PC GPUs use “BCn” texture compression formats (see “Understanding BCn Texture Compression Formats” by Nathan Reed or “Texture Block Compression in Direct3D 11” by Microsoft). While most of the interest is in developing BCn compressors (see “Texture Compression in 2020” post), I decided to look into various available BCn decompressors. Why would you want that? After all, isn’t that done by the GPU, magically and efficiently? Normally, yes. Except if for “some reason” you ...
