A method to generate motion blur images for radiosity scenes is presented. The method, based on Global Monte Carlo techniques, is intended to perform an accurate lighting simulation of the effect. Once the illumination is computed a rendering step consisting on an accumulation buffer approach is used to obtain the motion blur images. Due to the fact that radiosity solutions are view independent they can be used to obtain motion blur images from different points of view with a single rendering step, once we have the illumination computed. Results show that the illumination computed with the method is correct. The proposed method is well suited for being included in the whole computation of animations in a radiosity environment.