this QT/Core Animation tutorial may be useful:
http://www.cimgf.com/2008/03/05/core-animation-tutorial-qtmovielayer-and-image-animation/
best,
dan
On Apr 2, 2008, at 4:51 PM, Troy Koelling wrote:
On Apr 2, 2008, at 12:26 PM, Bruno Emond wrote:
I have tried to include the source video as a patch in the
interactive quartz composition, by clicking on the composition for
example I can add circles, squares, cubes etc to the visual
content. It more or less works after I have built a movie
controller to move back and forth in the composition time line but
when I stop the composition, everything becomes black. I find this
cumbersome and would rather use the QTKit classes to deal with the
video and capture the user interactions at the quartz composition
level. So what I thought of doing was to add a QTView object and a
Quartz Composer view to the interface, making the composition
transparent and putting it on top of the QTView. The problem in
that case is that the QTView always masks the Quartz composition.
You could use CoreAnimation to layer the QuartzComposer content with
the QTKit content. This will fix the "masking" issues.
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