Unlike Disney animation, BFDI uses hard cuts between mouth shapes rather than smooth morphs. Do not use shape tweens between mouth shapes; it looks glitchy. Use swapping.
“If I take the corrupt mouth,” Four said slowly, “it won’t know what face to make. It’ll just… feel.” bfdi mouth asset
"Let me out. I am tired of being a ‘wry smirk.’ I want to be a scream ." Unlike Disney animation, BFDI uses hard cuts between