I made those models using the only true 3D Modeler available for smartphones : Spacedraw. I worked for the sole coder of this app, an AI programmer, for about 3 years . Writing lengthy bug reports and improvement suggestions. Working without any computer software was a real challenge, especially for the unwrapping that I had to do entirely by hand, more or less quad by quad, as there is nothing in Spacedraw for that.  I understood a lot about the logic of what’s behind the hood of our everyday powerful auto-unwrapping tools.

It was a lot of fun modeling those meshes and discovering the truly impressive power hidden behind Spacedraw’s text based UI. Models and textures were 100% made with only a smartphone.