Computer Daylight Simulation Systems: an Experimental Evaluation

This paper investigates Daylight Simulation Systems in computer visualization programs. Computer visualization has provided qualitative appearance in architectural presentation. There are two aspects, one objective and another subjective, that should be considered in lighting simulation. The objective aspect is concerned with accurate prediction of daylight levels. The subjective aspect is associated with the evaluation of lighting quality. The objective aspect of lighting has often been neglected by visualization designers during the process of simulation. The relevant concepts of lighting to ensure accurate simulation techniques have been defined in order to highlight and resolve the dilemma of accurate lighting visualization. The interactive relationship between material simulation and lighting simulation has also been investigated. In addition, there is a discussion to determine how realistic and artistic the current approaches on lighting simulation are for architectural design presentation. This paper has attempted to provide guidance for the future development of visualization programs and information on innovative ways to accommodate computer visualization for architectural usage and needs