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Introduction to combinatorics | Crowds | Computer animation | Khan Academy

Pixar explains how they multiply a handful of character parts into thousands of visually distinct background characters using combinatorics. A surprisingly mathematical solution to a very practical problem.

Khan Academy Labs · 4 min · Intermediate · ANI · Animation · 2015

What you take away

Crowd variety comes from recombining a small library of parts, not modeling everyone by hand.

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