So, there is a thing I saw a few times but i can't find it now. Basicaly it's decimation running active on an animation. It produces an intresting effect, and I can't find any examples of it. So maybe you have seen it or even done it? [Sorry for poor english]
Are you maybe thinking of DirectX11 tessellation? [ame=" https://www.youtube.com/watch?v=bkKtY2G3FbU"]Hardware tessellation with DirectX 11 (Unigine "Heaven" benchmark) - YouTube[/ame]