This node is pretty straight forward. Normally, when we build multi cards with noise pattern in nuke, we have limitation to move camera, flickering will show up when cards passing by the camera. like below:
Force the volume for each card as step one, and apply this deep expression as step two, then job done. Every card will fade accordingly when they close to camera.
A cylinder with plenty of polygons.
The cylinder displaced by a Noise texture.
Six cards with smoke on them, laid out along the length of the cave in front of a camera.
It can introduce more interesting look with 2D fog elements on each card.
The setup in the Node Graph.
