A node that provides a thickened polygon shape (a prism) to a [CollisionObject3D] parent. A node that provides a thickened polygon shape (a prism) to a [CollisionObject3D] parent and allows to edit it. The polygon can be concave or convex. This can give a detection shape to an [Area3D] or turn [PhysicsBody3D] into a solid object. [b]Warning:[/b] A non-uniformly scaled [CollisionShape3D] will likely not behave as expected. Make sure to keep its scale the same on all axes and adjust its shape resource instead. Length that the resulting collision extends in either direction perpendicular to its 2D polygon. If [code]true[/code], no collision will be produced. The collision margin for the generated [Shape3D]. See [member Shape3D.margin] for more details. Array of vertices which define the 2D polygon in the local XY plane. [b]Note:[/b] The returned value is a copy of the original. Methods which mutate the size or properties of the return value will not impact the original polygon. To change properties of the polygon, assign it to a temporary variable and make changes before reassigning the [code]polygon[/code] member.