UVPackmaster, initially released in 2018, is a fast and efficient UV-packing plugin capable of utilizing both Nvidia GPUs with CUDA support and the workstation's CPU. It allows for customized results based on each UV object or group and supports tiled UV layouts, including UDIM, and non-square layouts.

The primary change in UVPackmaster 3.2 is the new system for tracking UV images. This system ensures that the transformation of duplicated sets of UV images during packing replicates the transformation of the original set, as shown above.
Additionally, the plugin's user interface has been revamped in the update, making it multi-panel. Furthermore, the update introduces the ability to pack groups of UVs into the same UV space with independent texel densities.

Among other new features introduced since the release is the Stack Groups feature. When packing, it automatically stacks UV parts of the same shape on top of each other and then packs them. Additionally, the plugin is now available for Linux and macOS, in addition to Windows.

UVPackmaster 3.2 Pro is compatible with Blender 2.83 and higher, running on Windows 10 and above, glibc 2.17 and above on Linux, and macOS 10.13 and above. The cost of a new single-user license is $44, and a multi-user Studio license costs $159.