module.exports = negate

/**
 * Negates the components of a vec4
 *
 * @param {vec4} out the receiving vector
 * @param {vec4} a vector to negate
 * @returns {vec4} out
 */
function negate (out, a) {
  out[0] = -a[0]
  out[1] = -a[1]
  out[2] = -a[2]
  out[3] = -a[3]
  return out
}