Mini Blend Deformer

Blends the points of the filtered geometry towards one or more target shapes, like Maya’s blendShape.

For each target, the deformer adds weight * ( target - base ) to the points of the filtered geometry. The sum is multiplied by the envelope and the optional per point mask.

Plug Description
Envelope Overall strength. 0 leaves the geometry untouched.
Base Location Location of the geometry the targets were modelled from. Leave empty to measure target offsets from the points being deformed.
Mask PrimVar Optional float vertex primitive variable which scales the deformation per point, like painted blendShape weights.
Targets Add targets with the + button, remove them from the right click menu. Each has an Enabled toggle, a Location and a Weight.
  • The geometry and every target must have the same number of points in the same order, otherwise the node errors.
  • Weights are not clamped, so values below 0 or above 1 extrapolate, as in Maya.
  • Multiple targets are summed, so blending two targets at 0.5 each is the average of their offsets, not their mix.
  • Animate the weights to drive facial shapes or corrective shapes.

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