Smooth Shape Keys *FREE*

Smooth Shapekey – Blender Addon (4.5+)

Create clean, polished shape keys with just one click.

Smooth Shapekey is a Blender addon designed to enhance your shape key workflow by applying a Corrective Smooth modifier directly to your active shape key. It duplicates the shape key, smooths it using your custom settings, and neatly places it underneath the original, all non-destructively.

Features:

• Apply Corrective Smooth to any shape key with value set to 1.0
• Keep original shape key safely renamed as OLD_<name>
• Cleanly insert the smoothed key just below the original
• Adjustable smoothing strength via a slider (0.0 - 1.0)
• Optional vertex group selection for targeted smoothing
• One-click Reset button to undo smoothing and restore the original

Perfect for:

• Character facial expressions
• Stylized deformation cleanup
• Mesh correction workflows for animations

Latest Update v1.1:

• Batch Mode for VRChat's Visemes + ARKit
• New "Cleanup" button to clear OLD_<name> backups
• Minor bug fixes + performance polish

Installation Instructions:

1. Open Blender
2. Go to Edit > Preferences > Add-ons > Install…
3. Select the downloaded file: smooth_shapekey_addon_Maxwilso.py
4. Enable the addon by checking the box.
5. In the 3D Viewport, press N to open the side panel and find the tab "Smooth Shapekey".
6. Select an object with shape keys, set a shape key’s value to 1.0, and press "Smooth Active Shapekey".
7. Use the "Reset Smooth Shapekey" button to undo.