material preservation critical all fa ade materials must remain exactly as shown in the original render preserve the original brickwork pattern colour variation and mortar joints do not smooth or replace brick textures do not convert brick into another material enhance the realism of the existing brick surface only allowed improvements to brickwork subtle micro texture enhancement natural brick colour variation between units improved mortar definition realistic shadowing between bricks natural light interaction across the brick surface the original brickwork must remain clearly visible lighting global illumination upgrade lighting realism using physically accurate behaviour natural sun direction and outdoor lighting physically accurate global illumination soft bounced light from surrounding surfaces natural shadow gradients subtle ambient occlusion in recesses balanced photographic exposure lighting should resemble professional architectural photography surface material realism enhance realism of all surfaces while preserving the existing materials add subtle physical detail micro surface imperfections slight roughness variation natural reflectivity behaviour edge shadowing and light catch removal of overly smooth cgi surfaces glass improvements realistic fresnel reflections hdr sky reflections subtle interior depth visibility natural transparency levels metal and stone improvements subtle micro reflections correct specular behaviour natural surface roughness do not change material types or colours sky environmental atmosphere improve sky realism while preserving the original lighting direction sky should appear like natural outdoor architectural photography natural sky exposure soft cloud variation realistic sky brightness gradient subtle atmospheric depth balanced contrast and color temperature avoid dramatic or stylized skies photographic finish the final image should resemble high end architectural photography rather than a 3d render enhancements may include natural light diffusion subtle environmental depth realistic shadow softness high dynamic range with balanced exposure sharp but natural image clarity no stylization no material changes no architectural redesign strictly photoreal enhancement of the original render only
