Ertl, T.Geyer, F.Herold, H.Kraus, U.Niemeier, R.Nollert, H.- P.Rebetzky, A.Ruder, H.Zeller, G.2015-10-052015-10-0519891017-4656https://doi.org/10.2312/egtp.19891011This paper reports on progress we have made in modelling cosmic X-ray sources on supercomputers. The results we present are meant to serve as an example for the fact that sophisticated visualization techniques play a crucial role in scientific computing. Among the graphical methods we demonstrate, raytracing in curved space-time and a physically motivated 3D-volume rendering algorithm might be of interest to the graphics community in general.10.2312/egtp.19891011