https://ispranproceedings.elpub.ru/jour/article/view/1531

Geometry simplification for the radiosity method is a laborious process and it is difficult to automate in the general case. As an alternative solution to this problem, this paper proposes a modification of the radiosity method using approximation called “virtual patches”. Virtual patches are elements of the geometry obtained by clustering some points of the original geometry for which the illumination is calculated. They have a normal, color and area, but do not have a geometric representation, representing a cloud of points inside the voxel. In comparison with the original radiosity method, the proposed method, without reducing the performance of calculating global illumination, increases its accuracy.