ancient stone arch 3d model

A hyperrealistic 3D render of an ancient, weathered stone archway isolated on a clean white background. The portal is constructed from large, rough-hewn grey rocks with visible cracks, erosion, and irregular edges, covered in patches of green moss and trailing ivy vines growing naturally over the surface. The interior of the stone arch is completely open, forming a hollow passage with depth and shadow, no door or barrier inside. Three worn stone steps lead up to the base of the archway, showing age and use. Soft, natural lighting highlights the detailed textures of the stone, moss, and vines, with realistic shadows and ambient occlusion. High-fidelity, ultra-detailed 8K resolution, realistic materials, game-ready asset style, PBR workflow, neutral white studio background.