This 3D model was originally created with Sketchup 7 and then converted to all other 3D formats. Native format is .skp 3dsmax scene is 3ds Max 2016 version, rendered with Vray 3.00 source : http://wallpaperology.com/3-Creative-Wallpaper/44-Building-wallpaper/3357-Architecture-Glass-Building-Wallpaper.htm