UV_Flatten_Tool

UV Flatten Tool is a straightforward plugin that flattens a mesh based on active UV coordinates and stores it as a shape key. While Blender's Geometry Nodes can achieve similar results, this plugin’s shape keys enable convenient follow-up operations like animation or tweaking.

Tutorial:

1. Select a mesh object with a UV map.
2. Go to the “Object” menu and click “Flatten UV to SK.”
3. In the dialog, choose:
   • “Use Existing Seams”: Use pre-marked seams.
   • “Generate Seams”: Let the plugin generate seams (older files may need copying to a new scene).
4. Confirm to flatten the UV and create a shape key.
5. Adjust the shape key value in the “Shape Keys” panel to see the effect.

Note: The plugin modifies the original model; back up your file first.