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pachufir
New Member

USA
3 Posts

Posted - 03 Jan 2010 :  03:58:21  Show Profile  Reply with Quote
I'm trying to do something where I want moving people to be slowly replaced by 2D animation. So a characters arm starts to become cartoony and the effect starts ceeping up all over him... that kind of thing....

anyway, i wasn't exactly sure about how to acheive that sort of effect. I have experience in flash and permiere but im willing to learn other software... anyone have any suggestions on the easiest way to pull it off?

rjschwarz
Advanced Member

USA
1845 Posts

Posted - 03 Jan 2010 :  13:01:43  Show Profile  Reply with Quote
There are morph programs out there. Shoot the arm infront of a greenscreen, establish the 2d arm in the same position. Morph between the two shots and then plop in a background and whoop sound effect.

RJSchwarz
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pachufir
New Member

USA
3 Posts

Posted - 03 Jan 2010 :  17:10:03  Show Profile  Reply with Quote
well i dont want a phase... I want it to like start at his finger, and slowly creep up his arm, while hes moving...
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rjschwarz
Advanced Member

USA
1845 Posts

Posted - 04 Jan 2010 :  01:58:49  Show Profile  Reply with Quote
You can export your footage to frame by frame and then use photoshop to update each frame as the animation progresses. I'm sure there are probably more elegant solutions but I don't know them.

RJSchwarz
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Corax
Average Member

Canada
209 Posts

Posted - 04 Jan 2010 :  02:28:47  Show Profile  Reply with Quote
Hmm, I think I know exactly what you're talking about.

A couple of things that come to mind:

Frame by frame is the option that will guarantee the success of your effect, but depending on the length of the shot it could take seemingly forever to finish it. If you did go this route however, I would suggest you import the source video into Flash and start drawing the cartoon substitute overtop. Keeps things in the realm of your experience, and makes for simple exporting and compositing later on.

Hm, what else. Okay, well if you were generating a cell shaded effect (like the rotoscopped cell shading in A Scanner Darkly) using the original footage I would try duplicating the source onto another layer and making a mask surrounding your subject (so you have a layer with just the person, and then the whole source footage underneath). Then apply your cell shading "cartoon" effect to the upper layer. Now, reshape the mask so that it initially only shows the tip of his finger, then go through frame by frame (or with keyframes) and gradually expand the mask through the subject's figure as you see fit.

Make sense? I've never tried the hypothetical effect I've just described, so the workflow might be a bit off but it might be worth a shot.
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pachufir
New Member

USA
3 Posts

Posted - 05 Jan 2010 :  19:00:01  Show Profile  Reply with Quote
yeah I thought about the frame by frame route, the only problem is the amount of time it would take... anyway, i guess I'm going that route, so what's the easiest way to export the frames of a movie as a sequence of images that I can import into flash?
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rjschwarz
Advanced Member

USA
1845 Posts

Posted - 05 Jan 2010 :  20:14:25  Show Profile  Reply with Quote
That would depend upon your editing program I suspect. FCP has an export to Frame by Frame deal built in. I suspect Premier does as well. Not sure about the less expensive software.

Another option is to create a plate with just the background and use that as the background for the animated scene. Then lay that scene beneath the live footage scene and use a matte to slowly dissolve away one in favor of the other. If the backgrounds match and the figures are positioned correctly it could work.

RJSchwarz
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