sci-fi corridor 3d model

Sci-fi industrial modular corridor segment. Octagonal cross-section tunnel open at both ends. Interior: padded quilted foam panels on lower 6 wall faces, exposed heavy metal structural ribs spanning ceiling, single recessed fluorescent strip light centered on ceiling running full length, metal grating floor with visible pipe infrastructure underneath, cable conduit bundle running along upper wall-ceiling junction both sides. Exterior: heavy gauge brushed metal panels, bolted seams, pipe conduits running length. Proportions: wider than tall, clean octagonal openings at both ends flush and perpendicular. Worn industrial finish, rust staining on exterior, retro-futurist aesthetic, Alien Isolation visual style, game-ready hard surface model, no loose geometry