API Reference > geometry-core > Polyface > Polyface > twoSided twoSided Accessor Flag indicating if the mesh display must assume both sides are visible. twoSided: boolean Returns - boolean Setter Flag indicating if the mesh display must assume both sides are visible. twoSided(value: boolean): void Parameter Type Description value boolean Returns - void Defined in polyface/Polyface.ts Line 50 Last Updated: 29 November, 2022