critical keep original geometry use the provided image as an absolute geometric reference do not modify geometry proportions step dimensions wall thickness angles or camera position generate an ultra defined 4k architectural render focused on stone realism and mass rock wall red reference area interpret the red area as a massive natural rock wall material dark to medium granite raw and structural texture must be coarse rugged and heavy with visible grain fissures micro cracks and natural imperfections no smooth or polished finish fully matte mineral tactile stairs the stairs must read as excavated directly from the rock mass each step is a solid granite slab carved from the same wall not attached or supported no joints no metal no concrete no added structure slightly chipped edges erosion marks tool cut traces strong shadow underneath each step to reinforce weight and depth blue area window exterior view the blue area is a window opening view from a high rise skyscraper distant city skyline atmospheric perspective lower part of the view includes green areas far below trees parks natural daylight entering only through this window grey area floor neutral mineral floor stone or concrete matte non reflective understated lighting single natural light source from the window light grazing the rock surface to enhance texture depth strong realistic shadows in crevices and under stairs no artificial lights no ambient fill exaggeration atmosphere monumental heavy architectural slightly dark high contrast emphasis on mass gravity and excavation camera static architectural view human eye level natural lens 24 35 mm equivalent render quality 4k resolution extreme photorealism physically based materials realistic global illumination and shadows final goal a hyper realistic architectural render where the staircase feels carved out of a single granite rock wall heavy and monumental contrasted with a distant city view through the window