Point transformPoint(Matrix4 transform, Point point)

Applies the given matrix as a perspective transform to the given point.

This function assumes the given point has a z-coordinate of 0.0. The z-coordinate of the result is ignored.

Source 

static Point transformPoint(Matrix4 transform, Point point) {
  Vector3 position3 = new Vector3(point.x, point.y, 0.0);
  Vector3 transformed3 = transform.perspectiveTransform(position3);
  return new Point(transformed3.x, transformed3.y);
}