AMD has released the source code for FidelityFX Super Resolution 2 (FSR 2) under an open source license, just as it had promised to do. Developers can freely use the code under an MIT license, specifically. This is their new and more sophisticated time scaling technology, which is compatible with the Vulkan graphics APIs (the powerful open source graphics API that also came about thanks to AMD releasing the source code for their Mantle project) and DirectX 12 and it works on Linux and on a variety of GPUs from different manufacturers (not just AMD).
AMD claims that it reconstructs the finest geometric and textural details using state-of-the-art temporal algorithms, producing a anti-aliasing output from an aliased entry. It has been built from the ground up to deliver even higher performance and sharper images. It's very different from FSR 1, it's a significant advance. Developers can use both, since they are very different from each other, as appropriate.
As for the the characteristics AMD FidelityFX Super Resolution 2 are:
- Temporary: Uses the temporal data to deliver an image of similar or better quality than the native image.
- Anti-aliasing: Includes high quality anti-aliansing, replacing TAA in the game.
- High Image Quality: Significantly improved quality over FSR 1 technology at all present qualities and resolutions. Also, support for DRS or Dynamic Resolution Scaling is added.
- not machine learning: Does not require dedicated machine learning or ML hardware to function. And this allows more platforms to benefit from FR2, delivering better control, and more ability to optimize.
- Cross-platform- Accelerates FPS in games supported on AMD platforms and competitors.
More information on AMD FidelityFX Super Resolution 2 – GPUOPEN web