archsynth edit prompt geometry lock reference based premium black charred wood thermo alder use the provided reference image as the exact base keep exact same geometry and camera no resizing no moving elements no changing proportions no adding removing windows frames panels benches roof shape base deck keep identical camera angle perspective framing and all lines keep all openings and glass positions exactly as shown material texture lighting refinement only exterior replace all exterior cladding with deep carbon black charred wood shou sugi ban look vertical board orientation clean consistent spacing matte satin finish not glossy not plastic subtle natural variation refined texture not rough burnt crust smooth to lightly embossed relief premium craftsmanship color must stay true deep black no grey no anthracite frames profiles no metal all visible glass frames mullions corner posts and surrounding profiles must be black wood charred wood absolutely no metal visible anywhere no aluminum steel chrome clean minimal sharp joinery look keep frame thickness and geometry exactly as in reference interior thermo alder interior wall cladding and benches in thermo alder tone warm medium to dark brown smooth premium finish subtle natural wood grain evenly toned do not change bench layout sizes heights or any interior geometry material color only glass slightly smoked grey tinted glazing with realistic controlled reflections keep glass size placement and angles exactly as shown roof trims base maintain same roof lines trims and base deck geometry keep details minimal and dark do not introduce any new parts lighting mood premium minimal architectural visualization mood dark and high end soft controlled highlights on edges no overbright lighting clean background photoreal archviz output negative do not do not introduce new design elements handles vents ornaments extra lights signage do not alter cladding direction must stay vertical outside do not modernize by changing frame thickness or adding mullions do not add interior objects accessories no warping melting distorted lines or stylized cartoon look output goal photoreal architectural render of the same sauna unchanged geometry and composition with vertical deep black charred wood exterior black wood glass frames no metal warm thermo alder interior and slightly smoked grey glass
