Abstract. Angiogenesis, the growth of vascular structures, is an extremely complex biological process which has long puzzled scientists. Better physiological understanding of this phenomenon could result in many useful medical applications, from virtual surgery simulators for medical interventions, to cancer therapy, where e.g. influence of certain factors on the system could be simulated. Although there is a lot of research being done on blood circulatory systems and many models with high level of mathematical sophistication have already been proposed, most of them offer very modest visual quality for the resultant vascularities. This report is a proposition of a macroscopic model allowing for generation of various vascular systems with high graphical fidelity for simulation purposes.