Spherical Harmonics

Spherical Harmonics are a set of mathematical functions defined on the surface of a sphere. They are commonly used in computer graphics and physics simulations to represent and approximate lighting, sound, and other phenomena that exhibit spherical symmetry.

Usage in Computer Graphics

Sphereical Harmonics are used to approximate the lighting of a scene. They are used to represent the incoming light at a point on a surface, and can be used to calculate the outgoing light from that point. This is useful for real-time rendering, as it allows for efficient global illumination calculations.