The Nuke 3D Engine - Nuke 101: Professional Compositing and Visual Effects - page 411

Figure 9.35. The whole messy tree.
Noticethatthereareallsortsofsmalltreesandopen-endedbranchesintheDAG.
This is common in tree-based systems.
Youcandoalotmoretothisshot,andbynowyouhavealotoftools.Ifyouhave
time, try to remove the red sticker on the bumper of the car. You'll probably need
a RotoPaint node to clean one frame, a FrameHold node to freeze that frame, and
more Reconcile3D nodes and Tracker nodes to move that frame over time. Good
luck.
Final Disclosure
Nowthat youhavefinished thiscomposite, Icantell youalittle secret. Thebitwhereyou
placed your Axis2 on what appeared to be the latch and Axis3 on what appeared to be the
tail pipe? That was a lie. You couldn't possibly have placed the axes correctly by looking
at just the 2D image. You have no way of knowing where those two elements are in 3D
space.
So how did it work after all? And why did you have to go through this process if it's all a
lie?
Well, it worked because this shot has what's called a nodal camera —a camera that's not
moving. It's panning and tilting, and the zoom changes, but the location of the camera
itself in space isn't changing. Therefore, there is no perspective change in the shot. All
points in the shot move just as they would in a 2D move you would do using a Transform