Reducing computation time Although in its basic form radiosity is assumed to have a quadratic increase in computation time with added geometry (surfaces and patches), this need not be the case. The radiosity problem can be rephrased as a problem of rendering a texture mapped scene. In this case, the computation time increases only linearly with the number of patches (ignoring complex issues like cache use).
Reducing computation time Although in its basic form radiosity is assumed to have a quadratic increase in computation time with added geometry (surfaces and patches) this need not be the ,case. The radiosity problem can be rephrased as a problem of rendering a texture mapped scene. In this case the computation time increases only linearly with the n,umber of patches (ignoring complex issues like cache use).