NVIDIA’s DLSS is one of those few technologies that comes along every so often and legitimately delivers the seemingly impossible: more with less. AMD’s first attempt at challenging DLSS wasn’t quite as advanced; while the original FidelityFX Super Resolution had its advantages, the image quality wasn’t always in the same ballpark.
That said, if you’re not playing God of War, Deathloop, or Farming Simulator 22, you probably may not have seen FSR 2.0 in action. If you’d like to do so for yourself, head over to the GPUOpen project and download the sample package. It’s the button labeled “FSR 2 sample.” This 917MB package includes sample applications for both DirectX 12 and Vulkan.
Using the sample apps, you can fly around the familiar Sponza palace scene or a simpler abandoned warehouse scene, while fiddling with the lighting as well as the tone mapping and various forms of upscaling. DLSS isn’t supported, unfortunately, but you can compare FSR 2.0 against native resolution rendering, FSR 1.0, or simpler upscalers using bicubic sharpening, bilinear filtering, or straight-up point sampling.
This sample package is merely a side effect of the real news today, which is that AMD has released the source code for FSR 2.0. That means that developers working on DirectX 12 or Vulkan applications can independently integrate the smart upscaler into their own software. Doing so is nontrivial, but as mentioned above, the same work applies to implementing DLSS, so it’s ultimately a win for everyone. You can find the source on Github.