Another visual anomaly involves sporadic individual polygons that flicker, as was noticeable in the static models in Quake III Arena. This may be a form of 'depth-fighting'. There are untextured polygons in the skull, left humerus and left tibia of the skeleton (shown below).
Quake III Arena (Q3DM7): untextured polygons. SAVAGE 2000, 16-bit Z, 1600x1200.
Quake III Arena (Q3DM7): wireframe. SAVAGE 2000, 16-bit Z, 1600x1200.
The next observation concerns co-planar polygons.