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Path tracing has huge wow factor. The problem with RTX is that on current gen hardware it runs at laughably low sample rates and the result is very noisy even a
by kuzehanka 8y ago
Path tracing has huge wow factor. The problem with RTX is that on current gen hardware it runs at laughably low sample rates and the result is very noisy even after DLDN.
Games are handling this by dialling the amplitude of RTX effects way down and having a smoothing pass. After all that is done, the wow effect is gone and you're just left with a more dynamic version of the same or worse aesthetics that we're already used to.
I expect it'll truly take off on next gen hardware, whenever that rolls out.
Here's what RTX+DLDN actually looks like if not dialled down and smoothed: https://youtu.be/CuoER1DwYLY?t=553 https://youtu.be/CuoER1DwYLY?t=553
My takeaway is yes that quake 2 demo looks really cool, but you just know that they used every black magic hack in the book to get there, and most of it can't be replicated in a modern high fidelity game. It's definitely not a case of flicking an 'RTX on' switch.
- echeese 8y agoWhat's DLDN? I tried Googling it with some relevant keywords but it just brings me back to this comment.
- kuzehanka 8y agoDeep learning denoiser. I don't know if NVIDIA came up with some marketing term for it. It's what allows RTX to produce meaningful images at all despite the renderer running at 0.5-2 samples per pixel which looks little better than random noise. I kind of assumed they'd call it DLDN because they called their deep learning supersampling DLSS. I guess not, go figure. https://www.youtube.com/watch?v=YjjTPV2pXY0 https://www.youtube.com/watch?v=YjjTPV2pXY0