thebookofshaders/glossary/abs/README.md
2017-08-23 11:34:44 +02:00

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## Abs
Return the absolute value of the parameter.
### Declaration
```glsl
float abs(float x)
vec2 abs(vec2 x)
vec3 abs(vec3 x)
vec4 abs(vec4 x)
```
### Parameters
```x``` specify the value of which to return the absolute.
### Description
```abs()``` returns the absolute value of ```x```.
<div class="simpleFunction" data="y = abs(x); "></div>
### See Also
[sign()](/glossary/?search=sign), [min()](/glossary/?search=min), [max()](/glossary/?search=max), [Chapter 05: Shaping Functions](../05/)