Multiline Closed Path Polygons

Hello,

Please pardon my clumsy use of verbiage here...

I will probably default to the RectangleVisual3D, initially, but I'd like to know whether there is something like a closed-path LinesVisual3D. Could work its way out in 3D, in my case it would be along a 2D plane.

Basically I'd like to render things like triangles, trapezoids, etc. Then be able to potentially specify things like line issues (i.e. brush), and fill.

Thank you...