See:
Co-owner of Binomial LLC, working on GPU texture interchange. Open source developer, graphics programmer, former video game developer. Worked previously at SpaceX (Starlink), Valve, Ensemble Studios (Microsoft), DICE Canada.
Wednesday, March 4, 2026
Updated: "ASTC GPU Texture Decoding: Software Decoders, Spec Issues, and ARM Errata"
ASTC's complexity has created an ecosystem where correctness is an ongoing research problem rather than a fully solved one. See:
https://github.com/BinomialLLC/basis_universal/wiki/List-of-Available-Software-ASTC-Decoders
Sunday, March 1, 2026
.ASTC (the File Format): No Longer a Black Box
The basisu command line tool has a new option, -peek, which opens any standard ARM LDR/HDR .ASTC texture file, unpacks each block, and computes a bunch of statistics about the exact ASTC configurations the blocks used.
This is how we found out that Intel's ispc_texcomp's ASTC encoder is, for all practical purposes, broken.