module.exports = transformMat2d /** * Transforms the vec2 with a mat2d * * @param {vec2} out the receiving vector * @param {vec2} a the vector to transform * @param {mat2d} m matrix to transform with * @returns {vec2} out */ function transformMat2d(out, a, m) { var x = a[0], y = a[1] out[0] = m[0] * x + m[2] * y + m[4] out[1] = m[1] * x + m[3] * y + m[5] return out }