SceneJS_math_addMat4Scalar = function(m, s, dest) {
    if (!dest) {
        dest = m;
    }

    dest[0] = m[0] + s;
    dest[1] = m[1] + s;
    dest[2] = m[2] + s;
    dest[3] = m[3] + s;
    dest[4] = m[4] + s;
    dest[5] = m[5] + s;
    dest[6] = m[6] + s;
    dest[7] = m[7] + s;
    dest[8] = m[8] + s;
    dest[9] = m[9] + s;
    dest[10] = m[10] + s;
    dest[11] = m[11] + s;
    dest[12] = m[12] + s;
    dest[13] = m[13] + s;
    dest[14] = m[14] + s;
    dest[15] = m[15] + s;

    return dest;
}
@param m mat4
@param s scalar
@param dest mat4 - optional destination
@return {mat4} dest if specified, m otherwise
@private