Hello, I’ve experimented with Restir GI + Restir Di, and I must say I’m quite impressed! However, one drawback is the noticeably flat reflections that don’t seem to capture the scene’s light diffusion, compromising realism. While Lumen exhibits significant noise in its reflections, it still aligns…

Yes, I’ve already tried that, but the rendering in reflections is unfortunately not good. It’s a mirror effect like in path tracing that I’m looking for :)

The reflection Restir GI is just simplified Diffuse Restir GI version, we’ll consider to add back more details in next release, and then expose some quality parameter to artist. We are trying our best to trade off the quality versus performance. I think there is another feature that is missing on H…

@Shoonka From your snapshot, I think the Reflection Restir GI seem too bright, you can tweak down that a little bit, the parameter is called Reflection Diffuse Boost in BP_RTX, the cvar is r.RayTracing.GIDenoise.ReflectionDiffuseBoost

Thank you, yes it seems that the reflections are too bright, I will try this command line to see if it helps :) I will keep you updated on the result :)

It also has the reperate roughness cut off value like RT reflection pass. A lot of tweakable stuffs !

I tried the console command ‘r.RayTracing.GIDenoise.ReflectionDiffuseBoost’ with 0 as the value + bp rtx, and even then, it’s still far too bright. Here’s an example: https://image.noelshack.com/fichiers/2023/34/2/1692727089-highresscreenshot00001.jpg . You can easily see that it doesn’t match the …

@Shoonka Since you have reflection restir gi, please untag affact raytracing reflection flag on skylight actor, which overlay reflections without any proper occlusion.

Thank you, I had completely forgotten that it was possible to exclude the skylight from reflections! Now the result is much more convincing. I had found another method by calculating the skylight using ray tracing. Although the result was visually appealing, it was very noisy and didn’t align well w…

Now everything is going well; all the rendering is working correctly with full ray tracing, thanks for the help :) [ptgood01] [ptgood02] [ptgood03] [ptgood04]

Reflection with Restir GI (NvRTX_Caustics-5.2)

Gaming and Visualization Technologies Engines Unreal

Shoonka August 22, 2023, 2:15pm 18

I will try all of this tonight :)

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Reflection with Restir GI (NvRTX_Caustics-5.2)

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