Corona Renderer 3.0 3D max 2015 (buy a scene)+Photoshop
PSD (post-Processing): In the presence of
Preview shows images with post processing, not raw renderings.
There are also buffer settings.
For newer versions of Corona Render , click reset settings (in Corona Renderer itself) to display the materials correctly during rendering.
I should notice that this scene itself doesn't give you some full understanding of working process. The scene is made with the help of some aspects and algorithm which my course "CGBandit "containts. But it might be interesting for you to analyze and test it.
Corona Renderer 3. 3D max 2015