A building in the day time(1990)
A building in the day time(1990)
A building in the evening (1990)
A building lit by direct sunlight and sky light (1990)
Changing color of the building according to the solar atlitude and the material of the walls (1990)
Changing color of the building according to the solar atlitude and the material of the walls (1990)
A building lit by the evening sun (1990)
Changing color of the building according to the solar atlitude (1990)
Earth (1) 
Earth(2) 
Beam and fog effects (1990)