To make animation appealing you need to anticipate, exaggerate, and squash/stretch motion.
These do not appear on rotoscoped footage because they do not occur in real life. If you rely on rotoscoping the result is bland movements which lack a "spark of life".
In other words, rotoscoping creates an "uncanny valley" for motion.
These do not appear on rotoscoped footage because they do not occur in real life. If you rely on rotoscoping the result is bland movements which lack a "spark of life".
In other words, rotoscoping creates an "uncanny valley" for motion.