The operation of bulk Nb accelerator cavities is extremely expensive due to the low-temperature helium cooling. It is expected that Nb3Sn-coated cavities and cavities with superconductor-insulator-superconductor layered coatings can be operated with higher fields and higher temperatures, leading to a decrease in power consumption. Such coatings are applied to the cavity via sputtering. However, the sputtering distribution on a complex shape, such as a TESLA cavity, is typically inhomogeneous. This leads to the question of what the influence of inhomogeneous sputtering is on the quality of the cavity. Before attempting to answer this question, we want a way to represent this sputtering distribution in a simulation software standard in the field, namely CST.