Could something like this be done to allow adding dynamic foveated rendering to vorpx?
https://github.com/fholger/openvr_foveated/
Would allow for significant performance boosts for existing high end headsets as well as ones coming soon including Pico5 Pro. Which is important for vorpx as it often reduces performance currently. Theoretically could get better performance than 2d version if implemented.
For everyone else, could unlock fixed foveated rendering which can still be nice even if bigger high quality region is needed so less performance improvement.