"Compression" is probably just poorly chosen wording. This has more to do with reducing the number of required samples in applications like eye-tracking VR, whe

"Compression" is probably just poorly chosen wording. This has more to do with reducing the number of required samples in applications like eye-tracking VR, where you can choose to render a dense image for the part that the user is looking at, while reducing detail in peripheral vision. Current implementations use some fractional resolution(s) for the periphery and blend pixels using more traditional methods, which results in blurryness and/or aliasing artifacts.