers, its just these Compositions, which is sad, as I
really wanted to have a stack of compositions in my app. Am I doing
something wrong?
There are no bugs that I've been able to find for performance issues
with the QCCompositionLayer. If you could file one at <http://bugreporter.apple.com
> and send the bug#, then we'll take a look to see if there is
anything that can be done.
--
David Duncan
Apple DTS Animation and Printing
[EMAIL PROTECTED]
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