Update 1.1 is live!

We are proud to announce that OKUnwrap got a free update to 1.1 for all our existing users!

Create Loops / Remove Loops

You are now able to hand-tweak algorithm's result in a user-friendly and quick way. Just select edges where you would like the loop to be, and press "Create Loops" button, and it will create a seam loop from every selected edge following the settings you set for the main algorithm. 
Remove will do the same thing but in reverse, and it will stop at every "split" of the seam loop.

Checkbox "Unwrap After Manual Loops" allows you to preview your changes in real time (like in the example above), however on very dense models it could be a bit slow.

Mark Sharp Edges as Seams

Since in 3D graphics it's common to place seams on every sharp edge of the model, OKUnwrap now has a toggle that explicitly marks them automatically before running the algorithm. It makes the whole process slightly faster, since it doesn't need to calculate and mark explicitly sharp edges as loops using the algorithm's logic.

As an added bonus we have optimised our internal logic, so the algorithm should work up to 10-20% faster, depending on the scenario.

Overview

OKUnwrap is a fully automatic curvature-based UV unwrapping add-on for Blender. 
It is a perfect solution for situations when manual UV unwrapping is too time consuming or impractical.
Add-on is easily scalable for batch asset processing.

This add-on aims to speed up automatic unwrapping, by producing significantly better seam layouts, and being more user friendly, especially compared to built-in solutions.

Superhive Market allows uploading 1200x600 images only, which is not high enough to clearly see the UV maps, so here are the UV showcase separately - https://imgur.com/a/dlbkScV.

Main features:

• Unwrapping quality better than built-in Blender solutions, and often better than proprietary solutions.
• Works on any geometry, even triangulated from automatic poly-reduction.
• Minimum small islands that waste space when packing and baking.
• Fully multi-threaded.
• Production-ready speed - 335k triangle testing mesh unwraps in 3.7 seconds on a 12-core 4.7 Ghz CPU.
• Windows, Linux and macOS are supported.
• Works on any Blender version since 2.8.

Installation

1. Download the add-on.
2. At the top-left corner of Blender, navigate to Edit > Preferences > Add-ons.
3. Press on the ∨ button in the top-right corner, and press "Install from Disk".
   On older Blender versions: Just press "Install from Disk"
4. Select the .zip file with the add-on.
5. (Optional) Check the box next to "OKUnwrap" list item, if not checked already.
6. Press N in your Blender viewport and locate the tab "OKUnwrap"

Licensing

For companies with revenue more than 1,000,000 USD per year, please contact us.
Our solution is made with integration and bridging in mind and is available for licensing.

For educational licenses, please contact us.

Compatibility

Windows, Linux and macOS (Apple Silicon only) versions are supported.

Versions Tested:

• 4.5.1
• 4.5.0 LTS
• 4.4.0
• 4.3.2
• 4.2.1
• 3.6.0
• 2.80.75

If you encounter issues with a particular version - please reach out, and I'll try my best to help you.

Roadmap

1. Manual tools to quickly fix errors. ✅
2. Circular UV island post-process.
3. Adjustable default values.
4. Maya support.

Thank you so much for your support! ❤️️

Special thanks to all our friends and families!

Contact email - [email protected]
Only the Python bridge add-on is licensed under GPL license. The engine of OKUnwrap is closed-source and is not under GPL.

Models used in images and videos:
https://sketchfab.com/3d-models/free-1975-porsche-911-930-turbo-8568d9d14a994b9cae59499f0dbed21e by Lionsharp Studios
https://sketchfab.com/3d-models/kawasaki-ninja-zx-6r-4af2b6840b8045a5af5e8df8a85f04fa by valvetin
https://sketchfab.com/3d-models/ducati-v4r-76701e23fbcb408dae5c892594199a52 by Jonrss
https://sketchfab.com/3d-models/bench--park-14mb-6081a54e64a94edda2c444d81e8aec2c by Mehdi Shahsavan
https://sketchfab.com/3d-models/female-noble-knight-armor-5b40c2e4b40d48378d595268d2db69bb by Meast
https://sketchfab.com/3d-models/gotti-collection-rapier-15-86a83c3cac464239a17efda2cbeb4b06 by leeeck
https://sketchfab.com/3d-models/grundig-radio-fr-250-free-am-fm-sw-a8d7fe770fcf40ba8e257f5c73d2d55b by Gherson