I'd like to render out my scene as separate passes using the render layers. However, the shot has a spaceship flying through a cloud and I'd like to render the ship and cloud separately. I do believe this is where the z-depth channel comes in use. However I have questions.
1.) The docs don't define the difference between Closest or Furthest Visible Depth. Does anyone know?
2.) I can't seem to figure out how to use this channel in after effects. Does it support it? Is it part of AE's 3D layers that I don't know how to use?