/**
* Subtracts matrix b from matrix a. (A-B)
*
* @param {mat4} out - receiving matrix
* @param {mat4} a - first operand
* @param {mat4} b - second operand
* @returns {mat4} out
* @alias module:modeling/maths/mat4.subtract
*/
const subtract = (out, a, b) => {
out[0] = a[0] - b[0]
out[1] = a[1] - b[1]
out[2] = a[2] - b[2]
out[3] = a[3] - b[3]
out[4] = a[4] - b[4]
out[5] = a[5] - b[5]
out[6] = a[6] - b[6]
out[7] = a[7] - b[7]
out[8] = a[8] - b[8]
out[9] = a[9] - b[9]
out[10] = a[10] - b[10]
out[11] = a[11] - b[11]
out[12] = a[12] - b[12]
out[13] = a[13] - b[13]
out[14] = a[14] - b[14]
out[15] = a[15] - b[15]
return out
}
module.exports = subtract