Polygons can be double-sided or single-sided. For a single-sided polygon, only one side is renderable, and the flip side is invisible in a rendering. What property of polygon determines which side is renderable?

Autodesk Maya, commonly shortened to just Maya, is a 3D computer graphics application that runs on Windows, macOS and Linux, originally developed by Alias and currently owned and developed by Autodesk. It is used to create assets for interactive 3D applications, animated films, TV series, and visual effects.
Blender and Maya are two of the most popular 3D software applications on the market today.