url URL date NUMBER NUMBER NUMBERtNUMBER NUMBER NUMBER NUMBER NUMBER rendering engines used in today s game titles utilize various techniques for hidden surface removal hsr different techniques being suitable for different game genres for example action games played in closed in locations need an engine allowing fast rendering of a few hundred polygons a high frame rate and a high level of details to impress players conversely a game that is taking place outdoors requires quite a different approach this features present one one technique for hidden surface removal usable in NUMBERd engines using tilizing object occlusion 