I got the inspiration for this from the movie Ex Machina.the file called gradient skyis the material but it's a ZBrush mat...I'm not sure how to convert it into any other format sorry,
ZTL (Zbrush, filesize: 466 MB), OBJ (OBJ, filesize: 626 MB), MA (Autodesk Maya, filesize: 1.03 GB), STL (Stereolithography, filesize: 2.68 GB)