Added official_art because in fact it's her official animated character showcase. Usually these things are shown during debut but in case of Polka they did not showed it and instead it was release on Twitter of Live2D rigger because ???.

Mix&Match said:

Added official_art because in fact it's her official animated character showcase. Usually these things are shown during debut but in case of Polka they did not showed it and instead it was release on Twitter of Live2D rigger because ???.

The rigs are always shown on twitter by the rigger (you can see Nene in his twitter archives, and you can also check other well-known riggers like Rarie's twitter). The motion data is made by the rigger themselves, instead of tracked, which is why it's much smoother, though unnatural.

Mileavis said:

The rigs are always shown on twitter by the rigger (you can see Nene in his twitter archives, and you can also check other well-known riggers like Rarie's twitter). The motion data is made by the rigger themselves, instead of tracked, which is why it's much smoother, though unnatural.

I know, but these things usually are shown on debut streams, too. With more in-details overview. But surprisingly not for Polka and it made a bit of confusion.