# Deborah R. Fowler

## Math for VSFX

Posted 2013

Updated on May 24 2016

This consists of a growing collection of examples (mostly houdini)
of useful mathematical properties used frequently in visual effects.

Collaboration (password only currently)

Acos is your
friend

Binary/Hexidecimals

Circle
Circumference

Circle Illusion

Coordinate
Systems (Polar versus Cartesian)

Cross
Product

Dot
Product (Two point constraints) (Pythagorean
Theorem/Vector review as well)

Dot Product Follow (Using
the dot product and following a point)

Fractals

Gear
Ratio

L-systems

Phyllotactic Pattern

Phyllotactic Zoetrope

Pythagorean Theorem
at work (train)

Seashells

Shooting
Ball

Similar
Triangles (better roof)

Spinning Fun

Velocity (tank game)

Wave Illusion

Weighted Grade
Average