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How to create a velocity mask?
I mostly think I know what I’m doing when working with after fx, but actually I’m kinda stucked. Hope someone can help me.
I want to apply a filter to a video. But its intensity should be based on the velocity of the pixel. How to get a velocity mask?
There must be a way to achieve this – maybe by getting some information from the CC Force Motion Blur? Any ideas?
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2 Replies
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The only product I’ve ever seen that will expose motion vectors in AE is Twixtor:
https://www.revisionfx.com/products/twixtor/features/#ae_compatible_4
The vectors may not be detailed enough for your purpose though. A trial run might be in order 🙂
I’ve used this plug in the past to generate some pretty cool particle fields that react to motion in live footage.
Darby Edelen
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Good thinking… didn’t actually realize, that twixtor does motion detection for the retiming.
I will give it a try. Thanks!
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