At GTC 2022, NVIDIA showcased real-time path tracing. The green team used a variety of demos that were running on an NVIDIA GeForce RTX3090 at 1080p. And Aaron Lefohn, Vice President of Graphics Research at NVIDIA, shared some short videos.
Going into more details, the first demo showcases The Paris Opera House. This demo has more than 160 million instanced triangles (60 million unique triangles). NVIDIA path-traced the scene with up to 3 bounces of indirect lighting. NVIDIA also used 500,000 emissive triangles for the main lighting, and added 30 dynamic spot lights. This scene was running with 30fps on an NVIDIA GeForce RTX3090.
(1/10) Slides + Recording of Petrik Clarberg’s GDC/GTC real-time path tracing research talk are now available online #GDC2022 #GTC22https://t.co/CNAlWkIwlP pic.twitter.com/lhypEZAoTx
— Aaron Lefohn (@aaronlefohn) March 29, 2022
The second scene shows a tiger in a jungle. The jungle has 3 billion instanced triangles and the tiger has a total of 3.5 million hair segments. The light transport is simulated with up to 30 bounces of path tracing and then denoised. Similarly to the previous demo, this also ran with 30fps at 1080p on an RTX3090.
(4/10) This is real-time path tracing research.
Former offline rendering academic scene (https://t.co/7sntbqtqBo) pic.twitter.com/oxz9TI59Oy
— Aaron Lefohn (@aaronlefohn) March 29, 2022
It will be a while until we get real-time path tracing on modern-day games. So far, we’ve seen real-time path tracing in really old games, such Quake 2 and Serious Sam. And then there is also Minecraft RTX. Nevertheless, these demos look incredible so be sure to watch them.
(6/10) This is real-time path tracing research.
Former offline rendering academic scene (https://t.co/7sntbqtqBo) pic.twitter.com/y5oUpzyi0v
— Aaron Lefohn (@aaronlefohn) March 29, 2022
(8/10) This is real-time path tracing research.
Fully dynamic path traced lighting on ~3B instanced triangles pic.twitter.com/ODztux8FbP
— Aaron Lefohn (@aaronlefohn) March 29, 2022
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prince of Persia from1989 had better animations.
surely, only the brightest minds gather on this website, no doubt about that
since you bring personal insults to the discussion, ok, you’re a moron that doesn’t know what he’s talking about. The prince of Persia animations were revolutionary at the time, check out the documentary about how they were made and with the resources that they had. And it is true, they look better that that stiff tiger. Have you ever seen a tiger walking? This one has no weight on the paws, no middle body movement, no fluidity. Check the paws on the ground, he looks like he is floating. A cat is lascivious when walking. this one is as stiff as a board. Animation will be very difficult to implement correctly in the future, because unlike static images or lighting that can be programmed on how to behave, it will have to be either motion captured or drawn frame by frame.
lascivious
The morons here would be those commenting on animation when the subject is path tracing.
If the subject is “path tracing”, then why did they showcase any animation at all to begin with?
Could it be because the two are intertwined when it comes to games?
It’s a tough nut to crack, I know. I’ll give you the rest of your life to think it over. You just might figure it out, with out enough effort.
Guilty as charged, but it would be nice to see improvements in that department since new ways of computing lighting has been all the rage lately.
When one part of CG doesn’t keep pace with the others, it stands out all the more.
Yes they do. The tiger walking animations look stiff.
I’m sure the Ethereum miners buying up all the GPU care.
You’re not quite up to date, i see…
Eth is moving to Proof of Stake (non minable) in Q2, a few days ago a first test phase concluded. That’s why GPU prices are going lower like crazy in recent days, no more Eth mining.
Blah blah blah they’ve been saying it’s going to move to proof of stake for a year now…
I know… And it was longer than that, but a milestone is a milestone (Kiln network) even if they delayed it further again later, it was a good thing anyways.
I only care about better GPU prices and availability for gaming.
ETH ain’t the only coin out there. I mine a Monero, which uses CPU to mine but with Xmrig on monero ocean I can mine ETH and get paid out in Monero. I just use my 6800 XT & 5600 XT to mine ETH and get paid in Monero. And there are other coins that are more profitable than eth to mine with A GPU and get paid in other coins. So don’t get too comfy, Whether or not eth goes POS it won’t matter. People can blame miners all they want, but lots of AIBs have been selling cards directly to miners. XFX & sapphire have been doing that. There is no shortage, that’s just the card manufacturers hustle to keep that prices up.
Nvidia with their LHR crappy fix does nothing. If they really wanted to get cards in gamers hands they would stop the sellers from selling on Amazon, Newegg & bestbuy. All these stores have no cards to sell, but the sellers who uses those stores as a online market place ALWAYS have 10+ cards to sell you at any given point. And at a 2x-3x mark up.
Yeah but there’s the concept of Market Volume…
Eth has it besides BTC and while it will now pour into alts, not all of it will, but anyways it’s still a non insignificant hit to GPUs demand for mining.
Look at availability and prices again now, it’s at a far better situation than just 2 months ago.
HAHAHAHAHA, you actually believe that
HAHAHAHHAA
you wanna buy some invisible bridges buddy?
Nope, i don’t care about cryptos.
Seems like animation at this quality level is going to be the next big challenge. Static meshes with path tracing isn’t that computationally difficult with current hardware.
It can be downloaded here as a powerpoint presentation with the videos in much higher resolution: https://d1qx31qr3h6wln.cloudfront.net/publications/Research%20Advances%20Toward%20Real-Time%20Path%20Tracing%20GTC%202022.pptx
I still remember waiting an hour for one 1080p image to render in Bryce 3D. I’m still surprised it took this long to have things like this in real time though.
I’m sorry, but I’m not easily impressed by these showcases any more. First time, okay… Second time, meh… 34th time, zzz….
While it looks cool… think another card generation or two is needed before it can be really used effortlessly and make using it worth it’s while. Good use of lighting/reflections can mimick these things easily and most people wouldn’t be able to tell the difference with ray tracing on or off