Additive Blendshapes 2003-11-22 - By Kevin Chu
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Hi All,
I have an interesting problem with some blendshapes. I'm trying to set up an
interface using set driven keys and blendshapes. I have an interface in the
shape of a square and a sphere in the middle of the square which I am using as
the driver in my set driven keys, to drive a series of blendshapes. Each of
the four corners of the squares represents a blendshape, and the center of the
square represents the starting shape.
So here's what I did. First I made four blendshape targets, and ended up with
4 blendshape sliders. Then I started making a driven key, setting up my
sphere in the center of the square as the driver, I then keyed all of the
blendshapes at zero when the sphere was at the center of the square. Then I
proceeded to move my sphere to the top right hand corner, and this time I
changed one blendshape slider to 1 and kept the other 3 at zero. I continued
this process for the other three corners. So theoretically, when I move my
sphere to the far corners of the square, I should have three of my four
blendshape sliders at zero and one of the sliders at 1. However, this is not
so, in fact, my results are quite strange, and I'm not sure how to solve this
problem. What I do know, is that I need to set this up so that the blendshapes
are some how additive to one another. Does anyone have any ideas?
Thanks
-Kevin
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