[Bf-committers] Proposal for better integration of shape keys

Michael Fox mfoxdogg at gmail.com
Tue Feb 26 11:30:32 CET 2013

to do this you use vertex groups, and the mirror modifier already 
mirrors vertex groups .L->.R

On 26/02/13 21:10, Tobias Oelgarte wrote:
> Hello,
> I'm currently working on a face rig and i wanted to use shape keys for
> the details. But i encountered the problem that i would need to apply
> the mirror modifier. If i don't, then i have no way to create left or
> right sided shape keys, because every shape key will always affect the
> left and right side of the resulting mesh. (in the stack the shapekeys
> are applied first to the mesh, the mirroring happens afterwards)
> But if i apply the mirror modifier then i have other problems. At first
> i have to define left and right sided shapekeys. This is a lot of extra
> work. The second point is if i have to make some corrections to the
> geometry later on. Grabbing a vertice is no problem (x-mirror), but
> deleting and creating new faces in a mirrored fashion is a problem that
> x-mirror does no solve.
> So i was thinking on how this could be avoided. I came up with the idea
> that shape keys should recognize that a mirror-modifier is the first
> modifier. If it is set to x-mirroring, then the mirror modifier should
> be applied first and the shape keys later on, while automatically
> influencing the left and right side with two influence sliders. This has
> multiple advantages:
> 1. no need to give up the mirror-modifier
> 2. shape keys only need to be created on one side
> A simple mockup would look like this (left current, right proposed):
> http://www.pasteall.org/pic/show.php?id=46086
> Greetings from
> Tobias Oelgarte
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