Yah, the improved streaming and gamedvr is nice. Curious to see what other features may pop up.
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Yah, the improved streaming and gamedvr is nice. Curious to see what other features may pop up.
As a game developer he's under NDA and probably cannot comment on this as its detailed info pertaining to console hardware.
I think native 4k is absolutely pointless so using that as a benchmark spec is a waste. It will produce 4k frames with some form of reconstruction which may be essentially indistinguishable from the real thing in motion. It's not false advertising.
I do think targeting 1080p may still be the best case.
I do think targeting 1080p may still be the best case.
The Ps4 Pro is not supposed to offer a completely different experience to the Ps4, but rather enhance that experience.
- Increased CPU clock = improved performance in CPU limited scenarios, leading to more consistently locked 30 or 60 (depending on the game)
- Increased gddr5 clock speed + extra 512mb available for developers + improved memory compression from polaris = a requirement with the jump in native res (2x 900p/1080p), it may also enable increased af in comparison to the ps4 but we'll have to wait and see
- x2.3 jump in gpu power = with the 2x jump in native res (before checkerboard) it is also a requirement. Resolution doesn't scale linearly with gpu power requirements so depending on the game the ps4 pro should offer better performance than the ps4 at 2x the native res, leading to more stable framerate in GPU limited scenarios and improved image quality
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1080p checkerboard needs internal sampling resolution (per frame) of 960x1080 (not 1280x720). 1080p checkerboard is 12.5% more samples than 720p. Rainbow Six Siege already shipped with 1080p checkerboard on PS4 and 900p checkerboard on Xbox One. Both consoles run at 60 fps. Killzone Shadow Fall (multiplayer) was 60 fps 1080p interlaced on PS4. Interlaced rendering provides identical performance gain to checkerboard.
Both checkerboard and interlaced rendering produce best results at locked 60 fps, because the reprojection difference between frames is halved compared to 30 fps. Fluctuating frame rate is also not an optimal case for these techniques.
There's a whole thread about fantasy 720p rendering.
So does that mean that 4k checkerboard requires an internal resolution of 1920x2160? And thus takes a significantly greater amount of rendering power vs native 1080p? And if it's already possible on PS4/XBO and thus presumably PC GPU's as well, I'm not getting why it's receiving so much hype on the PS4 Pro?
It's receiving "hype" because it is a h/w solution and not a s/w one. Which means that it's easier to implement in games, Sony make it sound like it's as easy as hitting a 2x 900p/1080p and then the hardware takes care of the rest itself. So instead of the one or two odd games you see implementing checkerboard rendering you'll probably see several titles doing so on the Pro because it's easier (or it's supposed to).
Not useable in every scenario, different rendering pipelines could suffer more from this technique than gain from it.
It's all a question of when it's appropriate.
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I'm curious to know what exactly is made easier, i.e. are we talking about reducing the performance impact and if so by how much, or are we talking about reducing developer workload, or a combination of both? I'm also interested to understand whether this is genuinely a unique hardware addition to PS4P, or whether they are just leveraging standard functionality of Polaris to implement a custom software solution.
http://www.eurogamer.net/articles/digitalfoundry-2016-three-hours-with-playstation-4-pro
Obviously a custom hardware addition, we'll learn more soon when Cerny explains it publicly.
It could be something that will come in the next AMD GPU...
Jonathan Blow said it's not completely free. There are still compromises.
That's probably the actual grunt work for temporal reconstruction.
Because it's PRO's secret sauce. The internet loves them secret sauces, specially when they are insecure about a system's specs.
I hope Scropio has at least 4 SHAPE units, I'm sure that will do.
What I'm wondering about is how flexible it is. I assume they can do custom pattern, the technique looks eerily similar to their PSVR resolution gradient. If they went out of their way to add custom hardware for this it would be crazy not to make it useful for both 4K and PSVR. Or dynamic resolution using this with more or less holes, starting with less important areas of the screen.
And that's when one or two thousand was a lot of money and couldn't be borrowed for 0% over 3 years
From what Sony have said to the press it is a -relatively- flexible h/w solution. Obviously, the specific details are kept hidden behind NDAs and without first hand experience with the device and Cerny not yet making clear what it is exactly all we can say is that Sony implemented a h/w solution for checkerboard rendering. I assume they want to make it easy for developers to say
- develop a game for the Ps4 as planned
- have it run at twice the resolution on the pro
- have the hardware render at 1800p/2160p w/ checkerboard
- not worry too much about the pro version running at sub-par perf due to h/w boosts in almost every area (cpu, mem b/w, gpu)
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SHAPE discussion was interesting, at least it was a powerful processing block. The craziness was more about the Data Move Engines, and The Cloud. I don't understand why DME were talked about for so long.
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