>>350624974
>>350622241
>move UV to a transparent part of the mesh
>Transparency is more expensive than opaque rendering and the mesh is still there and being rendered even though it's see-through. This is less performant than shapekey method but does mean you don't need to touch blender to get it to work so japs like it. Making shapekeys isn't hard so please don't use this method it's fucking retarded.

Understandably, you're misunderstanding how Silents shader toggles work. They're not transparent at all and work with the opaque option. It doesn't make the mesh transparent and doesn't render it. It's pretty magic stuff and I don't know the details but Silent is pretty open about it if you talk to them directly.
The shader itself is performant and looks good unless you're trying to do somewhat niche things. I've tried it for an avatar and I'm not going to change all my currently used avatars to it but I certainly might for future avatars.

Toggling this way is extremely easy to set up too. You literally just select the tris you want to toggle in Blender and move their UV coordinated 1 unit to the right. Just press g, x, 1 and you're done for the toggle in the first slot. Set up the animations as normal but just toggle the shader option.