thebookofshaders/glossary/all/README.md

Any

Check whether any element of a boolean vector is true

Declaration

bool all(bvec2 x)  
bool all(bvec3 x)  
bool all(bvec4 x)

Parameters

x specifies the vector to be tested for truth.

Description

any() returns true if any element of x is true and false otherwise. It is functionally equivalent to:

bool any(bvec x) {     // bvec can be bvec2, bvec3 or bvec4
    bool result = false;
    int i;
    for (i = 0; i < x.length(); ++i) {
        result |= x[i];
    }
    return result;
}

See Also

any(), not()