The Nuke 3D Engine - Nuke 101: Professional Compositing and Visual Effects - page 400

As you can see, this should bring your axis on top of the tail pipe.
All that remains now is to connect up all the parts to Reconcile3D nodes, one for
each Axis node. But first you need to reset your view.
15. Turn off the Viewer Composite Controls by selecting - from the drop-down
menu.
16. Switch to a 2D view by clicking your mouse pointer in the Viewer and pressing
the Tab key. Make sure you're viewing Read1.
Now for the Reconcile3D part:
17. With nothing selected, create a Reconcile3D node from the Transform toolbox.
18. Attach Camera1 to Reconcile3D1's cam input and Axis2 to Reconcile3D1's axis
input ( FIGURE 9.22 ).
Figure 9.22. Reconcile3D's three inputs, with two connected.