Ultra-detailed 3D model of a Stargate-inspired portal, crafted in ancient stone. Circular structure with deeply carved Egyptian hieroglyphs along the inner and outer rings. Surface shows realistic stone grain, erosion, and chipped edges. Inner ring features engraved glyphs glowing faintly with blue or gold light. Symbols are weathered but legible. Portal interior is inactive or shimmering with energy. 8K PBR textures for stone, emissive runes, and dust. Clean UVs, watertight mesh. Ideal as a high-fidelity prop for sci-fi or ancient alien scenes. Cinematic lighting with soft ambient glow and shadows.