Polygon Soup - The term for an arbitrary mesh in the context of physics and collision detection. See -Polygon and -Mesh. A polygon soup is just a list of triangles and has no inherent structure, like -collision proxies or a -heightfield. This makes it less efficient to collide against, but more easy for the users and content creators as they don't have to keep a certain structure in mind. Also known as TriMesh in some physics engines.