[minimaxir]

That's likely the GANSpace/SeFa part of the manipulation.

> In a further test we created two example cinemagraphs that mimic small-scale head movement and facial animation in FFHQ. The geometric head motion was generated as a random latent space walk along hand-picked directions from GANSpace [24] and SeFa [50]. The changes in expression were realized by applying the “global directions” method of StyleCLIP [45], using the prompts “angry face”, “laughing face”, “kissing face”, “sad face”, “singing face”, and “surprised face”. The differences between StyleGAN2 and Alias-Free GAN are again very prominent, with the former displaying jarring sticking of facial hair and skin texture, even under subtle movements