[Phoronix] NVIDIA Demonstrates Porting Of DirectX Ray-Tracing To Vulkan - Overclock.net - An Overclocking Community
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[Phoronix] NVIDIA Demonstrates Porting Of DirectX Ray-Tracing To Vulkan

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post #1 of 23 (permalink) Old 03-02-2020, 08:07 PM - Thread Starter
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[Phoronix] NVIDIA Demonstrates Porting Of DirectX Ray-Tracing To Vulkan

Source: https://www.phoronix.com/scan.php?pa...-DXR-To-Vulkan

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Big "open-source" achievements aren't too common for NVIDIA or Microsoft much less together, but thanks to their open-source work on the DXC DirectXCompiler it's possible to easily convert HLSL DXR shaders to SPIR-V for Vulkan.

NVIDIA has written a new technical blog post on bringing HLSL ray-tracing to Vulkan with the same capabilities of DirextX Ray-Tracing. This effort is made feasible by Microsoft's existing open-source DirectXCompiler (DXC) with SPIR-V back-end for consumption by Vulkan drivers. Last year NVIDIA contributed to the open-source DXC support for SPV_NV_ray_tracing. This in turn with the open-source tooling allows converting DXR HLSL shaders into SPIR-V modules for Vulkan.

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post #2 of 23 (permalink) Old 03-02-2020, 08:37 PM
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NV and MS secretly admit DX12 is currently trash
jk jk.

oh wait, wonder if we'll see RDR2 Ray Tracing update on the vulkan side then! (runs and looks better in my world)

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post #3 of 23 (permalink) Old 03-03-2020, 12:52 AM
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Quote: Originally Posted by skupples View Post
NV and MS secretly admit DX12 is currently trash
jk jk.

oh wait, wonder if we'll see RDR2 Ray Tracing update on the vulkan side then! (runs and looks better in my world)
I expect nvidia to push for it in order to lure more developers who prefer using vulkan over DX12 or xbox developers to use ray tracing, where they currently have the lead.
The more use of ray tracing, the higher they can say take a lead in sales as long as AMD don't have an answer (which I don't expect to arrive in big navi, since AMD seem to play to use software solution).


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post #4 of 23 (permalink) Old 03-03-2020, 05:56 AM
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I'm stoked. vulkan is the only place where mGPU seems to be a thing anymore
give developers ALL the reasons to use it.

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post #5 of 23 (permalink) Old 03-03-2020, 07:51 AM
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Quote: Originally Posted by skupples View Post
I'm stoked. vulkan is the only place where mGPU seems to be a thing anymore
give developers ALL the reasons to use it.
Part of me wonders if ray tracing will get dedicated hardware for the high-end, like a tensor core only add-in card.

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post #6 of 23 (permalink) Old 03-03-2020, 08:34 AM
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Sure if you want the latency penalty of a dedicated card for non interactive rendering.
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post #7 of 23 (permalink) Old 03-03-2020, 08:45 AM
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Quote: Originally Posted by Defoler View Post
I expect nvidia to push for it in order to lure more developers who prefer using vulkan over DX12 or xbox developers to use ray tracing, where they currently have the lead.
The more use of ray tracing, the higher they can say take a lead in sales as long as AMD don't have an answer (which I don't expect to arrive in big navi, since AMD seem to play to use software solution).
Nah, the consoles are pushing for ray-tracing, so I would expect AMD to have some form of a ray-tracing solution available with Big Navi and on all other RDNA2 gpu's


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post #8 of 23 (permalink) Old 03-03-2020, 10:08 AM
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nVidia is trying to leverage their technology on Vulkan before AMD comes with their implementation.
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post #9 of 23 (permalink) Old 03-03-2020, 10:26 AM - Thread Starter
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Quote: Originally Posted by NightAntilli View Post
nVidia is trying to leverage their technology on Vulkan before AMD comes with their implementation.
Khronos Group already stated they're going to be using nVidia's VKRay as their default template.

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post #10 of 23 (permalink) Old 03-03-2020, 10:45 AM
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Quote: Originally Posted by WannaBeOCer View Post
Khronos Group already stated they're going to be using nVidia's VKRay as their default template.
And they want to make sure it stays that way.

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