This is a small investigation into the relationship between foreground and background elements. I wanted to make a black coloured building in contrast to a lighter background. I also mixed a lot of different light sources. Underneath you can see an example of the lights at the bottom of the streets which I rendered out as a separate element.
I did a lot of post-production work in Photoshop and I needed a tool to manipulate the colours and brightness along the vertical axis. The Zdepth render pass is a handy mask for creating a sense of atmosphere, but there is no way to create a gradient along the vertical axis. So I decided to make something myself with the help of the Vray Distance Tex material. You can see a tutorial below.