Function normalize

stackgl_modules/index.js:25399–25412

* Normalize a vec3 * * @param {vec3} out the receiving vector * @param {vec3} a vector to normalize * @returns {vec3} out

(out, a)

 * @returns {vec3} out
 */
function normalize(out, a) {
    var x = a[0],
        y = a[1],
        z = a[2]
    var len = x*x + y*y + z*z
    if (len > 0) {
        //TODO: evaluate use of glm_invsqrt here?
        len = 1 / Math.sqrt(len)
        out[0] = a[0] * len
        out[1] = a[1] * len
        out[2] = a[2] * len
    }
    return out
}

/***/ }),