The plugin UVPackmaster version 3.4 for Blender adds a practical one‑click Auto Repacking system. This feature enables artists to apply pre‑configured packing options across multiple meshes and automatically repack only those with changes, saving time in iterative workflows.
Texel density control has finally arrived. Artists can now assign consistent texel density values (in px/m) globally or per‑UV‑island. This ensures uniform texture quality in game and real‑time workflows.
Added grouping by vertex colour offers a visual means to arrange UV islands logically. This complements new Option Sets—collections of packing settings stored within a .blend file or as standalone presets UVPackmaster.
The update expands upon prior enhancements documented in the official release notes. Version 3.4.1 introduced Auto Repacking tied to Option Sets, plus texel‑density tools and expert controls such as High‑Precision Topology Analysis. Version 3.4.2 adds vertex‑color grouping, performance improvements in island stacking, a Force Repacking toggle per‑object, and a fix for a critical Blender 2.8–2.9 issue.
System compatibility remains broad: Blender 2.83 and above on Windows 10+, glibc 2.29+ Linux, and macOS 11.3+ are supported. Pricing remains unchanged: a single‑user licence is US $44, while multi‑user Studio licences start at US $159.
UVPackmaster, first released in 2018, remains a high‑performance, GPU‑accelerated UV packing engine. It supports UDIMs, tiled and non‑square layouts, and runs on NVIDIA and (since version 3.3) Vulkan‑accelerated AMD GPUs and Macs.
Full Release Notes (Scroll down!) are here: https://uvpackmaster.com/for-blender/release-notes/
Developers and texture artists should note that new features like Auto Repacking and texel-density tools should be tested within production pipelines before deployment to ensure stability and compatibility.
