Possible Error in part 2 ?

[MichalRymarski]

The last step is adding :

// Visualize depth points.
depthRenderer.update(points);
depthRenderer.draw(camera);

to onDrawFrame() but variable points dont exist in that scope. Since points are supposed to be a FloatBuffer I used DepthData.create(Frame frame , Anchor anchor) , but the tutorial doesnt specify anything about that.
Did I skip something or is the codelab missing something ?