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# 2 01-02-2010 , 05:44 PM
EduSciVis-er
Join Date: Dec 2005
Location: Toronto
Posts: 3,374
I think the simple answer is that you'd have the full rig (with extra arm) already built, and during the animation, you'd turn on the effects of the extra part of the rig (e.g. partly with blend-shapes and weights). This sounds like a tricky project, and I can't be too specific unfortunately, but start by building the full rig and mesh, and experiment with turning on and off parts of the rig's influences. You should learn how to use blend shapes too if you're not already familiar with them before starting a challenging project like this. Hope that helps.


-stwert

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