Today smoothed particle hydrodynamics (SPH) play an important role in the computation of gas dynamical processes appearing in astrophysics and other fields. Nevertheless the visualization techniques for this particle based model are still rudimentary. In order to visualize the density and pressure appearing in the simulation correctly we investigated the simulation in more detail. By this investigation we show that a splatting based visualization technique displays the volume density and pressure used in the simulation exactly. Furthermore we conclude that in our situation splatting is the only reasonable technique and is superior to other techniques such as raycasting. Finally, our visualization method enables the scientist to control the result of the simulation especially with few particles and gives high quality rendering at every state of the research proces.