Blend Shape

Intro

Blend between multiple Shapes with matching verb Counts.

UI

Mode - Set a blending mode:

• Replace - Each Blend Shape replaces the Shape(s) before it.
• Deltas - A delta is the difference between the original Shape and the shapes within each index of the Blend Shape's Array. Because this mode is 'additive', more than one index is required to produce a different result to Replace. For example, by adding a 'smile' to Blend Shape.0 and a 'lip curl' to Blend Shape.1, they can be blended with each other to create a wider variety of results.

Use the

Add

button to create additional indices.

• Input Shape - Connect a Shape to be blended to.
• Strength - Set the bias for each blend shape.

Verb Count

The Blend Shape requires Shapes to have a matching verb count. The Mesh Explorer can be used to check how many verbs a Shape has. See Paths for more information.

See Morph to animate between Shapes with different verb counts.

Example

1. Ensure Shape > Create Editable Primitives is checked so that any Shapes created with the tools will be Editable Shapes.
2. Hold Option/Alt and click the Ellipse tool to create a Shape (Shape1).
3. Select Shape1 and then either go Edit > Duplicate or Cmd/Ctrl + D to duplicate it (Shape2).
4. Adjust Shape2's points by using the Edit Shape tool.
5. Hide Shape2 from the Viewport by clicking the eye icon in the Scene Window.
6. Create a Blend Shape Behaviour.
7. Connect shape2.id→blendShape.0.inputShape (the first Array).
8. Set Strength to 0 on the Array.
9. Connect blendShape.id→shape1.deformers.

Scrubbing the Blend Shape's Strength will blend Shape1 to Shape2 and back.