OK try this

This picture shows a modular room with four (identical) wall parts and four (identical) doorway parts, and a typical configuration (showing only one doorway and one wall). Note that the ceiling is invisible viewed from above (allowing third person play).
This is a trivial example of a room design and its polygon count reflects this.

This picture shows a modular room with four (identical) wall parts and four (identical) doorway parts, and a typical configuration (showing only one doorway and one wall). Note that the ceiling is invisible viewed from above (allowing third person play).
This is a trivial example of a room design and its polygon count reflects this.