strict material and lighting transfer only the archicad image is the sole base image preserve its geometry and projection exactly every architectural edge silhouette opening level object position and perspective line must remain in its original image position use the reference rendering only as a sample of 1 surface materials color texture roughness and reflectivity 2 lighting sunlight direction softness color temperature and exposure do not use the reference rendering for composition architecture dimensions shapes proportions landscaping layout or object placement do not blend the two images or reconstruct the reference scene apply the sampled surface properties to the existing archicad surfaces illuminate the existing archicad geometry with the reference lighting recalculate shadows from the archicad geometry do not copy shadow shapes from the reference no geometry changes no replacement objects no added or removed elements no camera changes no changes to stairs ramps walls railings roofs windows or floor levels the result must align exactly with the archicad image when overlaid only surface appearance lighting shadows and reflections may differ
