ssimulacra2 distortion map showing the combined error of AVIF and BC7 compression.

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   Ignacio Castaño🍉 (castano@mastodon.gamedev.place)'s status on Friday, 12-Jun-2026 04:58:48 JST Ignacio Castaño🍉

   I've published a repository with my ssimulacra2 implementation at:

   https://github.com/Ludicon/ic-metrics

   I use this to tune all my codecs and generate the distortion maps in https://ludicon.com/sparkjs/#Examples

   I shared this a while ago through a gist, but early versions had some bugs, so I wanted to validate it and compare it against other implementations before publishing more widely.

   The funny thing is that once you remove all the C++ crap and the jxl/hwy dependencies, the code is almost twice as fast.