UASTC (Universal ASTC) is a subset of ASTC speficiedspecified by Binomial. The format is used in their Basis Universal "[[texture supercompression|supercompressed]]" GPU texture format, which adds extra compression over compressed texture formats such as UASTC and [[ETC1|ETC1S]] and allows for efficient conversion from UASTC/ETC1S to compressed texture formats directly usable by GPUs.<ref>{{cite web |title=UASTC Texture Specification |url=https://github.com/BinomialLLC/basis_universal/wiki/UASTC-Texture-Specification |website=GitHub |language=en}}</ref> UASTC, as part of Basis Universal, is part of the KTX (Khronos Texture) file format.<ref>{{cite web |title=KTX - GPU Texture Container Format |url=https://www.khronos.org/ktx/ |website=The Khronos Group |language=en |date=16 April 2021}}</ref>