GART: Games and Applications using RayTracing

[SlmDnk]

I think that's been released since forever ago. I remember messing with it a long time ago.

Ahh... you are correct. The download has been available since April 2021 (link is at the end of the video description): web.archive.org/web/20210415034136/https://www.youtube.com/watch?v=vnpUykzHpv8

 

[Remij]

It got an update: https://developer.nvidia.com/game-engines/unreal-engine/rtx-branch/technology-showcase/get-started

Oh, ok I'll have to check it out again then.

 

[SlmDnk]

Peek inside the 3DMark Speed Way graphics engine - UL Benchmarks

 

[SlmDnk]

https://twitter.com/x/status/1508896834063781888

Screenshots and better quality videos (unzip the PPTX if videos won't show): https://d1qx31qr3h6wln.cloudfront.net/publications/Research Advances Toward Real-Time Path Tracing GTC 2022.pptx

Source: https://research.nvidia.com/publication/2022-03_Research-Advances-Toward

 

[Phantom88]

From the Serious Sam RT maker

 

[PSman1700]

Nice, one of the games many want RT for. Now the first Unreal, HL1, dues ex....

 

[Phantom88]

pics look darker for some reason, but in game it looks fine. Its a nice job done on this. The game is really heavy at full render resolution which you can select in the options. Its a little bellow 60 at 1440p/3080. FSR bumbs it up to 90-100

This guy is already doing Half Life, he has a trailer his channel

 

[DavidGraham]

pics look darker for some reason, but in game it looks fine. Its a nice job done on this. The game is really heavy at full render resolution which you can select in the options. Its a little bellow 60 at 1440p/3080. FSR bumbs it up to 90-100

Just tried it on my 2080Ti, it runs 4K60 using DLSS performance (effectively 1080p native). It looks awesome!

 

[Phantom88]

You can run dlss ? It says not available for me. Wonder what the reason is. I thought he didnt implement dlss yet

 

[PSman1700]

This guy is already doing Half Life, he has a trailer his channel

Aha that i cant wait for to play.

Just tried it on my 2080Ti, it runs 4K60 using DLSS performance (effectively 1080p native). It looks awesome!

I have a 2080Ti (OC) too, will try tonight

 

[Phantom88]

Oh damn, it says right there in the instructions, to use dlss download a dlss file and place it in the folder. I didnt read that ) So yeah, dlss works too. Awesome

 

[Malo]

You can run dlss ? It says not available for me. Wonder what the reason is. I thought he didnt implement dlss yet

There seems to be a DLSS library on the github for it

edit: You just noticed

 

[milk]

https://twitter.com/x/status/1508896834063781888

Screenshots and better quality videos (unzip the PPTX if videos won't show): https://d1qx31qr3h6wln.cloudfront.net/publications/Research Advances Toward Real-Time Path Tracing GTC 2022.pptx

Source: https://research.nvidia.com/publication/2022-03_Research-Advances-Toward

sorcery

 

[Shifty Geezer]

sorcery

Anyone examined the presentation? How's he getting 30 bounces? That in itself sounds excessive for lighting and only warranted for numerous reflective and transparent surfaces.

 

[chris1515]

Anyone examined the presentation? How's he getting 30 bounces? That in itself sounds excessive for lighting and only warranted for numerous reflective and transparent surfaces.

Because of the fur

This is a screenshot from a live capture of our research path tracer.



The scene shows an animated tiger walking through a dense jungle. The jungle has 3 billion instanced triangles.

For the tiger we’ve modeled the fur with explicit geometry. Every single hair strand is a curve. This is tessellated on-the-fly to a total of 3.5 million hair segments.

The light transport is simulated with up to 30 bounces of path tracing and then denoised. This many bounces are required to get the correct shadowing and lighting deep within the fur.



Note the FPS counter in the top-left corner. This renders at slightly above 30 FPS.

The settings are 1920x1080 and rendering is done on a single NVIDIA RTX 3090 GPU.

 

[trinibwoy]

It says “up to 30”. That’s probably a fixed maximum. No way the average number of bounces is close to that.

The bit about tessellating the fur on the fly is interesting. They couldn’t be doing that every frame right?

 

[Krteq]

Multi-Resolution Geometric Representation using Bounding Volume Hierarchy for Ray Tracing (PDF)

 

[TopSpoiler]

Multi-Resolution Geometric Representation using Bounding Volume Hierarchy for Ray Tracing (PDF)

Nice technique to complement the slow software traverser. But the visual difference is quite noticeable in some scenes.

 

[Dictator]

Nice technique to complement the slow software traverser. But the visual difference is quite noticeable in some scenes.

Yeah it is. Not a big fan of the ray traced scene so decimated in comparison to the primary View.

 

[milk]

Nice technique to complement the slow software traverser. But the visual difference is quite noticeable in some scenes.

Seems clever. From their own provided tests, the difference is negligible. The simplified scene representations can look quite horrid when shown directly, but as I understand it, they are only used for very long rays from very diffuse reflections. Sharp mirror-like reflection rays and ones that traveled short distances will still retrieve data from the full resolution polygon representation of the scene, no?