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AMD have given their GPUOpen website, a place that hosts various resources for game developers with open source and open standards at its heart, a new look.

GPUOpen originally went live a few years ago in 2016, with an aim to have a single place to collect all sorts of developer-focused materials. These are spread across tools, tutorials, code samples and more all while keeping everything under open licenses.

It's not just a website getting a facelift though, this is clearly AMD trying to reposition itself as a very developer-friendly company with their GPUs. Part of that is FidelityFX, their open source (MIT license) collection of optimized shader-based features which has just expanded to include these new tools:

  • FidelityFX Screen Space Reflections: Our implementation of Stochastic Screen Space Reflections (SSSR) delivers high-quality reflections with minimal overhead, via an optimized compute shader and RDNA architecture-optimized denoising.
  • FidelityFX Ambient Occlusion: Our RDNA architecture-optimized Combined Adaptive Compute Ambient Occlusion (CACAO) effect dynamically and efficiently helps improve the appearance of objects based their exposure to ambient light.
  • FidelityFX HDR Mapper: Optimized for use with AMD FreeSync Premium Pro1 displays, AMD’s Luminance Preserving Mapper (LPM) delivers superior HDR and wide color gamut content for games.
  • FidelityFX Downsampler: Single-pass and optimized for RDNA architecture, AMD’s compute shader-based Single Pass Downsampler (SPD) generates texture MIP levels using asynchronous compute for optimal performance.
AMD has a rich tradition of supporting both open standards and open source. Today, I’m very excited to see our relaunched GPUOpen website, which marks AMD’s continued commitment to openness and the enablement of innovation. Whether its fantastic developer tools, vibrant graphical effects, or our easy-to-use SDKs; GPUOpen puts developers at the heart of everything we do. Andrej Zdravkovic, Corporate Vice President for Software

This relaunching was announced yesterday, and AMD said to expect a release of new tools and tech every day throughout this week. On top of that, the're doing a "Let's Build…" virtual event with their engineers in a series of videos. From what they said the presentations will be up around 3PM UTC on Friday, May 15. More on that event can be found here.

See more on the GPUOpen website for all the info.

Article taken from GamingOnLinux.com.
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5 comments

mirv 12 May
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I have nothing much to say other than some of that stuff looks really interesting, and very useful. My interest is most definitely piqued about mipmaps, I'll have to look more at the limitations.

Continued open source investment can only be good. I'm sure AMD are doing this to help adoption of RDNA, or increase experience of the architecture (good for the upcoming consoles), but open source is the way to do that in my opinion, rather than using closed source to attempt vendor lockin.

There are even Unreal Engine patches they offer it seems, although I don't think that's for anything other than Windows (and so probably DX12). Still nice to see.

Cheers for reporting on this, it's always interesting to read about.
TheRiddick 13 May
I do wonder if AMD will be pimping some sort of DLSS tech with their RDNA2 release. I hope so.
mirv 13 May
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So Radeon Rays 4.0 is out, though I couldn't get the example build to work and lost interest. Still, it's out and has support for Vulkan 1.2, using that for compute shaders rather than relying on OpenCL. Radeon Rays is an intersection test library from AMD.

Compressenator 4.0 is out too, prebuilt CLI available for GNU/Linux. I might try compile the gui soon-ish to see if that works. Useful for artists compressing images into formats supported by Vulkan.
TheRiddick 14 May
It would be pretty funny if RTX was wrapped to AMD RT core stuff down the line (assuming RDNA2 cards that is).


Last edited by TheRiddick on 14 May 2020 at 3:49 am UTC
mirv 14 May
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Adding more info here because I found it from originally poking around gpuopen. There are attempts to get FEMFX (the physics library from AMD, open source of course) ported to GNU/Linux.
https://github.com/GPUOpen-Effects/FEMFX/issues/1
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