ADVANCED ALGORITHM OF BILLBOARD TECHNIQUE AT 3 DIMENSIONAL COMPUTER GRAPHICS
Shinichi Kasahara · Journal of Environmental Engineering (Transactions of AIJ) · 2005
Objects like trees, persons, and cars are important for architectural presentation to show scale and atmosphere of the architectural space. Billboard is known as a technique to show such objects simply using Computer Graphics. This technique can effectively show such complex objects by small data size, but on the other hand, it also includes some weak points. This paper points out the weak points of the original billboard technique, and proposes advanced algorithm to solve the weak points. The new algorism that consists of four features, namely billboard of shadow, billboard of reflection, horizontally directional billboard, and vertically directional billboard, improves quality of Computer Graphics presentation for architectural scene.