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Vector Paint on Precomposed Layer - 1 Frame Mismatch

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Paul Conigliaro
Vector Paint on Precomposed Layer - 1 Frame Mismatch
on Nov 9, 2009 at 10:54:01 pm

I have a quicktime of talent over a white backdrop which is to be pulled out. Unfortunately, the talent's shirt is also white. So I'm painting back in her shirt with vector paint (in original alpha). (It's only 50 frames, so not terrible.) However, I'm running into this issue

We precomposed the talent so we only need to make changes once across multiple comps if the client needs to change something. However, on this particular comp, it is reading the comp source data 1 frame off, but the vector paint on that layer is correctly. Put another way, the precomp is displaying TC 00:48:11, but pulling vector paint data from 00:48:12. This is obviously causing problems:

vector paint mismatch

Has anyone else seen this before?

This happens regardless of the composite type set in vector paint. If I enable Time Remapping, I can see that the TC is reading 1 frame off, but slipping doesn't remedy the problem.


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Chris Wright
Re: Vector Paint on Precomposed Layer - 1 Frame Mismatch
on Nov 10, 2009 at 12:44:45 am

A simple motion tracked garbage matte would fix the white but there's a bigger problem. If you have a lot of motion, vector paint will look jumpy because you really need to paint on all the fields and not just the lower fields.

http://forums.creativecow.net/thread/2/869866#869873

You can do that by doubling the framerate in the composition settings - it will show you each field in the interlaced video. It means twice the amount of paint work though... that's why no one uses vector paint in interlaced footage.

and here's an automatic alternative to your problem.

http://forums.creativecow.net/thread/2/967119#967119

http://technicolorsoftware.hostzi.com/


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Paul Conigliaro
Re: Vector Paint on Precomposed Layer - 1 Frame Mismatch
on Nov 10, 2009 at 1:04:51 am

The footage is all progressive. I'm working with 2k Red footage at 23.976.


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Chris Wright
Re: Vector Paint on Precomposed Layer - 1 Frame Mismatch
on Nov 10, 2009 at 1:15:31 am

another thought is, an autotrace luma might work too, but I don't know why the tc is off, try a slipped vector precomp. and I would also check all the comps are the same framerate.


http://technicolorsoftware.hostzi.com/


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