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

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