thebookofshaders/glossary/floor/README.md

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## Floor
Find the nearest integer less than or equal to the parameter
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### Declaration
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```glsl
float floor(float x)
vec2 floor(vec2 x)
vec3 floor(vec3 x)
vec4 floor(vec4 x)
```
### Parameters
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```x``` specify the value to evaluate.
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### Description
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```floor()``` returns a value equal to the nearest integer that is less than or equal to ```x```.
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<div class="simpleFunction" data="y = floor(x); "></div>
### See Also
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[ceil](/glossary/?search=ceil), [fract](/glossary/?search=fract), [mod](/glossary/?search=mod), [Chapter 05: Shaping Functions](/05/)