Topic on Glossary talk:Anti-aliasing (AA)

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AMD FidelityFX Super Resolution (FSR) is not an anti-aliasing method and so as of right now does not belong on this page. The PCGW staff have yet decided how to handle that feature best.

Anyone wanting to know more about what FSR is and how it functions can read AMD's documentation on it: https://gpuopen.com/fidelityfx-superresolution/

Main takeaway from it though is:

- It's a spatial upscaler -- not an anti-aliasing method -- and requires being paired with a regular anti-aliasing method such as TAA or MSAA. Otherwise the high-res images it produces would be aliased to hell, since FSR itself does not perform any form of anti-aliasing on its own.

- It works by taking the current low-resolution anti-aliased frame (anti-aliased using TAA or MSAA or other common technique) and upscales it to display resolution.

- It's composed of two passes:

a) An upscaling pass called EASU (Edge-Adaptive Spatial Upsampling) that also performs edge reconstruction.

b) A sharpening pass called RCAS (Robust Contrast-Adaptive Sharpening) that extracts pixel detail in the upscaled image.