The model is assembled for subdivision. When using import formats, please apply MeshSmoth/TurboSmoth with 2-3 iterations.http://www.stephaneparmentier.com/contenus/design/stephane-parmentier/luminaires-cointrin/pagemulti.asp?Position=0313010000&lang=enhttps://studiotwentyseven.com/lighting/cointrin-pendant-lamp-by-stephane-parmentier/