Lead Rigger at Sony Pictures Imageworks, Zhenggang Deng, who has recently released meshController, has now shared interpBlendShape. It's similar to Maya's built-in blend shapes, but adds surface UV interpolation, in-between support, and Bezier-style blending instead of the usual linear interpolation.
It supports both meshes and curves. interpBlendShape is built for high-end facial rigging and special deformation setups where you need the deformation to move smoothly across a surface while keeping the results clean, stable, and easy to control. It can also be useful for creating more graphic or 2D-style deformation effects.
The tool also comes with the interpBlendShape Editor, a dedicated UI for creating, deleting, and editing deformations, which supports real-time Maya synchronization and full undo/redo.
In the demo above, you can see some practical uses, including the UV Blend mode, curve support, and GPU-accelerated performance. You can find an example Maya file here, along with more details about the deformer.
Download interpBlendShape for Windows and Maya 2023 and higher by clicking this link.
If you're working with Maya, you might also be interested in Ehsan Bayat's Animo, a free collection of tools:
