Baranoski, Gladimir V. Guimaraes2014-10-212014-10-2119921467-8659https://doi.org/10.1111/1467-8659.1130193The parametric differential method calculates the form factors without using approximations by polygons. Because of this it contributes to the improvement of the realism of the images synthesised through the radiosity method. This paper presents the most important characteristics of the parametric differential method as well as the results concerning its accuracy. Comparison of the form factors found using the new algorithm has been made with those analytically found.10.1111/1467-8659.1130193193-204