ketchfab.com/stefan.lengyel1)
           * https://sketchfab.com/3d-models/medieval-fantasy-book-06d5a80a04fc4c5ab552759e9a97d91a
           * Attribution 4.0 International (CC BY 4.0)
           */
          const book = this.load.preload('book', '/assets/glb/book_mod.glb')

          /**
           * box_man.glb by Jan BlÃ¡ha
           * https://github.com/swift502/Sketchbook
           * CC-0 license 2018
           */
          const man = this.load.preload('man', '/assets/glb/box_man.glb')

        