One of the big marketing catchphrases for the Xbox One X is for the notion of ‘True 4K’, emphasising a native 2160p resolution without having to resort to techniques like checkerboarding as on PlayStation 4 Pro. It’s a nice idea, but while Microsoft will naturally be able to push this internally, third parties don’t seem to be having quite as much luck of matching this with a high, consistent frame rate.
For example, Project Cars 2 was announced as not being native 4K, and now there’s Killing Floor 2, which is coming to Xbox One in August and will have Xbox One X support for when that console releases. The game will run at 1800p instead of 2160p, albeit with the higher quality textures, shadow maps and shadow draw distance. By comparison, the PlayStation 4 Pro runs the game at 1800p checkerboard, which means that the Xbox One X is at a higher native resolution.
Tripwire’s Senior Graphics Programmer Dave Elder explained:
Xbox One X was a very smooth and easy platform to develop for. It took very little engineering effort to get our base Xbox One game running on the Xbox One X. It took maybe 4 hours of programming effort total.
Killing Floor 2 runs at native 1800p, fixed resolution (no checkerboarding) on Xbox One X. We did experiment with true 4k rendering, but the frame rate drop was a bit too significant. 1800p provides the optimal balance between visual quality and performance in Killing Floor 2.
We don’t have a specific frame rate target for Xbox One X, although the game does run at higher frame rates than the base Xbox One, even at 1800p resolution. We will be using Ultra textures on Xbox One X. We are also increasing the resolution of our shadow maps and shadow draw distance.
As announced last week, the Killing Floor 2 is out for Xbox One on 29th August, with a platform exclusive Freezethrower weapon and Wasteland Armor uniform.