Abstract: In this paper we present a method for radiosity computation in dynamic scenes. The algorithm is intended for animations in which the motion of the objects is known in advance. Radiosity is computed using a Monte Carlo approach. Instead of computing each frame separately, we propose to compute the lighting simulation of a sequence of frames in a unique process. This is achieved by the merging of the whole sequence of frames into a single scene, so each moving object is replicate as many times as frames. We present results which show the performance of the proposed method. This specially interesting for sequences of a significant number of frames. We also present an analysis of the algorithm complexity. An important feature of the algorithm is that the accuracy of the image in each frame is the same as the one we would obtain by means of computing each frame separately.