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Frame by Frame Fabric CleanUp
Ok, so I am pretty convinced there is no good way to do this, but just wanted to see if anyone had any good suggestions. I have a shot where a client wants to clean a big stain of wine from an actor’s shirt. The guys is moving significantly so the fabric wrinkles in different areas and the lighting changes as he turns. I did a mocha track and it gets the track pretty well, but when you track a clean plate in it looks crazy as it has no motion and the light doesn’t change. Now I know that you could liquify it, etc, and keyframe levels, etc, but I still don’t think it will be too convincing. I think frame by frame painting will look jumpy and absurd as well. What do you guys think? Any ideas? Any experience with this?
P.S. I can’t post it as the commercial is yet to be released.
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4 Replies
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the only way i can see making this work (without reshooting with a plan about how this would be done in post) would be to duplicate the footage and try to key the stain… you’ll be keying the stain out, but then reversing the key.
then you can try to color adjust the keyed stain to match the rest of the shirt… essentially creating your clean plate form the stain. then it’s just a matter of how you want to ‘wash’ the stain away to reveal the clean plate.
the last resort would be to do a freeze and paint the stain out… old school… maybe add some sparkles as the stain is washed away 🙂 –pitch it as a retro style ‘orbit’ ad.
Kevin Camp
Senior Designer
KCPQ, KMYQ & KRCW -
Sounds like something that you might be able to fib by using a displacement map… thinking out loud… tint (B&W) the shirt and use the wrinkle’s shadows to warp clean plate which was tracked to the shirt, change the layers blending mode…
It’s making sense in my head…
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This sound like a blending mode such as color or hue, that way you can feather garbage matte out a dup layer and not worry about shadows etc.
Simply do a rough hand track and layer over a blending layer so that it changes the stain’s hue/color to the rest of the shirt while retaining its respective shadows/highlights in the b/w world.
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Do not forget to try Change Color, color Link, or Stabilize Color.
bogiesan
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