http://www.youtube.com/watch?v=JZZWLhLFgfQ
The ending as the guys are "sliced" or "ribbonized" is spectacular...
any idea how it was done
The ending as the guys are "sliced" or "ribbonized" is spectacular...
any idea how it was done
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Greggl said:Projection mapping on matchmoved geometry and a healthy dose of rotoscoping
and some dynamics work.
NickJushchyshyn said:Priceless.
Projection mapping ... literally projecting the video image onto 3d structures within a 3d application. This takes away the need to manually map the colors of the clothing, etc, to the 3D structures.
Matchmoved .... tracking what happened on the realworld set and animating the motion of the 3D structures to match. Depending on how you shoot, a lot of this can be done with software these days, but given the relatively limited motion shown (masked by chaotic dynamics ... see below), this looks like something that could have been hand animated to match.
Geometry ... computer generated 3D structures
rotoscoping ... old school, hand animation, frame-by-frame. Lots of software to help with this these days, but someone still needs to do the work. Mostly used for "erasing" the solid bodies from the live shoot so they don't appear "behind" the 3D rendered stuff.
dynamics ... calculations in vfx software to automate the actions of CG objects and such. So, the animator "shakes" the position of the hand and elbow, for example, and a dynamics calculation figures out the springy motion of the ribbon-ized arm between them.
Fun stuff.