I had the pleasure of working on Forza Motorsport as a Technical Lighting Artist. I worked closely with the rendering team to establish and develop the real-time weather, fog, volumetric clouds and time of day tech that exists is the game. I had the opportunity of tuning the initial global weather and time of day presets. These were later taken by lighter assigned to each track and created the presets themselves.
Here are some of the shots from the presets on Nürburgring.
Huge props to the entire lighting team for doing a phenomenal job on all the tracks!