In an interview with the creative director of Turn10 Studios Dan Greenwalt at E3 2015 by Kal El from TiC podcast, the question came up over DirectX 12. With the new game which now supports weather, dynamic time of day and 24 player multiplayer we wondered if the game was written with the new efficient API which will be part of the new Windows 10 based user experience on Xbox One. The game also runs at a buttery smooth 60 frames per second at glorious 1080p while doing it. Although this is nothing new for Forza Motorsport games, fans wanted to know how this was achieved, since Project Cars seems to be having a tough time keeping that frame rate stable.
The Creative director then stated that Forza Motorsport 6 will not be running on the new API. The new Forza 6 game runs on a modified version of the DirectX 11 engine which is currently in the Windows 8 based operating system on the Xbox One. He also stated that the new engine managed to run super efficiently right off the bat and that gave them time to add amazing visuals and more details to the game instead of having to suffer through hours of optimizations.
We can however expect that the next Forza Motorsport title or even the next open world title Forza Horizan 3 to support DirectX 12 fully when that launches in the holiday period of 2016.