Sphinx.
 |
It looks like there is a problem with the sample cache in the loop component (in Accumulated slave node).
Take a look at the attached example. I added my own "sample cache" script - notice the difference in rendering time. I'm not really sure what is going on, but it looks like there could be a lot of performance to gain... Native Julia Set.ffxml |
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| Posted: March 16, 2018 8:21 am | ||
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GMM
Moderator
Posts: 3491 |
This is a complex question. I had one of our devs look at it, and here is what I am told:
Beyond pure (x, y) coordinates, our sample cache architecture takes into account all the metadata that comes with the sample, for example the current iteration. We can't simply take the sampling result from the cache for another loop iteration. On the other hand, your cache script only considers pixel coordinates - it is just a coincidence that our native sample cache and your script produce the same results. |
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| Posted: March 23, 2018 9:39 am | ||
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Sphinx.
|
I see - that makes sense. What doesn't make sense to me is why it works with my cache script at all
Anyways - the main problem with these types of loops is that you can't stop the loop. I really hope we get that feature at some point (described here: https://www.filterforge.com/forum/read.php?TID=13828) |
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| Posted: April 2, 2018 10:45 am | ||
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Sphinxmorpher
|
And then again... something is rotten, please consider this example.
There are no distorters of coordinate space involved, no use of iterative metadata, hence no branching. Why is the cache not active? This is really bad for performance.  |
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| Posted: January 20, 2019 5:37 am | ||
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Sphinxmorpher
|
Bump. GMM/Vlad - "By Design", "Bug" or what is going on here?
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| Posted: January 28, 2019 6:03 am | ||
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GMM
Moderator
Posts: 3491 |
Sphinx, I'm still trying to reach the only developer who is able to answer this question. I'll post when I have something to answer.
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| Posted: January 28, 2019 8:16 am | ||
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Sphinxmorpher
|
Thanks GMM. I keenly await the developers answer
 |
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| Posted: January 29, 2019 3:11 am | ||
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GMM
Moderator
Posts: 3491 |
I managed to show your case to the developer. His reply was: "That's weird. I need to think about it".
Sorry, I guess this is not what you expected to hear but at least we know this is not by design. I'll keep you informed |
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| Posted: January 29, 2019 8:50 am | ||
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Sphinxmorpher
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Thanks - thats exactly the kind of answer I was hoping for
 Fingers crossed... |
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| Posted: January 30, 2019 2:43 am | ||
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