Another new NVIDIA Vulkan Beta driver expands Ray Tracing support on Linux

Is RTX and DLSS2.0 coming to Linux sometime? that will be a BIG deciding factor come next gen GPU's. Hopeful AMD will offer a DLSS type solution also but we will see. DLSS2.0 is SIGNIFICANTLY better then 1.0.

Quoting: TheRiddickIs RTX and DLSS2.0 coming to Linux sometime? that will be a BIG deciding factor come next gen GPU's. Hopeful AMD will offer a DLSS type solution also but we will see. DLSS2.0 is SIGNIFICANTLY better then 1.0.

I have no fear of exposing my ignorance if by so doing I may remedy it. What's a DLSS?

DeepLearningSuperSampling, however its more like Super Upscale-Sampling really since it allows for 1440p imagines to look as good or better then 2160p images, and gives a good %50-100 more frames.

For example Control at 4k with RTX on high gives around 39fps but with DLSS2.0 enabled it gives 78fps and actually looks better then native 4k.

PS. You can use any resolution and upscale it to 4k, even 1080p. However it make not look as good as native 4k.


Last edited by TheRiddick on 3 April 2020 at 5:33 am UTC

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• Improve performance of large host-visible VkDeviceMemory allocations


• Fixed YCbCr copy of multi-plane images

One of these fixes seems to have bumped performance in Wreckfest a bit more over the last *.07 Doom specific patch. Getting perhaps half of Windows performance in that game now (where it was about 1/4 before, then maybe 2/5 with the D:E patch)

Quoting: TheRiddickIs RTX and DLSS2.0 coming to Linux sometime?

RTX is just Nvidia's brand name for Ray-Tracing Acceleration. Support for that is already here: that's what all the Vulkan extensions for it - first as a vendor extension, and then as a vendor-neutral Khronos extension - are all about.

If you're thinking of DXR, which is Microsoft's brand name for DirectX With Raytracing, Nvidia have produced a compiler to automatically turn DirectX raytracing shaders into Vulkan raytracing shaders. Philip Rebohle has said that they haven't got their ducks in a row enough to do that translation any time soon in VKD3D ("To be clear, this isn't supported yet, and it'll take quite a while until we get to a point where we can even think about it.") but maybe Feral could use it in their ports: SotTR has raytracing bling in the Windows version but not the Linux version, but it wouldn't work on Macs, and it wouldn't (currently) work on AMD, so they might not feel it's worth the effort just yet.

For the first iteration of DLSS, each supported game had to be run through Nvidia's neural network, and then the results of that machine learning were included in the (huge) Game-Ready Windows drivers so that the Tensor cores could apply it when running the game. The Linux drivers don't include that data. The second iteration seems to be more generalised, so in principle it could possibly be supported if Nvidia / game devs / middleware devs felt it was worth the effort. Nvidia are squeamish about making their proprietary tech widely available, though: see their substitution of pre-rendered animations rather than using Nvidia Flow in Q2RTX.

To add to the above, Q2RTX is working exactly as intended as a testbed for how to do raytracing in Vulkan. Joshua Ashton is currently in the process of migrating Q2RTX from the vendor extension to the vendor-neutral extension, so that's at least one more person that will be intimately familiar with how it all works, and that person is very well placed to give that knowledge widespread impact.