As far as I can tell, ASTC doesn’t use BC7-style pbits. Instead it has various new tricks for encoding endpoint colors. pbits (where endpoint components share the same LSB) are quite effective if used correctly.
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ASTC’s partition patterns are ugly:https://www.google.com/amp/s/rockets2000.wordpress.com/2018/01/09/astc-partitions/amp/ …
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Many of the partition patterns for 4x4 blocks look useless for all practical purposes.
12:39 PM - 23 Oct 2018
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