Cooking time for composite operations independant from res?

General TouchDesigner Discussion
1

Hi,

I have a performance/optimization question, it looks like most composite operators take 0.05 to 0.08 ms to cook, and that’s the same for small or big input pictures.
In my current project I had a naive approach where I clone containers and do lots of composite operations on small pictures and then merge them into a bigger picture, but I guess I should assemble things in bigger pictures first and do the operations then to optimize speed, if I’m cpu limited.

Did I get this right?

Though I guess if the pictures are really huge, then I’ll hit a gpu bottleneck (which I had in another project)

Thanks
Vincent!

2

Yes, there is a constant CPU cost involved with setting up a TOP operation, so if you are hitting a CPU bottleneck you can improve by reducing the number of these operations. The overall GPU cost will likely go down also (if you are rendering hte same total number of pixels), due to this merging.

3

Ok, thanks for the precision!
In the end I’m relying quite heavily on the multi comp from the forum viewtopic.php?f=22&t=5537

This should really a part of touch :wink: