Hi, OP

Considering that you have described the process of making this through matrice mathematics and conversion from spherical coordinates to planar coordinates and mentioned that these scripts are public domain. I would like to let you know that I will push the filters into the g'mic-qt filter as I learned they're public domain. It should be seen within gmic-community@github in a day or two so that other users can access this via g'mic-qt plugin within Krita/GIMP/Paint.NET.

Thank you so much for this.