Digital Foundry Article Technical Discussion [2021]

Discussion in 'Console Technology' started by BRiT, Jan 1, 2021.

  1. snc

    snc
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    Are you planning to do own analysis of control photomode fps maybe ?
     
  2. cwjs

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    From a polygon article: "“So we take, for example, an enemy and we take information from the previous frame. We reproject it from the position of the camera enemy in the next frame, and we kind of draw this trail of the enemy," explains Control lead VFX artist Elmeri Raitanen. "But that would be boring to look at so then it gets advected with the fluid simulation and then, after that, it gets broken into the colors of dispersion.”"

    Gonna stick with this guess -- I think remedy is not lying about no tearing, but this effect is either introducing something that looks very similar to a tear at the right angle, or some internal rendering buffer used for the effect (fluid sim or something) is tearing, not the frame.
     
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  3. Globalisateur

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    We already have such an analysis thanks to DF. I am more interested into a like for like comparisons during gameplay.
     
  4. Shortbread

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    Thank you. So you are VG Tech!?
     
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  5. Shortbread

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    But wouldn't this affect PS5 as well? So far, VGA hasn't point out this being an issue on PS5 (not saying it doesn't occur).
     
  6. BRiT

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    I don't see how any tearing would be possible using Triple Buffering as the developers indicate they are using.
     
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  7. snc

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    maybe its only active during gameplay when there is fps cap ?
     
  8. Globalisateur

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    I think the corridor of doom is bottlenecked by plenty of transparencies (alphas) due to the scene being behind the glass. XSX has more compute but is more limited by its pixel fillrate hence the PS5 is able to reduce the gap here.
     
  9. Kugai Calo

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    Wow you really do live up to your name... Keep fighting the good fight, soldier!
     
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  10. Riddlewire

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    Answering my own question here: Not unlocked.
    I reinstalled the game on my One X. Photomode is either capped at 30 or the One X doesn't have the power to push much/any above that. Hard to tell by eye alone.
     
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  11. iroboto

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    Please let me know what the results are, I performed an absolute diff on the 2 frames using their 4K H264 encode and found a lot of soft noise below the tear. It's probably not ideal because I'm working on a second encode, but without access to source, I'm not sure how else I can do better in this regard.
     
  12. iroboto

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    You'll need to explain this data point here if it's alpha or bandwidth based, because IIRC, the 6800XT has it in spades;
    [​IMG]
     
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  13. Globalisateur

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    This proves AMD is bad with RT compared to Nvidia. The consoles? well:
     
  14. iroboto

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    Then the majority of this particular benchmark is RT limited and not alpha transparency limited.
     
  15. Globalisateur

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    Why should it be black or white? It's grey. I'd guess some scenes are more limited by RT computation, others more by the raw bandwidth and others more by the alpha effects. When you average those scenes it gives you 16% advantage for XSX.
     
  16. Lurkmass

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    A potential reason why AMD on PC is comparatively behind here compared to consoles is that the game isn't updated on PC ...

    A good chunk of the performance deficit we see could be fixed if we use their driver DXR extension like we see in Dirt 5 where they probably are using AMD's AGS SDK ...
     
  17. DavidGraham

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    Dirt 5 doesn't use even 1/10 of the RT workloads that Control uses.
     
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  18. Lurkmass

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    That's still performance that their leaving off the table which can be easily picked up ...
     
  19. cwjs

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    Yeah, so if my guess is correct it'd appear on every platform, but need the exact right position/angle relative to an enemys damage vfx to show. (corollary -- if i am right its also probably quite rare on xbox and only happens under these conditions)
     
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  20. thicc_gaf

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    Ah-ha! Take THAT, King Thrash Gaming!!! Seriously, some of the speculation on this stuff was just getting ridiculous.

    On some level, I admire that more people want to do technical analysis but it'd help if they did a bit more research and didn't have thinly-veiled animosity towards a particular platform brand or conspiracy theories about a very specific analysis channel being a shill for said particular platform brand on the grounds of zero evidence.
     
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