AMD FSR Redstone arrives with AMD FSR SDK 2.1

AMD today properly revealed and released AMD FSR Redstone with the AMD FSR SDK 2.1, bringing many enhancements to their upscaling tech. Currently though, there's no direct support for Linux. Most likely, we'll have to wait and see how Valve's Proton / Wine can handle the new tech.

They're only officially supporting Windows 10 and Windows 11 with DirectX 12, that and the main highlight features are still just for AMD RDNA 4 (AMD Radeon RX 9000 series) but they do say there's "analytical fallback modes for select features support RDNA 3.5 architecture and earlier graphics". With this they're also doing a minor rebrand to cut down on all the long names so instead of things like "AMD FidelityFX" it's now just all going under the "AMD FSR" branding.

Some of what's new for this release includes:

• AMD FSR Frame Generation - an advanced frame-generating solution that leverages state-of-the-art machine learning (ML) algorithms to generate high-quality intermediate frames from two consecutive source images, interpolating the motion of pixels between the start and end images. The neural approach significantly reduces artifacts common in analytical interpolation such as ghosting and motion discontinuities.
• AMD FSR Ray Regeneration - a standalone, machine learning-powered real-time denoiser that integrates seamlessly with any game engine, enabling high-quality visuals by denoising inputs from ray-traced workloads. Requiring AMD RDNA 4 architecture graphics, it works best when combined with other AMD FSR “Redstone” technologies to transforming noisy outputs from ray tracing into a clean, coherent image.
• AMD FSR Radiance Caching - a state-of-the-art illumination cache designed to work in tandem with Monte Carlo path tracing to boost rendering performance. At its core is an online machine learning model that continuously trains on complex, multi-bounce global illumination (GI) on-device and in real-time. The result is richer, more immersive lighting environments that respond dynamically without the need for pre-computation or baking.

You can see their video introducing it below:

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Source: AMD Press