Fix Skin Double Transformations - Maya script

→robertogarcia3d.com

Description

This tool fixes one of the most common skinning issues in Maya: double transformations.

The Fix Skin Double Transformations script provides a simple UI to correct this problem automatically. The result: clean deformation, no double transform, and no more manual guesswork.

Perfect for riggers, TDs, or anyone dealing with skinClusters in complex scenes or third-party rigs.

Key Features

• Fixes Double Transforms Automatically: No need to manually connect inverse matrices.
• Works with Existing skinClusters: Doesn’t remove or touch skin weights.
• Quick Validation and Feedback: Warns if issues are found or joints are missing parents.
• User-Friendly Interface: Input the skinCluster manually or get it from the selection.
• Non-Destructive: Does not modify the geometry or joint hierarchy.
• Clean Logging: Skipped joints and operations are clearly reported.

Installation and Usage

1. Copy the ScriptPlace fix_skin_double_transform_ui.py in your Maya scripts folder or project directory.
2. Run the ScriptIn Maya’s Script Editor (Python tab), run:

   
   import fix_skin_double_transform_ui as fixskin
   fixskin.create_ui()
   
   

3. Use the Interface
   • Enter the name of the skinCluster manually
   • Or click "Get from Selection" to auto-detect it
   • Click "Fix Double Transformation" to apply the fix
   • A confirmation dialog will appear when done

Target Audience

• Riggers: Fix legacy rigs or prep clean deformation for animators.
• Technical Artists: Integrate it into cleanup pipelines.
• 3D Artists: Useful when importing third-party rigs with broken skin setups.
• Animation Teams: Save time on debugging and scene cleanup.

Additional Notes

• Compatibility: Validated in Maya 2025, may work on earlier versions.
• No external dependencies: Uses only standard maya.cmds.
• Safe to use: Always backs off from modifying geometry or weights.
• License: Educational or internal studio use. Modify as needed for production environments.
• Warning: Always save your scene before applying matrix connection changes.