So GPU texture formats are in-memory formats that must support quick random access to any texel position. This typically means that the texture is divided into blocks of fixed dimensions and bit size which can be decoded independently.<p>IIUC, the article is asking for a companion on-disk format for distribution that takes advantage of things the in-memory format can&#x27;t, like variable bitrate and interblock redundancies, while still being quickly transcodable to the in-memory format.