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## Pixar in a Box

### Course: Pixar in a Box>Unit 4

Lesson 1: Hair simulation 101

# Modeling hair

Discover how Pixar simulates hair motion for characters like Merida in "Brave" using physics and computer programming. Learn about simplifying complex hair models with line segments and particles, and explore the forces acting on these particles, including gravity and neighboring connections. Dive into interactive programs to adjust parameters and create unique looks.

## Want to join the conversation?

• You go on to the "Rigid Body System" thing and you can design the hair anyway you would like.
• So how would you factor in wind in the modeling of hair with the weight of gravity and the other hairs?
• Pixar has tools in their software and observe in real life how these effects work.
• This is so interesting and exciting! What pre-requisite class must I do
(physics?, math?) in order to be able to learn and play with this knowledge?
• Coding is a great class to take and there are online courses here! Physics is another class to take too. As for math, everyone takes math. :) technology and computers are good things to learn about as well.
• what is the link for the simulator
• So along with the wind factor, how would one be able to model the hair if it was wet, or if the character was running through the rain?
• Hello! Animating hair when wet is a challenge. You'd need to make the hair straighter and connected and stick but you need to let the hair be able to sway. You also should make it slightly darker and shinier. Observing from life is a great way to obtain your goal of realism.
• Dear sal khan why are we ordered to each this what is it helping us with
• This gives you an understanding in what Pixar does when animating and is resourceful if you plan on taking a job like this or are just curious!
• when do we need this in the real world
• How do I play that interactive program @