Bounding volumes are typically used in the early (pruning) stage of collision detection, so that only objects with overlapping bounding volumes need be compared in detail. Computing collision or overlap between bounding volumes involves additional computations, therefore, in order for it to beneficial we need the bounding volume to be relatively tight and the computation overhead to due the collisions to be low.
Bounding volumes are typically used in the early (pruning) stage of collision detection so that only objects with overlapping bounding volumes need be compared in detail Computing collision or overlap between bounding volumes involves additional computations therefore in order for it to beneficial we need the bounding volume to be relatively tight and the computation overhead to due the collisions to be low