[danparsonson]

You can create the same effect on a smart phone screen with a video like this: https://m.youtube.com/watch?v=CIszi2Kv_lk and a some clear plastic sheet put together like this: https://www.twowaymirrors.com/wp-content/uploads/2019/11/pep...

OP: beautiful work with your surf projector!

[paulnovacovici]

Yup! We first started very similar with a phone and testing out the illusion then moved over to a microcontroller for a little nightstand device

[deskamess]

Do you happen to have instructions on how to build the plastic sheet setup or perhaps a pointer to something that I can buy?

[danparsonson]

You can do it by cutting and folding a sheet of clear acetate or similar from a net like this: https://wp.optics.arizona.edu/oscoutreach/wp-content/uploads...

Or you could cut the four sides separately and just sellotape them together.

edit: not much help without measurements sorry - try this: https://www.holeinthewallgang.org/Customer-Content/www/CMS/f...

The required angles appear to be 54 or 126 degrees: https://data.formsbank.com/pdf_docs_html/304/3049/304991/pag...