GPU BATCH OCCLUSION QUERY WITH SPATIAL UPDATE

摘要

Methods for massive model visualization and corresponding systems and computer-readable mediums. A method includes populating (610) a depth buffer on a graphics processing unit (GPU) (128) with depth values of opaque geometries of a three dimensional (3D) geometric model (226). The method includes executing (615) occlusion queries over cells of a spatial hierarchy (300, 400) that correspond to the 3D geometric model (226). The method includes determining, (620) based on results from the occlusion queries, if each cell is culled or visible from a current viewpoint. The method includes displaying (625) the 3D geometric model (226) according to the cells that are determined to be visible from the current viewpoint.