A quick car paint project for some lockdown fun.
The model isn’t mine, though I do have to take responsibility for the materials, lighting and post processing.
I hadn’t played with car paint for a long time, and didn’t want to spend a week modelling a car, so I used a free download. The model is by Yorvin Luna Wisky and Davide Tirindelli.
I imported the model from Blender 2.82 to 2.79, and rendered with V-Ray 3.7
I didn’t change the tunnel much since it looked fine already, and I used a combination of the sun beams node and a depth pass to simulate the volumetrics at the back.
EDIT - Adding two later renders. The Tesla and Camaro car models are from the same source. I can only take credit for the materials, lighting and compositing:-
Did you use that tube object properties Render > visible to: camera and other options empty ? Because car has environment lighting (hemi lamp or environment node) reflections.