Modeling
N-gon
Polygon with 5+ sides
Definition
An n-gon is a polygon with five or more sides, generally avoided in production meshes. N-gons triangulate unpredictably (the engine chooses which diagonals to use), can cause shading artefacts, and break edge-loop flow needed for animation. Some n-gons are acceptable in flat, undeformed areas of hard-surface props; never in deforming character geometry.
