7.2. Radiosity Applications   

The major advantages of the radiosity method over ray tracing is - it generates the view independent solution as it precalculates the radiation transfer between surfaces of an environment [Wallace,92]. Because of this, a user can change to another view and render a new image in real-time by using the same precalculated shading intensity values. Therefore, the radiosity method offers a powerful capability that the ray tracing technique cannot - interactive walk throughs of the environment.

Since radiosity is dealing with diffuse reflectors in enclosures, the method works best for man-made environments such as architectural designs, interiors of offices, factories and lighting designs. In the field of architecture, the ability to produce a photo-realistic non-existing scene opens up the possibilities for presentation of the designs. The client can explore a realistic computer model to learn the plan, elevations and building structures. Clients can also gain a sense of what it will be like to walk through a newly constructed building [Wallace,92][Cohen,93].

Radiosity can be a useful tool for light designers and theatrical lighting designers since it accurately simulates global illumination. For lighting designs, designers often rely on tables and simple formulae in deciding how many fixtures to use, what sort of lights are suitable and where to position them. With the help of an accurate global illumination system, a three dimensional model may be constructed and lit. Designers can then "see" what the final product will be like.