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It's the PlayStation 4 Pro demo many hoped to see - but never came to pass. This is Uncharted 4 running at 60 frames per second, and it looks sensational. Sony's new console is built from the ground up principally to run PS4 engines at higher resolutions with similar performance levels to base hardware, but many hoped to see game developers take a different approach. As things stand, the video on this page stands apart as a kind of 'what if', the path not taken, if you will. What if PS4 Pro's 2.3x GPU boost could be used to double Uncharted 4 frame-rate instead of targeting 4K displays?Before we go any further, it's important to emphasise that, strictly speaking, this demo wasn't captured in real-time and didn't require any kind of access to PlayStation 4 Pro hardware - it's actually derived from footage taken from the standard console running the retail version of the title. As you progress through the game, players have the opportunity to buy 'cheats' and bonuses - one of which is a slow-motion mode. This maintains the game's 30fps frame-rate, but slows the action down.
The captured video is then sped up to 200 per cent, nullifying the slow-motion effect and translating the 30fps update to 60fps. It's a really neat trick and as much as we'd like to take credit for the idea, the technique was first utilised by NeoGAF user Kanuuna, who contacted us a few days back and showed us his proof of concept video showing the Madagascar stage, that you can watch here - yes, more Uncharted 4 60fps footage! Compromises here are two-fold - first of all, audio can't be reconstructed without a metallic echo and secondly, the game itself isn't running at 50 per cent speed in slow-mo mode. It's actually a touch more spritely, so while the 200 per cent speed boost gives us the frame-rate we need, it also gives the impression of the game running faster than it actually does in standard gameplay. Uncharted 4 Turbo Edition, any one?
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