Ray Tracing Has a Noise Problem - Hardware Unboxed (www.youtube.com)

submitted 21 hours ago by BombOmOm@lemmy.world to c/games@lemmy.world

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[-] MHLoppy@fedia.io 3 points 18 hours ago

Someone mentioned Neural Radiance Caching to me recently, which Nvidia's been working on for a while. They presented about it at an event in 2023 (disclaimer: account-gated and I haven't watched - but a 6-minute "teaser" is available: YouTube).

I don't really understand how it works after having skimmed through some stuff about it, but it sounds like it could be one of several ways to improve this specific problem?

[-] BehindTheBarrier@programming.dev 3 points 2 hours ago* (last edited 2 hours ago)

It's at least used in RTX Global Illumination as far as the nvidia site mentions it, and I heard rumors about Cyberpunk getting it, but unsure if it's used in current tech or not. I think I heard mentions of it in some graphics review of a game.

[-] MHLoppy@fedia.io 1 points 37 minutes ago

Yeah I'm also confused about its current state / status in currently-released games. It looks like a significant enough of a feature that I would naively assume that if it was implemented in a currently-released game that the devs would boast about it, so I guess it's not there yet?

[+] Quazatron@lemmy.world -14 points 15 hours ago

As someone who grew up when you could physically count the bloody pixels on the screen, this whining about a miserable invisible miniscule artifact makes me palmface very hard.

[-] RightHandOfIkaros@lemmy.world 16 points 15 hours ago* (last edited 14 hours ago)

Also as a person that grew up when game consoles could connect to the TV via an RF Switch, the image-damaging effects of Temporal Anti Alias smearing are extremely visible, and NOT a "miserable invisible miniscule artifact." They're massive on the screen. The particular examples shown in this video do not show it particularly well because it only focuses on raytracing, but the effects of TAA are still visible because turning on raytracing almost always forces on TAA, since the low resolution raytracing benefits from the smearing TAA causes.

Here is a video that goes into way better detail about this problem, watch it and see if you still feel the same.

[-] Quazatron@lemmy.world -3 points 3 hours ago

I focus on the playability and addictiveness of the game; you focus on the immersiveness and photo-realism of the experience.

That does not make either of us right or wrong, we're just weighing different aspects differently.

[-] RightHandOfIkaros@lemmy.world 3 points 2 hours ago* (last edited 2 hours ago)

No, I don't focus on realism over the playability of the game. The last "photorealistic" game I played was Ready or Not. But I have recently been enjoying Vintage Story, The Legend of Dragoon, Koudelka, and other games with "bad" graphics. Aside from Vintage Story, it should be noted that these other games were considered "cutting edge" graphics for their time, but they are by no means photorealistic.

My issue is that TAA (among other things such as UE5s Nanite and Lumen tech when incorrectly used) typically ruins games it is used in, both from an image quality perspective and a performance perspective. I wish that developers would stop using the default or current implementations of TAA so that better, more performant algorithms that don't have the downside of smearing and has the upside of being faster can naturally emerge. Really, these are mostly problems that have already been solved but are ignored because big game studios operate via "Checkbox Development." Rather than spending the time and money to implement these better solutions, they instead just check the default box for the default effect because it is faster and costs them less money.