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Use Only Specific Points Or Regions in BlendShapes SOP


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How do you use only a specific region or points in the Blendshapes SOP?

 

Example, I have 2 inputs:

 

1. Raised eyebrow, neutral mouth

2. Smiling mouth, neutral eyebrow

 

I'd like to use the smiling geo but add the raised eyebrow. But ONLY the raised eyebrow region as if I blend fully between them it leads to a decrease in the smile.

 

I would also need the method to be open to more than 2 shapes - imagine adding another shape that has a wink in the other eye - so it would be the smile from the first, the raised eyebrow from the second and the wink from the third.

 

I've opened the "Toon Character" but I'm lost among the maze of controls - and some things are locked so I can't go in and play around.

 

Can somebody please show me a small example of this.

 

I'd like to understand the principle behind it. So far I see some sort of delete node that then goes to the edits...

 

Do you break down the head into parts, or how is it done?

 

Thank You! :)

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Blendshapes SOP does that

just make sure your first input is the head (or full body) in neutral shape

and Differencing Parm is turned on

then all other shapes add only the difference from neutral shape, therefore will not average with each other

for cases that shapes modify the same points, the effect will be added together

blendshapes_simple_example.hip

Edited by anim
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