If you want to have curved surfaces, you will have to subdivide them into polygons. Surfaces cannot be curved in EnergyPlus.On Wed, May 25, 2016 at 5:23 AM, Amrita Ghosh amritaghosh1986@xxxxxxxxx [EnergyPlus_Support] <EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:Hello,Can anyone tell me if it is possible to draw curved surfaces in EnergyPlus? I am trying to draw curved overhangs but there (Shading:Zone:Detailed) I can only give co-ordinates for the vertices. Please help.Thank you,Amrita Ghosh