Unity Engine documentationScript ReferenceUnityEngineUnityEngine.LowLevelPhysics2DPhysicsShapePhysicsShape.SurfaceMaterial.MixingModeAverageThe average of both surface values.Read time 1 minuteLast updated a month agoDefinition Type: Field Namespace: UnityEngine.LowLevelPhysics2D Assembly: UnityEngine.Physics2DModule Average = 0