On Mar 1, 2009, at 2:35 PM, Jon Steinmetz <[email protected]> wrote:
For whatever reason that is not clear to me these numbers were not changing when in a QCCompositionLayer.
Thanks.


Are you modifying the time on the layers in any way? Using the patch in non perlin mode is the legacy mode, only exists for backwards compatibility. It doesn't do well in iterators, or any situation where you have externalized the timebase.

For those who write your own plugins, here's what to watch out for: There is an ivar which tracks the state from frame to frame in the old random algorithm. When the time passed a threshold, the ivar is updated. But if the patch tim is negative or modified multiple times per frame inside an iterator, that can get really messed up. Now there is a lookup function and Random using perlin is little more than the Noise patch where x is tied to time.
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