MightySquirrel
Banned
Impressive considering it's running on V56. Crytek still got it.
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Crytek demos realtime raytracing with Cryengine running on AMD's Vega56
- Thread starter Caayn
- Start date
Omega Supreme Holopsicon
Member
The perfect classical algorithms are infinitely faster than quantum computers. So I think lack of dedicated hardware can be overcome through algorithm optimization.
Freeman454
Member
Its a tech demo, just like the RTX star wars demo, both arent really possible in-game though, even less so without raytrace hardware.
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Omega Supreme Holopsicon
Member
they are possible without dedicated hardware you just need theoretically optimal algorithms. But these are not easy to come buy, until then you have to optimize algorithms, but a good enough programmer can pull it off.
DeepEnigma
Gold Member
And makes it (their) hardware reliant, just as many other nVidia dedicated features they pushed out over the years like PhysX, Hairworks, Gameworks, etc.
blu
Wants the largest console games publisher to avoid Nintendo's platforms.
Very unlikely, even with fancy reconstruction algos. In order for a pixel to get (1) a shadow from a single light source, and (2) reflections, you need at the very least one shadow ray and one reflective ray.
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Coulomb_Barrier
Member
Can it run Crysis though?
Chozofication_
Banned
Coulomb_Barrier
Member
I think the first Navi GPUs are supposed to be GTX 1080 level of performance, which would make it faster than a 56 by 10% or more depending on the game. So hopefully the Navi cores on the PS5 APU are this performance. The Navi dGPUs will have a significant clockspeed advantage but the Navi on console will be customized to make up for this (more compute units, higher ROPs etc).
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mortal
Gold Member
Don't be so cut and dry. There will certainly be developers that want to push visual fidelity, with higher poly models, high res textures, more realistic shaders, more detailed animations, and realtime raytracing. With a aim for 30fps/unlocked fps at 4K
There will also be plenty of developers, 1st party and 3rd party, that will opt for better performance, which will still come with a noticeable improvement in presentation. New games running at 60fps at 4k will definitely be also become a more common thing.
There's also considering what developers could be making for the next iterations of VR, which is pushing technology that will benefit gaming in general.
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blu
Wants the largest console games publisher to avoid Nintendo's platforms.
If it's just shadows from a single source then 1 ray/pixel could do. Add GI bounces and you'd be waiting for a while until that image converged with 1 ray/pixel/frame. So again, chances for 1 ray/pixel/frame are very slim.
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Chozofication_
Banned
The programmer on metro said its "up to one ray per pixel on ultra", and half the rays on high settings.
https://www.eurogamer.net/articles/digitalfoundry-2019-metro-exodus-tech-interview
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thelastword
Banned
This is the most imrpessive raytracing I've seen so far this gen.......Amazing stuff by Crytek and the open standard....
blu
Wants the largest console games publisher to avoid Nintendo's platforms.
Ah, thanks for the link.
So basically they rely on a very aggressive TAA to handle extreme under-sampling. Even though in such situations the AA would make sure no noise is visible, sample starvation at sharp camera movements/turn-arounds should manifest as spots and areas changing luma abruptly over a few frames.
That said, we don't have such a rigid rpp limitation with our in-house RTX tech, but we still rely on TAA, as we don't do hybrid.
ed: BTW, in the video to the article they mention they do 3 rpp, and the undersampling effects I'm referring to are still visible.
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Chozofication_
Banned
blu
Wants the largest console games publisher to avoid Nintendo's platforms.
There's a chance they do 1/sub-1 rpp at 4K (checkered) and 3 rpp at HD. Also, as I mentioned, RTX stack support evolved with time (along with devs' understanding of the tech), and many devs managed to squeeze more rpp with time.
Freeman454
Member
Even faster on a titan maxwell? Impressive for such old gpu. Maybe one day my 1070 will run metro rt 
alabtrosMyster
Banned
Realistically speaking the examples we saw in battlefield 5 showed us that neither should nvidia's solution be used without the assistance of older techniques, I mean in many areas battlefield 5 had so much temporal artifacts that it looked much worse than what we have now, without even taking into account the drop in performance (in my opinion obviously), same for the much simpler ray traced quake 2.
Metro seems like the only good enough implementation in a game so far, I don't think they use it for the whole screen, and all effects (only lighting, if I remember correctly, and I'm still wondering if they gimped their implementation for those without RTX, given that Nvidia want to sell those games...).
I'm way over my head on this, but the reflections in the demo seemed to show less temporal artifacts than what i have seen on rtz battlefield 5.
Shin
Banned
Interesting article about this, I didn't read it all but some of the pictures leads to questions.
https://www.techquila.co.in/cryteks-ray-tracing-demo-fake/
https://www.techquila.co.in/cryteks-ray-tracing-demo-fake/
blu
Wants the largest console games publisher to avoid Nintendo's platforms.
Engine providers have no use of misrepresenting their engines' tech -- their engines' customers will discover any shenanigans sooner than later.
Ascend
Member
RTX doesn't do full ray tracing either. So... What's the big deal? Seems to be either nVidia propaganda, or someone not knowing what they're talking about.
SonGoku
Member
lol give it up already, every gen is the same.
Theres no such thing as a 60 fps standard!
Hey! that's what i thought too! I expect more of these type of GI techniques to take off next gen, not raytracing.
So this is a rasterization technique? can somebody who knows explain
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Ascend
Member
SonGoku
Member
So more of a raster technique?
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Ascend
Member
I'm not sure what exactly they did in the recent demo. But basically, whether it's cone tracing or voxel tracing, it is a form of ray tracing, but, you can see it as the equivalent of lowering the resolution. Because native ray tracing uses a ray (or multiple rays) for every single pixel. By using Voxels, you're basically using ray tracing on 9 pixels at the same time, for example, which really lowers the load. This is a viable solution until hardware catches up to full ray tracing.
IbizaPocholo
NeoGAFs Kent Brockman
CRYENGINE | How we made Neon Noir - Ray Traced Reflections in CRYENGINE and more!
Ahead of GDC 2019, we revealed Neon Noir, a research and development project showcasing real-time mesh ray traced reflections and refractions created with an advanced new version of CRYENGINE’s Total Illumination real-time lighting solution. Needless to say, we did receive a lot of questions...
www.cryengine.com