Hi @Dado.
I made a plugin for that a few years back: https://ggcrunchy.github.io/corona-plugin-docs/DOCS/page_curl/api.html. It came out of this thread: https://forums.solar2d.com/t/page-curl-effect-using-graphics-2-0-and-shaders/335388.
Code is available here: https://github.com/ggcrunchy/solar2d-plugins/tree/master/pagecurl.