material enhancement only geometry and layout fully locked perform ultra realistic material and surface refinement on the existing 3d scene preserve exactly the original geometry volumes proportions camera position camera angle field of view perspective scale and layout no structural or geometric changes of any kind material improvements only physically based rendering pbr materials high resolution albedo normal roughness and ambient occlusion maps stone walls with realistic color variation mortar depth surface wear and age patina ground material with layered soil realism earth dust gravel micro detail and natural irregularity broken marble slabs upper level use exactly the same number size and placement of marble fragments as in the original image improve realism only through material quality accurate marble surface properties subtle translucency worn edges micro scratches chipped corners dirt staining and natural discoloration no additional marble fragments no duplication no new debris lighting shadows correction maintain original lighting direction and overall illumination correct shadow behavior to match the sloped terrain remove the incorrect shadow cast to the left by the building shadows must appear physically consistent with terrain inclination no dramatic or cinematic lighting changes no new elements no removals no redesign no artistic reinterpretation goal photorealistic material realism with physically correct shadows while the scene remains geometrically identical to the input
