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FilmSkool — a free film school

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.

Watch it

Filed under

Oscar winners for visual effects

Oscar winners for animated feature

Toy Story 3 (2010)
Up (2009)
WALL·E (2008)
Wallace & Gromit: The Curse of the Were-Rabbit (2005)
The Incredibles (2004)

Books on animation

The workstation

Calibrite ColorChecker Video — The chart you shoot so the grade has a truth
G.Skill 64GB DDR5-6000 kit — The floor for 4K raw with effects
Western Digital WD_BLACK SN850X 4TB — The other one, usually cheaper
Calibrite Display Pro HL — Calibrates the monitor you are trusting
SanDisk Professional G-DRIVE 8TB — Desktop archive drive built for footage
Corsair 128GB DDR5 kit — For Unreal, caches and twelve open applications

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