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You can give it a try: https://gitlab.freedesktop.org/bnieuwenhuizen/mesa/-/tree/stable-rt-handles
On 6800XT I got 12 fps with 2560x1440 and medium present for ray racing. Without ray tracing enabled I get around 90 fps. So it's a huge performance hit. But something expected probably for RDNA 2 cards.
May be RDNA 3 can bring it a bit more into usable shape.
Last edited by Shmerl on 16 January 2023 at 1:13 am UTC
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Last edited by Shmerl on 16 January 2023 at 10:16 pm UTC
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https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21406
Last edited by Shmerl on 23 February 2023 at 10:37 pm UTC
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Some benchmarks vs previous Sapphire Pulse RX 6800 XT.
radv: Current Mesa main (git-ed76833705)
resoluton: 2560x1440
settings: ultra, no upscaling.
== No ray tracing ==
6800 XT
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7900 XTX
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== Ray tracing on ==
All ray tracing settings enabled on Medium.
6800 XT
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7900 XTX
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Last edited by Shmerl on 24 February 2023 at 5:30 am UTC
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7900 XTX:
== No ray tracing ==
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== Ray tracing on ==
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Last edited by Shmerl on 24 February 2023 at 10:50 am UTC
30fps at 1440p and no upscaling is getting there! How does upscaling affect the RT performance? I'm still on a 6900XT and will be for a couple of years yet, might give this a go myself to see some figures.
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Last edited by Shmerl on 24 February 2023 at 10:54 am UTC
VKD3D_CONFIG=dxr11 RADV_PERFTEST=rt gamemoderun mangohud %command% --launcher-skip
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But I turn all of those sliders to "On", I get a hard crash.
If I turn the first to on, but leave Reflections, Sun Shadows and Local Shadows off, and RT Lighting off, it works, but probably isn't doing anything, since I don't see much difference.
What are your tests above using, Shmerl?
Edit: Even turning on only "Reflections" causes a crash too.
Last edited by scaine on 3 March 2023 at 1:22 pm UTC
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You need to use Wine 8.2 + vkd3d-proton master, as far as I know Proton doesn't support needed features yet.
And naturally Mesa-main, not release version.
Last edited by Shmerl on 3 March 2023 at 4:05 pm UTC