AE CS6 Cache/RAM updating issue

[stephane audrier] "With the new Global Performance Cache it's quite impossible (with out clearing the cache and Purge>Image Cache Memory each time !!!) to get live updates into the Main Comp while you modify something like, for exemple, a Curve on layer from a Pre-Comp !"

I'm not sure I understand the problem here -- you've never been able to have live updates in a locked viewer showing the main comp while tweaking effects in a precomp. These tweaks only ever appear when you release the mouse button, with or without the cache.

I am also not seeing a problem here where the cache fails to invalidate when you tweak something in a precomp. If you have a reproducible case (and you have updated to the current version of AE), you should file a bug report [link].

Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog - What I'm thinking when my workstation's thinking
Creative Cow Forum Host: Live & Stage Events

I do understand -- but when I follow those same steps, I get the correct result. The cache is invalidated and the new, correct render is calculated.

If you have not updated to AE CS6 (11.0.1), you should -- it corrected several global performance cache bugs like the one you're describing. In AE, choose Help > Updates.

Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog - What I'm thinking when my workstation's thinking
Creative Cow Forum Host: Live & Stage Events

It sounds like you're hitting a couple corner cases where the global performance cache doesn't work as it should. It's a pretty new feature, but it's also quite complex, and there are still a few bugs like yours that need to be worked out.

In most cases, the global performance cache provides a big performance boost for users -- but when it doesn't, it is a bit painful to work around.

I'd suggest filing separate bug reports [link] for your issues so that they can be fixed in future releases.

[stephane audrier] "I forgot to mention in my last message that the main comp is time remapped (twixtored, Cache Last Mention unchecked)."

Is that the latest version of Twixtor?


[stephane audrier] "By the way, i've got the same problem (persistent cache) in another comp with a different setup... In that comp i've a light animated with few bezier keys, it's set to be Emitter for Particular. And when i tweak a key of the light trajectory into that comp viewer (not main comp viewer), sometimes i've a "jump" of the trajectory (until i clear the cache of course) because all the last ram preview is still loaded except the frame where i was tweaking the key (where it's well updated)."

I can explain why it's happening: because there are no changes to the Particular layer itself, AE is not invalidating the cache for that specific layer when you move the light. AE does not see the relationship between the Particular layer and the emitter light layer, so it doesn't correctly clear the cache for the Particular layer when the light layer moves.

Again, sounds like a bug to me, and I'd report it.

Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog - What I'm thinking when my workstation's thinking
Creative Cow Forum Host: Live & Stage Events

Also i will update Particular with the latest version.
Maybe it'll solve this specific issue.
i'll tell you if it solves it...

[stephane audrier] "P.S : if Adobe can't fix it, at least they should give the possibility to users to enable/disable the global cache into the preferences panel..."

Sorry for this mistake, there is already the possibilty to disable it !

Me, Myself and I.

I too have this exact same issue. It's utterly infuriating.