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A script that will split a symmetrical blend target into a smoothly blending left/right, up/down (whatever/whatever) pair. Useful for splitting (for example) a symmetrical smile into individual left and right smiles.
v1.1 -- fixed non origin weighting, and random 6.0 issues; redesigned interface v1.2 -- mesh creation is much faster v1.2.1 -- removed three lines of code that produced the occasional unreliable result. Stuck the fork in it. It's done. v1.3 -- pulled fork out, added ability to specify left and right naming prefixes v1.4 -- fixed placement of result meshes. Existing result meshes are now updated instead of being replaced (so you can now tweak your original symmetrical mesh and the script will modify your blendshape targets).
v1.4.1 -- Removed an optimization that resulted in incorrect weighting in Maya 7.