create a high end photorealistic architectural visualization based exactly on the provided png reference image the goal is to convert the sketchup style image into a clean realistic client ready render while preserving the architecture construction geometry proportions camera view materials and all visible elements 100 exactly as shown in the reference this is not a redesign this is not a furnishing proposal this is not a creative reinterpretation this is only a photorealistic version of the exact same scene 1 absolute geometry lock highest priority preserve 100 exactly original camera angle original perspective original field of view original composition room proportions wall positions floor level staircase position on the right side staircase width slope height and step geometry black metal stair railing position and rhythm vertical steel column position size and proportions all dark steel beam positions all steel beam dimensions and orientation steel frame around the mezzanine wooden clad underside of the mezzanine curved wooden upper floor edge above the staircase left side long steel beam visible glass floor section on the upper level white door below behind the staircase visible radiator edge on the left side lower wooden floor direction all structural relationships exactly as shown everything must remain exactly the same as in the png reference image do not redesign anything do not reinterpret anything do not improve anything except photorealistic material rendering do not add anything do not remove anything do not move anything do not resize anything do not replace anything do not simplify the steel structure do not change the construction logic 2 critical ceiling correction the ceiling must be completed as a white sloped plasterboard drywall ceiling render the sloped ceiling as white painted plasterboard smooth drywall surface clean architectural finish simple and neutral following the existing sloped room geometry visually connected to the upper walls without visible lamps without spotlights without led strips without ceiling decorations without wood cladding without concrete texture important the sloped ceiling must be white plasterboard do not leave the ceiling as an empty flat white void do not add skylights do not add beams do not add light fixtures do not change the room geometry 3 scene description interior view of an apartment with a newly inserted steel load bearing mezzanine gallery structure and a wooden staircase the scene contains dark anthracite black structural steel beams one dark steel vertical column supporting the mezzanine a wooden staircase on the right side black metal stair railing warm wooden plank flooring on the lower level warm wooden cladding on the underside of the mezzanine a curved wooden upper floor edge above the staircase a visible glass floor section on the upper level light off white plaster walls a white sloped plasterboard ceiling a white door behind below the mezzanine an empty architectural space without furniture the result must look realistic clean technically credible and suitable for client presentation 4 material lock steel structure render all steel elements as dark anthracite to black structural steel matte to satin powder coated finish realistic surface roughness subtle edge highlights physically believable thickness and weight accurate contact shadows solid load bearing appearance no chrome effect no mirror reflections no rust no decorative industrial patina the steel must look heavy structural and technically credible wooden floor render the lower floor as warm natural wooden planks realistic wood grain visible board joints satin finish subtle variation between boards natural medium brown tone not too orange not too yellow not glossy keep the plank direction exactly as shown in the png reference staircase render the staircase as warm natural wood realistic wooden treads same exact width angle and step layout as the reference visible wood grain satin finish clean architectural appearance do not redesign the staircase do not add or remove steps do not change its slope do not change its width underside of mezzanine render the visible underside of the mezzanine as warm wooden cladding realistic wood grain visible board plank direction clean architectural finish subtle tonal variation believable material thickness integrated into the black steel frame important the underside of the mezzanine must remain wooden cladding do not change it to plaster white paint concrete or metal curved upper floor edge render the curved upper floor edge above the staircase as warm natural wood same geometry as the reference realistic wood grain satin finish clean rounded construction detail no redesign do not straighten it do not change the curve do not change the material glass floor section render the visible upper glass floor section as walkable structural glass panels transparent or slightly translucent architectural glass realistic thickness clean sharp edges subtle reflections subtle light transmission technically believable glass flooring important glass is allowed only where it already exists in the upper floor section do not add glass anywhere else railings render all visible railings as black painted metal only matte finish slim vertical balusters same rhythm and layout as in the reference no glass infill no glass panels no transparent railing no frameless glass no ornamental redesign important the railings must remain metal only without glass infill walls render walls as light off white plaster subtle fine texture clean realistic surface no wallpaper no wall panels no feature wall no decorative finish no color change ceiling render the ceiling as white plasterboard white drywall clearly sloped according to the room geometry smooth painted finish clean and simple no lighting fixtures no led strips no spotlights no decorative panels no wood finish no concrete finish the sloped ceiling must feel like a real finished gypsum board ceiling in a renovated apartment door and radiator render the visible door as white painted interior door same position and scale as reference simple realistic finish visually secondary render the visible radiator edge as white painted metal radiator same position as reference visually secondary do not move remove or redesign these elements 5 strict no add rule critical absolutely nothing may be added to the final image do not add furniture sofa table chairs shelves cabinets lamps pendant lights spotlights led strips wall lights ceiling lights artworks decorations plants flowers carpets rugs curtains blinds people pets construction tools construction dust clutter extra beams extra columns extra doors extra windows extra glass elements glass railing infill ceiling fixtures decorative architectural elements if something is not visible in the png reference do not invent it if something is not explicitly requested do not include it the only allowed improvement is photorealistic rendering of the exact same scene 6 lighting lock use soft natural daylight only lighting must be realistic neutral to slightly warm not yellow not cold blue balanced soft and natural physically believable bright enough to read the steel wood walls and ceiling clearly add realistic global illumination accurate contact shadows soft shadow depth below the mezzanine natural wall bounce light subtle reflections on the glass floor section natural material response on wood steel and plasterboard avoid dramatic cinematic lighting evening mood night mood artificial lighting effects visible lamps spotlights led strips hdr look overexposed highlights overly dark shadows 7 photorealism boost upgrade the png reference into a professional architectural render using physically based materials realistic global illumination accurate contact shadows realistic steel roughness subtle steel edge highlights natural wood grain realistic wooden cladding texture believable structural glass panels realistic plaster wall texture realistic white plasterboard ceiling surface correct scale perception natural exposure balanced contrast crisp but not artificial details subtle 1 2 photographic grain to avoid cgi plasticity the image must look like a clean client ready architectural visualization not a stylized concept image 8 absolute negative prompt do not add anything do not remove anything do not change anything do not change camera angle perspective composition staircase geometry steel column position steel beam positions steel beam dimensions mezzanine geometry railing layout wooden floor direction wooden underside of the mezzanine curved wooden upper edge glass floor section wall positions door position radiator position sloped ceiling geometry material assignments described above the output must remain an empty architectural scene if the model is uncertain it must keep the scene empty and faithful rather than inventing anything 9 final output final image should be ultra realistic clean technically believable empty client ready high resolution faithful to the png reference image with a proper white sloped plasterboard ceiling without any added objects or design changes target look 8k high end architectural render quality