This is part one of the "Quill Pipeline" series which will show you how to prep Quill work for use in other softwares such as Maya, Unity, Unreal and Sketchfab. I'll show you the export process in Quill and the import and setup process in Sketchfab.
You can view this scene on Sketchfab here: https://sketchfab.com/3d-models/quill-fireplace-3bc6ba78ec3d4e189c7bc8cc90e577c4
Gumroad: https://gumroad.com/nickladd
