Hi,
Is there a way to animate a rag as if a rat is moving under or a cheek chewing?
You can see what I am after here: reference video
It’s in C4D but wondering if there is a Maya equivalent.
Of course, the collision method is more accurate but it’s just a bit heavy to calculate.
Thank you for looking at the problem.
I wrote some ideas about this.
Soft mods and lattices let you slide a deformer space across geo, or geo through a deformer space. Same with non-linear deformers like sine and wave.
You might want to use a lattice, since you can model the shape more precisely, or deform it, so it looks like the lump is moving.
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Here is a quick example. I put 1 bulge blendshape on a lattice.
Then 3 more random noise blendshapes, which are animated randomly. Or rig a few controls.

Then move that lattice along your geo. You have to move the lattice and baseLattice at the same time, otherwise, it will move the geometry, instead of sliding.

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@clesage
The soft mod and the (make shift) lattice deformer seems like a good approach. Thanks for the suggestion.
Have a great day ahead!