Installation:

Open up Blender and go to Edit > Preferences > Add-ons, click on install then browse to the zip file and click on Install Add-on from File….

Make sure the addon is enabled in the Add-ons panel.

Install only one version, if you attempt to enable multiple versions at the same time, it will cause problems. If you have done this and cannot install: delete all versions of the RizomUV Bridge from your Blender addons, then install the latest version.

Compatibility

• 'RizomUV Bridge - Ultimate Edition' is compatible with Blender 3.3+, Rizom 2022.2+, Windows, MacOS.
• Legacy versions are available for earlier versions of Blender/Rizom.

The addon works by using the RizomUVLink which is a module provided by Rizom-Lab, this allows direct communication with RizomUV, it has the following requirements:

• Windows only
• Rizom 2023+

The addon will automatically detect if you are able to use the RizomUVLink based on your selected Rizom version and operating system, If you are not on a compatible system the RizomUVLink will be disabled and the addon will default to the backup method which doesn't require the link.

The backup methods for MacOS and older Rizom versions can handle UV export/import but lacks the preset scripts and remote control options that the RizomUVLink enables.

Usage:

The addon UI can be found on the sidebar of the 3D Viewport under a tab called RizomUV, the default hotkey to show the sidebar is N. Please note that the RizomUV tab will only appear when you are in object mode.

Using the addon is very simple. Enter object mode and select the objects you wish to export to Rizom then click the Export button, Rizom will open with your objects already loaded. If you selected an autoseams script it will be applied to the active UV map. The Rizom settings will also be changed to match how you set them in the bridge UI.

Once you are done creating your UV maps save your file with CTRL+S, then return to Blender. Click the Import button and your UV maps will be transferred to your objects. The bridge uses the names of the objects and UV maps to determine where to transfer the UVs so it is important that you do not rename them before importing.

Every element of the addon UI has a tooltip so if you don’t know what something does just hover your mouse cursor over it.

Changelog - Ultimate Edition

1.0 - 22nd May 2024

New

• All in one support for Blender 3.3+, Rizom 2022+, Windows, MacOS.
• Optional toggle of RizomUVLink which is automatically disabled on unsupported installations.
• Option to export seams defined in Blender to RizomUV. (RizomUVLink only)
• Option to export texture file and automatically set correct shading. (RizomUVLink only)

Fixes

• Moved data directory to user AppData for Windows, this should allow the addon to function on Windows Store installations of Blender without any additional user configuration.
• Fixed bug with incorrect management of Machin3 Tools focus mode when exporting files.
• Fixed transforms not exporting correctly.

1.0.1 - 26th May 2024

Fixes

• "Apply All To All UVMaps" and "Reset UVs" causes error when used together.

1.0.2 - 13th June 2024

Fixes

• Export not working on MacOS.

1.0.3 - 22nd June 2024

Fixes

• Update bundled RizomUVLink version to latest.

1.0.4 - 6th August 2024

Fixes

• Fixed encoding error with some system languages.
• Switched to more reliable method of checking for RizomUV connection on MacOS.

1.0.5 - 19th August 2024

Fixes

• Fixed problem with Machine3 tools focus mode being undone upon import.

1.1.0 - 6th September 2024

Fixes

• Moved data directory to Documents so that Windows Store installations don't have blocked write permissions.

New

• Replaced "Validate UVSets" with "Edit Names", less destructive and can also be used as more of a utility tool to rename UV Maps.
• Added support for USD file format.

1.1.1 - 29th September 2024

Fixes

• Fix transformations being messed up under some child/parent hierarchies. (Fixes speedtree exported meshes)

1.1.2 - 1st October 2024

Fixes

•  Fixed some parent/child hierarchies not keeping transformations
•  Fix USD export for Blender 4.2 (disable rename UV Maps)

1.1.3 - 13th November 2024

New

• RizomUV metadata exported when file is saved, can be reloaded in Rizom using the "Load" operator (export will overwrite).

1.2.0 - 24th November 2024

New

• USD format can now transfer RizomUV attributes such as groups and pins. These will automatically be imported to Blender and saved on your objects. The objects can then be re-exported to RizomUV, and the attributes will persist.

Fixes

• Fixed problems with USD format import caused by Blender USD import renaming imported objects based on mesh data name. The mesh data is now renamed inside the USD file itself. Actual data in Blender is not affected; this is only visible in the file itself and in RizomUV.