Pack your UV maps with maximum efficiency
Using the CPU and all GPUs in the system simultaneously!
UVPackmaster is the most efficient UV packer out there in terms of packing on CPU, but it also provides a Cuda-accelerated variant of the algorithm. When running on a GPU, it significantly outperforms all other packers available.

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.

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. Visit our site for more information.

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. 

General improvements:

Linux support. For more info regarding Linux-specific requirements visit the documentation.
New packing mode: Groups Independently – useful when you want to process many UVs in a batch. Read this page to learn more.
New parameter in the Pixel Margin subpanel: Extra Margin To Others – specifies an additional pixel margin between islands being packed and the other islands (unselected islands when using the Pack To Others mode). In result the final margin between these islands will be calculated using the formula: Pixel Margin + Extra Margin To Others. When using the Groups To Tiles mode and packing two groups into the same UV space, the islands from the other group are also treated as Others. It means that the Extra Margin To Others parameter will also be taken into account when calculating the margin between islands belonging to different groups.
ExtraMarginToOthers
Reimplement the operation to select/deselect all islands in the active box:

New addon general option: Box Border Width – determines the width of box borders rendered in the UV editor during the operation.
New addon general option: Append Mode To Operator Name – this option should only be enabled temporarily, only for the time when you want to add an UVPackmaster operator to Quick Favorites. If you add an operator with this option enabled, the selected mode name will be permanently appended to the operator name in the Quick Favorites list. After the operator was added, you can disable this option immediately.
You will find the general addon options when you expand the engine status panel (the top-most panel):

UVPackmaster v3.3.3 Update log:

General improvements:

Support for a new packing paradigm Fixed Scale (Max Margin): packing with a fixed scale while searching for the maximum margin between islands:

The new mode can be selected using a new option Scale Mode (which replaces the old Fixed Scale option). It can be set to one of 3 values:

Max Scale (default):
equivalent to Fixed Scale set to off in older versions
Fixed Scale:
equivalent to Fixed Scale set to on in older versions
Fixed Scale (Max Margin):
the new mode as presented above.
Ability to set the Scale Mode setting on a per-group basis in the Groups To Tiles mode using the overrides panel for a group:

Improvements for how the packing result is applied to the UV map when packing groups: starting from this version, the packer doesn’t wait for applying a result for a group until all groups are packed: instead it applies the result for a group immediately.

Fix for the Apply Grouping To Scheme operation. 

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