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Why dont masks work when you posterize time?
hi there
just wondered why, when you posterize time, it doenst seem to recognize the masks on that layer? the masks dont work…
cheers
dan
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3 Replies
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Or enable time remapping and add this expression:
posterizeTime(24)
timeRemapMasks should still continue to work as expected.
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Thanks for your help guys, that all makes sense!
dan
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I just taught this to my class 2 weeks ago.
Masks are not considered part of the footage, so when you add an effect to the footage, the mask doesn’t get the effect – meaning that the mask will continue to move at the comps current frame rate.
One solution (that doesn’t use posterize time) is to pre-comp the video with it’s mask, and then set the frame rate for the comp – set it to whatever your poterized frame rate was.. Then go into the comp settings under advanced, and turn on Preserve frame rate when nested in comp. This keeps the nested comp from adopting the main comps frame rate. This should work.
This technique is also very useful if you have different frame rates – maybe you drop a 24 FPS video that you need to mask into a 30 FPS comp, the mask will continue to move even on repeated frames.
Aharon Rabinowitz
Email: arabinowitz (AT) yahoo (DOT) com
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