czm_piOverFour

A built-in GLSL floating-point constant for pi/4.

Example

// GLSL declaration
const float czm_piOverFour = ...;

// Example
float pi = 4.0 * czm_piOverFour;

See:

• CesiumMath.PI_OVER_FOUR

Source:

• /Source/Renderer/ShaderProgram.js