Hi Alex,

same issue with my hardware: iMac, NVIDIA GeForce GT 130

I also exchanged the image input into the feedback patch, as well as the image 
filter inside, but still the same problem.

I am not sure, if you are searching for a workaround or collecting data for 
filing a bug? You can certainly do the same feedback thing with an image 
accumulator patch.

best,

Achim Breidenbach
Boinx Software

On 09.02.2011, at 11:25, Alex Drinkwater wrote:

> I've noticed what seems to be a massive memory leak when using the Feedback 
> patch with images. The attached file illustrates a simple case. I find that 
> the framerate drops rapidly when running the composition. Can anyone else 
> confirm that the same thing happens on their hardware?
> 
> I've also tried using a Queue patch to implement image/video feedback in a 
> similar way, with the same disappointing result.
> 
> I seem to remember also using an undocumented JavaScript feature in a Core 
> Image Kernel to implement feedback in a previous version of Quartz Composer, 
> and hitting the same issue. The two issues may be completely unrelated, 
> however.
> 
> a|x
> 
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