1. A method, comprising: simultaneously traversing a hierarchy of rays and a hierarchy of objects; and ray tracing, utilizing at least one processor, based on the traversal; wherein an optimized entry point in the hierarchy of objects is determined for each group of rays in the hierarchy of rays; wherein each optimized entry point in the hierarchy of objects is determined utilizing one of a plurality of parallel entry point search algorithms that are run in parallel, where each parallel entry point search algorithm intersects a group of rays in the hierarchy of rays and the hierarchy of objects.