module.exports = scale

/**
 * Scales a vec4 by a scalar number
 *
 * @param {vec4} out the receiving vector
 * @param {vec4} a the vector to scale
 * @param {Number} b amount to scale the vector by
 * @returns {vec4} out
 */
function scale (out, a, b) {
  out[0] = a[0] * b
  out[1] = a[1] * b
  out[2] = a[2] * b
  out[3] = a[3] * b
  return out
}