Function fromQuat2

docs/app/js/sanddance-app.js:73570–73585

(out, a)

    return out;
}
function fromQuat2(out, a) {
    var translation = new _commonJs.ARRAY_TYPE(3);
    var bx = -a[0], by = -a[1], bz = -a[2], bw = a[3], ax = a[4], ay = a[5], az = a[6], aw = a[7];
    var magnitude = bx * bx + by * by + bz * bz + bw * bw; //Only scale if it makes sense
    if (magnitude > 0) {
        translation[0] = (ax * bw + aw * bx + ay * bz - az * by) * 2 / magnitude;
        translation[1] = (ay * bw + aw * by + az * bx - ax * bz) * 2 / magnitude;
        translation[2] = (az * bw + aw * bz + ax * by - ay * bx) * 2 / magnitude;
    } else {
        translation[0] = (ax * bw + aw * bx + ay * bz - az * by) * 2;
        translation[1] = (ay * bw + aw * by + az * bx - ax * bz) * 2;
        translation[2] = (az * bw + aw * bz + ax * by - ay * bx) * 2;
    }
    fromRotationTranslation(out, a, translation);
    return out;
}
function getTranslation(out, mat) {
    out[0] = mat[12];
    out[1] = mat[13];