Table of Contents
UVPackmaster
UVPackmaster for Blender is an incredibly powerful add-on specifically designed for efficiently arranging and packing UV islands into texture space.
Unlike traditional packing tools that simply rotate and move randomly, UVPackmaster uses complex mathematical algorithms to calculate geometry. It works like solving a super-difficult Tetris puzzle, finding a way to fill even the smallest gaps between UV pieces.
The result is a significantly increased pixel density (Texel Density), allowing your 3D model to display sharper detail without increasing the texture file size.
But what can be faster than running an algorithm on a GPU? Running it on the CPU and all GPUs in the system simultaneously! UVPackmaster will do exactly that to reduce the time needed to perform even the most advanced packing scenarios to seconds. See more Rbc Addon
Features
- Not only packing efficiency
Note that UVPackmaster does not only mean high performance – it also provides a lot of sophisticated packing functionalities not available in other UV packers. - Not only a UV packing tool
UVPackmaster 3 is a milestone that moves the tool towards more general UV applications. UVPackmaster is now not only a state-of-the-art UV packing solution – it also introduces an advanced UV aligning/stacking algorithm and other auxiliary tools, greatly simplifying your UV workflow. - All these functionalities run with engine-acceleration for maximum efficiency.
- Maximum flexibility for the most demanding users, thanks to the scriptable architecture.
UVPackmaster is not a black box anymore. We embedded Python into the newest engine release, giving you a possibility to code your own operation logic, perfectly adjusted to your own most demanding workflows. - Efficient UV Packing: UVPackmaster optimizes the arrangement of UV islands in a texture atlas to minimize wasted space, allowing for more efficient use of texture memory.
- Support for Multiple Targets: The tool can pack UVs for various target resolutions, which is particularly useful for different platforms (e.g., mobile vs. high-end gaming).
- Scalability: It offers options to scale down or up UV islands, which helps in maintaining texture quality while optimizing space.
- GPU Acceleration (CUDA & OptiX)
- This is its most valuable feature. While most packing tools only run on the CPU (single-core or multi-core), UVPackmaster leverages the power of the graphics card (GPU). With the parallel processing capabilities of thousands of CUDA cores, packing speed is boosted many times faster, allowing you to test hundreds of layout options in an instant.
- Heuristic Search Algorithm
- Instead of packing once and stopping, UVPackmaster for Blender has a continuous running mode to find a better option. You can leave the machine running while you make coffee; the algorithm will continuously test millions of different layouts and automatically update the results if it finds a more space-saving option.
- UDIM and Multi-Tile Support
- For the film VFX industry, using UDIM (multiple UV tiles for an object) is standard. UVPackmaster intelligently supports packing UVs across multiple UDIM tiles, balancing texel density between tiles, or grouping UV islands into specific clusters.
- Precise Pixel Margin
- The spacing between UV pieces (Margin/Padding) is crucial to avoid “Texture Bleeding” (colors in one area bleeding into another). UVPackmaster allows you to set this spacing in precise pixels based on the final texture resolution (e.g., exactly 4px apart at 2K resolution), something other tools often only allow vague decimal adjustments.
- Stacking and Locking
- Stacking: Automatically detects identical UV pieces (e.g., 4 wheels, 2 arms) and stacks them to save texture space.
- Locking: Allows you to lock the positions of certain important UV pieces, and the algorithm will automatically arrange the remaining pieces around those locked positions.
System requirements
- 64-bit dual-core 2Ghz CPU with SSE2 support
- 4 GB RAM
- 1280 × 768 screen
- Mouse, touchpad or pen + tablet
- Graphics card with 1 GB RAM, OpenGL 3.3
- Blender version 3.0, 3.1, 3.2, 3.3, 3.4, 3.6, 4.0, 4.1, 4.2, 4.3, 4.4, 5.0
UVPackmaster Free Download
UVPackmaster v4.0.0
UVPackmaster v3.4.4 U4
UVPackmaster v3.4.1
UVPackmaster v3.4.2 for Blender
UVPackmaster 3 Pro 3.3.2 Maya 2022-2025
Render Collection
