portique aluminium 3d modele

"object_name": "Portique autoportant aluminium – ouverture 6m, hauteur 4m", "prompt_3d": "A freestanding aluminum truss gantry for a live performance stage. Two vertical truss towers (square truss profile, 30×30cm cross-section) standing 6 meters apart, connected at the top by a horizontal truss beam spanning the full 6-meter opening. Total height 4 meters. Each tower rests on a heavy steel base plate with outrigger feet for stability. The truss is made of brushed aluminum tubes with triangular or square lattice bracing pattern, showing diagonal cross-members and welded joints. Industrial professional stage rigging equipment. No fabric, no lighting fixtures attached. Clean metallic silver-gray aluminum finish, slightly reflective. Photographed on a flat black stage floor, neutral background, soft overhead lighting. 3/4 angle view showing full structure, photorealistic.", "dimensions": { "width_cm": 600, "depth_cm": 30, "height_cm": 400,