I only have a 1080 TI, so I wanted to see what could be achieved with as little RT stuff as possible. Here are what I ended up with so far.
I'm quite pleased with the results by just using Ray traced shadows for the sun, and ray traced AO on the post process volume. I also like the trick of using a skylight but turning of shadows for it.
Before/after images. (You can switch between Off, Shadows and Shadows+AO)

I'm quite pleased with the results by just using Ray traced shadows for the sun, and ray traced AO on the post process volume. I also like the trick of using a skylight but turning of shadows for it.
Before/after images. (You can switch between Off, Shadows and Shadows+AO)
- https://imgsli.com/MzI3NQ/0/2
- https://imgsli.com/MzI4MA/0/2
- https://imgsli.com/MzI3OQ/0/2
- https://imgsli.com/MzI3OA/0/2
- https://imgsli.com/MzI3Nw/0/2
- https://imgsli.com/MzI3Ng/0/2
- r.RayTracing.Reflections is on by default. Disable it if you're not using it. (It took quite a bit of fps while doing nothing in my scene)
- I enabled r.RayTracing.Shadows and r.RayTracing.AmbientOcclusion
- On the skylight i turned off "Cast Shadows" (I let the post process RT AO handle it)
- For this scene I set the Post process volume Ambient Occlusion intensity to 1 and samples per pixels to 3.
- Since Ray tracing is mostly a per-pixel-cost, you get nice results "at any distance" like in this picture: https://imgsli.com/MzI3Ng/0/2

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