Considering 3-lens systems were being used in telescopes over 200 years ago, id bet it takes far less computation than a single pixel in a modern game. https:/

Considering 3-lens systems were being used in telescopes over 200 years ago, id bet it takes far less computation than a single pixel in a modern game. https://en.m.wikipedia.org/wiki/Barlow_lens https://en.m.wikipedia.org/wiki/Barlow_lens https://en.wikipedia.org/wiki/Achromatic_lens https://en.wikipedia.org/wiki/Achromatic_lens