Hi there,  If you load an obj with the flag OPTIMIZE_WITH_UV=true then recompute the normals, you lose the smoothing. playground: (switch line 14 from true to false hehe) http://www.babylonjs-playground.com/#1U5GPV#50 Right now I have to pick between broken texture (flag set to false) or broken normals (flag set to true)   any ideas?   Thanks