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## Mod
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Compute value of one parameter modulo another
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### Declaration
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```glsl
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float mod(float x, float y)
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vec2 mod(vec2 x, vec2 y)
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vec3 mod(vec3 x, vec3 y)
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vec4 mod(vec4 x, vec4 y)
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vec2 mod(vec2 x, float y)
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vec3 mod(vec3 x, float y)
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vec4 mod(vec4 x, float y)
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```
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### Parameters
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```x``` specify the value to evaluate.
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```y``` specify the value to obtain the modulo of.
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### Description
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```mod()``` returns the value of ```x``` modulo ```y```. This is computed as ```x - y * floor(x/y)```.
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<div class="simpleFunction" data="y = mod(x,1.5); "></div>
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### See Also
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[floor](index.html#floor.md), [fract](index.html#fract.md), [ceil](index.html#ceil.md), [Chapter 05: Shaping Functions](../05/)
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