Shadow to Vertex Map

Hi
Is there a way to transmit shadow information from a light source to vertex map? Phyton or expresso?
Like in this plugin:
https://cinemaplugins.com/c4d-plugins/topology-vertex-maps/
But this plugin is unsuported in cinema 4d 2023.

I need this to create shader inside Octan.

I tried this method:
https://www.cineversity.com/forums/viewthread/2374/
but it’s not working as I expected. It illuminates the entire object if it’s in the light range.
Thank you for your help.
Michal