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After Effects “Freeze” function for Rotoscoping.
Hi there 🙂
So I rotoscoped a object in a layer and pressed the “Freeze” button.
When I then looked at the composition, I could see some things that I wanted to correct, meaning doing a more detailed rotoscoping. But I don’t seem to be able to rotoscope any further, after the Freeze function has been activated.
So I pressed “Freeze” again and then I lost all my rotoscoping and it started rotoscoping again 🙁
Being brand new to After Effects, can someone please explain this “Freeze” function to me and what it does and is used for ?
Regards
Ola
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2 Replies
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The roto brush will constantly update or “propagate” its matte every time you change/open your comp. Freezing prevents it doing this, as it’s a time-consuming process. Unfreezing won’t ‘lose’ your roto, it’ll just allow it to propagate it again. If you go into the effect properties of the roto’d layer, you’ll notice that it will still have all your brush strokes and refine strokes logged at each frame you made them.
See the roto brush? It’s pretty cool.In short, you won’t have lost anything – you can unfreeze, make your corrections, allow it to propagate and re-freeze without losing your initial brush strokes.
It’s also worth noting that refining your matte in the roto effect controls does not require unfreezing, but using the refine brush does.
• Archie •
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Hello Archie,
Thanks alot for the detailed advice 🙂
Looks like a quite big function 🙂
Ola
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