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thebookofshaders/glossary/any.md

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## All
Check whether all elements of a boolean vector are true
### Declaration
```glsl
bool any(bvec2 x)
bool any(bvec3 x)
bool any(bvec4 x)
```
### Parameters
```x``` specifies the vector to be tested for truth.
### Description
```all()``` returns true if all elements of ```x``` are ```true``` and ```false``` otherwise. It is functionally equivalent to:
```glsl
bool all(bvec x){ // bvec can be bvec2, bvec3 or bvec4
bool result = true;
int i;
for (i = 0; i < x.length(); ++i)
{
result &= x[i];
}
return result;
}
```
### See Also
[any()](index.html#any.md), [not()](index.html#not.md)