I've been having a problem using the Iterator in a composition driven from an external timebase. The Iterator is used for a trail effect on a moving sprite, and the external timebase is fed into the composition using OSC.
Everything works fine when running the composition in real time, i.e. the timebase being fed to it is very close in rate to the internal timebase of Quartz Composer, but when I run the timebase at a very slow rate (e.g. for rendering out individual frames in order to produce a quicktime video) the result is quite different. It appears that the Iterator continues to run on its internal timebase, despite being set to "External." Because the iterator is being fed images via a Queue, I thought the problem might be there. But the problem persists whether the Queue is set to "continuous" or not. Is this a known side-effect of working with Iterators, or am I doing something wrong? thanks! ------------------------------------------------- Bruno Degazio Sheridan College, Oakville, ON dega...@sheridanc.on.ca website: http://www-acad.sheridanc.on.ca/~degazio
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