Multi Delta Mush helps Blender artists improve character deformation without building a maze of corrective shape keys, drivers, and rig logic.

Instead of adding more complexity to your character rig, you train the deformer from pose examples. Provide a bind mesh and corrective sample meshes with matching topology, then Multi Delta Mush learns how those corrections should blend across the character during animation.

The add-on creates a separate output mesh, so your original source rig stays untouched. This makes it useful for testing deformation improvements, building cleaner character pipelines, and reducing the need for heavy corrective setups directly inside the rig.

Key features:

• Example-trained character deformation workflow
• Helps reduce complex corrective shape key and driver setups
• Live output mesh updates while posing or scrubbing animation
• Envelope, mask, relax, and stack iteration controls
• Compiled C++ deformation core for performance
• CPU backend included, with optional OpenCL acceleration

Compatibility:

This first release supports Windows x64 and Blender 5.1.x. Source, bind, and corrective sample meshes must share the same vertex count and vertex order.

Multi Delta Mush is designed for character artists, riggers, and technical animators who want cleaner deformation results without turning every problem pose into another layer of rig complexity.