freeze function button to speed up large files

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  • Idea
  • Updated 6 years ago
  • Not Planned
as files really get huge sometimes for professional retouchers and start to get slow.

my workaround now:


it would be nice to have a "freeze" button which does that in the background and without the flattened layer in between.

kinda like in logic pro:
http://www.ehow.com/video_2372651_fre...
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Tommy Szewczuk

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Posted 6 years ago

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Chris Cox

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Photoshop already caches the layers above and below where you're working to speed up compositing. But it can't cache adjustments that must be reapplied to whatever you're changing, and "freezing" couldn't speed it up any more without giving inaccurate compositing/previews.
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Tommy Szewczuk

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i don't quite understand what there is needed to reapply? its just a function to flatten everything below - like in the pic attached. when i do this it dramatically enhances the speed!
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Tommy Szewczuk

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it`s just not true, that photoshop does anything like what i mean yet. i work in huge files - where would it cache anything to speed up compositing - it doesn`t know what needs to be cached?!
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Chris Cox

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Someone who knows the code, wrote much of the code, and knows Photoshop inside and out just told you how Photoshop works. That's not something you argue with.

Photoshop does cache intermediate compositing results, in memory and on the scratch disk as needed. What needs to be cached is the composited result underneath the layer you're working on, so it doesn't have to be recalculated as you change the target layer. Some groups can also be cached, along with transformed and filtered results from Smart Objects to reduce recalculation. Of course, not everything can be cached, because of adjustment layers and blend modes above your target layer.
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Tommy Szewczuk

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i don't argue, but you said its caching above that i didnt understand. underneath is great but i will still have to use my workaround then i guess.
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Chris Cox

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The whole point is that your "workaround" is doing exactly what Photoshop already does by default -- it isn't gaining you anything.
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Tommy Szewczuk

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well maybe it does, but its not just a little bitty faster when i do this manually, it`s 1000% faster. if you don`t know this problem you don`t know big files.
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Tommy Szewczuk

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well and if there is only one layer active beneath where i`m working in my file - there is nothing that needs to be cached. thats maybe why it`s faster
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Chris Page

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maybe you should capture on video a comparison? youtube it.