This is not technically correct as best as I can ascertain. When we think about AA, it is a representation of sub pixel occlusion. As such, using uniform trist

This is not technically correct as best as I can ascertain. When we think about AA, it is a representation of sub pixel occlusion. As such, using uniform tristimulus to sample the “in between” value is incorrect. There is simply no “correct” approach because there are no known models that properly model visual cognition. What we can say though, is that the intermediate subpixel should not sample RGB tristimulus, but a loose nonuniform representation that approximates the lower order visual signal representation. When discarding signal, RGB tristimulus is more “correct”. When interpolating the signal, approximate lightness is more “correct”. Some solid analysis is available here: https://hhoppe.com/filtering.pdf https://hhoppe.com/filtering.pdf