blend shape for a portion of a model

#1

hi
i created a character model which is a single mass, unlike a human that i can separate the face from the rest of the mesh this model is one mesh top to bottom
obviously, now if i make changes to the blendshape (eyes for example) it affects the whole model, and when the base model is in a different pose from the original pose, than the blendshape changes everything to the state that its in.
any advice on how to get past this? like a blend shape that only affects a certain part of the mesh, or a completely different approach is needed?
thanks

#2

If everything is setup correctly a blendshape only affects the parts of the mesh that are different between from the blendtarget to the main mesh.
Your problem sounds like your inputs are a bit out of order.
You need to make sure your blendshape is before your skin cluster.
Search around CGTalk for re-ordering inputs.

The other possibility is that your blendtargets had their transforms frozen.
Which can be worked with…but it is a bit annoying.

Let us know if your deformation order is all good before we delve further into your issue.

#3

^In addition to what animatedfox suggested about making sure your deformer is before your skin cluster in the channel box. You can add a blendshape and paint the area you want effected. Animation Menu > Edit Deformers > Paint Blendshape weight tool.

-Tim

#4

thanks for the replies
changing the input order does the trick
pretty simple i guess :slight_smile:

#5

This thread has been automatically closed as it remained inactive for 12 months. If you wish to continue the discussion, please create a new thread in the appropriate forum.