I have created a New Shape from Mix of a right squint of the eye, and then Mirror Shape Key(Topology) to make the Left eye, but since the mesh is not completely symmetric, is affecting vertices from the neck.
In Maya you can paint weights in the blendshapes, so you can paint some vertices of the shape in value 0, and when you apply the blendshape those vertices will not move.
Is there anything similar in Blender? Or there is any way of masking the vertices of a shape key?
Thanks so much.