The internal light transmission between the punch plate of the building surface and the main body of the building is realized by linear uplights projection lamps. When the top of the building is reached, the density of the punch plate changes accordingly, making it more opaque, but the coincidental floodlights make up for the top of the building to be emphasized in another form of light. Different from the appearance of the building's facade, rendered color is applied to to the atrium. By using these lamps we can realize dynamic and color changes according to the settings of the program.