Quote:
Originally Posted by Boulder
What does the "auto variance" actually mean? I've always thought that aq-mode 1 is already some kind of automatically varying mode based on qg-size.
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mode 1 is based entirely on the energy of each individual block. mode 2 is based on the energy of the block vs the energy of the frame as a whole. mode 3 is mode 2 with dark-bias, of course.
hdr-opt basically steals bits from the dark to the light, the inverse of mode 3, since that's half the point of HDR. It also does something to the chroma, but I can't make heads or tails of that.