If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content

Unit 4: Simulation

About this unit

A believable world frequently contains objects that need to move in a realistic way, but are too complicated or numerous to move individually “by hand” - things like leaves on a tree or hairs on a monster’s body. In this lesson, visitors will learn how Pixar uses computer programming to create believable simulated hair as seen in the film Brave.