1. A computer-enabled method of rendering a scene of objects representing physical objects, the method comprising: projecting a first plurality of rays against a scene; aggregating a second plurality of rays that intersect a bounding volume, wherein the bounding volume encloses at least one object of the scene, and wherein the second plurality of rays is a portion of the first plurality of rays; determining intersections of the second plurality of aggregated rays with the at least one object when the number of the second plurality of aggregated rays exceeds a predetermined value; and rendering the scene based on the determined intersections.