Stellarum Fixarum Hemisphaerium - Game-Ready

A rework of [Thomas Flynn's](https://sketchfab.com/3d-models/stellarum-fixarum-hemisphaerium-4ed1c284ae05448cb5131c20286301d9) celestial globe, using textures originally from the British Library [King's Topographical Collection](https://www.flickr.com/photos/britishlibrary/albums/72157716220271206). I did some quick edits to the model by way of a un-subdivide and many more lengthy edits to the textures, mainly darkening the fine lines, which would otherwise vanish at low resolutions or high mipmap levels and cleaning jpeg artifacts with the [BCGone Detailed ESRGAN model by Mutin Choler](https://drive.google.com/drive/folders/1pnyPklpLPtMAHeNC5NVU1mV_Qh61wWnx) (at the cost of losing the dotted lines of the source). Includes 4/2k diffuse/normal/rough/specular maps Source: Objaverse 1.0 / Sketchfab