4 ms·
There's nothing brute force about getting this level of quality with just 2 samples per pixel. It is pretty magical actually, only possible thanks to ReSTIR, AI
by redox99 3y ago
There's nothing brute force about getting this level of quality with just 2 samples per pixel. It is pretty magical actually, only possible thanks to ReSTIR, AI denoising, AI upsampling, AI frame generation and strong hardware acceleration for all these steps.
Lumen is very impressive, but definitely not "much smarter" than all those technologies I mentioned.
Anyway, Lumen is basically targeting PS5, while path tracing is "PS6" territory. Path tracing is without a doubt the future, basically the holy grail of rendering. Lumen an intermediate step before the HW is strong enough.
- cubefox 3y agoWell, Lumen must be smarter, otherwise it wouldn't run on significantly weaker hardware. Here is a SIGGRAPH talk with the technical details: https://youtube.com/watch?v=2GYXuM10riw https://youtube.com/watch?v=2GYXuM10riw https://advances.realtimerendering.com/s2022/SIGGRAPH2022-Advances-Lumen-Wright%20et%20al.pdf https://advances.realtimerendering.com/s2022/SIGGRAPH2022-Ad...
- redox99 3y agoBy that logic, Doom must be smarter, otherwise it wouldn't run on significantly weaker hardware.
- cubefox 3y agoWell, Lumen does have lower quality, but it also uses advanced tricks, like the SDF dummies, which safe a lot of performance. It runs even on GPUs without RT hardware acceleration, in software.