Abstract :
Light and color have been an essential ingredient in multimedia: from the first time the house lights were dimmed to draw attention to the stage to the real-time mapping of light and music to create a unique and live immersive experience; and from the symbolic uses of color to the realistic graphics of a sophisticated computer game. In computer graphics, realism is achieved by approximating the interaction of light and surfaces. Artistic uses of light to evoke or better tell a story or convey information are emulated with simulated lighting effects.