thebookofshaders/glossary/inversesqrt.md
2015-04-18 10:41:34 -04:00

560 B

Inversesqrt

Return the inverse of the square root of the parameter

Declaration

float inversesqrt(float x)  
vec2 inversesqrt(vec2 x)  
vec3 inversesqrt(vec3 x)  
vec4 inversesqrt(vec4 x)

Parameters

x specify the value of which to take the inverse of the square root.

Description

inversesqrt() returns the inverse of the square root of x.

See Also

pow, sqrt, Chapter 05: Shaping Functions