Operable windows, clerestory windows, solar tubes, windcatchers, ventilation towers, green roofs, living walls, breathable materials, natural convection, stack effect, cross-ventilation, large overhangs, shading devices, reflective coatings, cool roof systems, radiant barrier systems, passive design strategies, earth-sheltered buildings, underground structures, atrium spaces, internal courtyards, tropical climate, warm sunny day, soft gentle breeze, shallow depth of field, 1/1 composition, realistic textures, ambient occlusion.