I have a 3x3 matrix, how do I convert that into a Transform? I looked through the documentation but I don't know a method that corresponds to this problem?
You can construct a Basis (which is basically a 3x3 matrix) then feed that into the Transform. https://docs.godotengine.org/en/stable/classes/class_basis.html https://docs.godotengine.org/en/stable/classes/class_transform.html