- The TrianglesGroupWithTextureWall instance in SystemPrimitiveData has been replaced by an instance of the new class NamedTrianglesGroup.
- Now the TrianglesGroupWithTextureWall instances associated to a SystemMesh are created when such SystemMesh is instantiated, instead of being created when the source SystemPrimitiveData struct was created.

Now the TextureWalls associated with a SystemMesh