Need help with mask

[Ricardo32416445cxy9]

Good afternoon, i would like to make a mask that is "invisible" and that cuts off a certain part of the outside of the object

[Ricardo32416445cxy9]

[Ricardo32416445cxy9]

I can't cut out the eye because it will be replaced by several of different sizes

[n. tilcheff]

Download this sample rig to see how masking of the iris can be done:

https://flash-powertools.com/edapt-rabbit-a-smr-organic-character-rig-free-download/

[kglad]

masks in animate are not visible.