Scale the influence of all targets

You can scale the effect of all targets on the base by editing the Envelope channel or attribute.

1. Select a blend shape deformer node.
2. Using the Attribute Editor or Channel Box, edit the Envelope channel or attribute. (See also see Edit blend shape deformer channels and attributes.)

   Though the slider Envelope only specifies values from 0 to 1, you can enter values from -2 to 2. If Envelope is 2, the influence of every target is doubled. If Envelope is 0.5, the influence of every target is halved. If Envelope is negative, the influence of every target is inverted. If the cumulative effect of the targets deforms the base more than you want, you can scale down the overall deformation effect by setting Envelope to some value between 0 and 1.