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thebookofshaders/glossary/mix.md

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Mix

Constrain a value to lie between two further values

Declaration

float mix(float x, float y, float a)  
vec2 mix(vec2 x, vec2 y, vec2 a)  
vec3 mix(vec3 x, vec3 y, vec3 a)  
vec4 mix(vec4 x, vec4 y, vec4 a)

vec2 mix(vec2 x, vec2 y, float a)  
vec3 mix(vec3 x, vec3 y, float a)  
vec4 mix(vec4 x, vec4 y, float a)

Parameters

x Specify the start of the range in which to interpolate.

y Specify the end of the range in which to interpolate.

a Specify the value to use to interpolate between x and y.

Description

mix() performs a linear interpolation between x and y using a to weight between them. The return value is computed as x×(1a)+y×a.

See Also

min, max, Chapter 06: Color