photorealistic enhancement of an existing cad rendering use the provided image as a strict immutable reference maintain geometry proportions scale dimensions colors materials shadows camera angle and composition exactly 1 1 do not add remove move resize or redesign anything buildings and sun sail must remain completely unchanged in shape position and appearance the existing shadow visible in the image must be preserved exactly as is with no modification no softening and no recreation keep the plain original background grey or light blue exactly as shown with no sky replacement and no environment improve only visual realism through subtle physical light behavior clean shading realistic surface response and refined material appearance lighting bright sunny daytime neutral daylight friendly and realistic no dramatic or cinematic mood the result must look like a high quality architectural visualization technically accurate neutral and realistic not artistic or stylized explicitly forbidden trees bushes plants grass ground textures people vehicles animals sky clouds hdr environment maps added or removed objects altered geometry or proportions new changed or missing shadows background changes of any kind cinematic lighting golden hour sunset dramatic contrast artistic styles illustration painting sketch fantasy bloom glow vignette blur noise color grading no creative interpretation no design changes no environmental additions the final image must be visually identical in structure to the autodesk inventor rendering but more realistic in lighting and material response only
