transformMat2d function

List<double> transformMat2d(
  1. List<double> out,
  2. List<double> a,
  3. List<double> m
)

Transforms the vec2 with a mat2d

@param {vec2} out the receiving vector @param {ReadonlyVec2} a the vector to transform @param {ReadonlyMat2d} m matrix to transform with @returns {vec2} out

Implementation

List<double> transformMat2d(List<double> out, List<double> a, List<double> 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;
}