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Scrubbing through cached comp very sluggish

Sep 4, 2013 7:26 PM

I have a comp that has been RAM Previewed and consequently, the entire status bar above the timeline is green.

 

However if I take my playhead and drag through the timeline, the screen updates very very slowly (perhaps 1~2fps).  But I can RAM Preview at full speed.

 

Any ideas? I thought once it's cached, and you aren't changing any parameters, it should scrub through because it's all loaded in RAM, yes? I swear I've done this a billion times in the past.

 

48GB Mac with 10GB free for other stuff. 200GB HDD Global Cache (although nothing in the status bar is blue. It's all green)

 
Replies
  • Currently Being Moderated
    Sep 5, 2013 12:00 AM   in reply to Navarro Parker

    You may be using a specific plug-in/ effect/ feature that continually requests temporal information. Could be by design, could be intentional. also, naturally, expressions will get in the way of cacheing operations many times...

     

    Mylenium

     
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  • Currently Being Moderated
    Sep 5, 2013 12:37 PM   in reply to Navarro Parker

    If you post the expressions that are causing the slowdown to the Expressions forum here we may be able to help. Sometimes it's easy to get a loop going that has to go back and re-calculate every frame for the next one. These are render killers.

     
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