A MODIFIED RADIOSITY ALGORITHM FOR INTEGRATED VISUAL AND AUDITORY RENDERING

A concept on integration of 3D visual and auditory rendering is propos ed in this paper. By the auditory rendering we mean the computer acous tical simulation with direct sound outputs that is based on the physic al model simulation. The so-called visual rendering means the computer generation of 3D images of real world and even virtual world, but wit hout sounds. By integration of 3D visual and auditory rendering we mea n while computer generates a 3D image of physical model of real world, it generates the sound based on the physical model displayed if there is a reverberation-free sound source. Based on some kinds of similari ty between the propagation nature of light and sound, a modified radio sity algorithm has been proposed for integrating implementation. The a lgorithm is suitable for both visual and room auditory rendering. It m eans for a given enclosure, once the form factors are calculated, they can be applied for calculating both the light radiosities and sound r adiosities simultaneously. The features of the algorithm are indicated . The implementation techniques are given in detail. The integration o f visual and auditory rendering is a big step toward real world simula tion, furthermore it will extend the research direction of visualizati on in scientific computing (ViSC) to visualization and audiobilization in scientific computing (VAiSC). The combination of VAiSC with virtua l reality technique will improve human-computer interface greatly.