Memory‐Conserving Bounding Volume Hierarchies with Coherent Raytracing
J. Mahovsky, Brian Wyvill · Computer Graphics Forum · 2006
Abstract Bounding volume hierarchies (BVHs) are a popular method for speeding up raytracing, but they can consume a large amount of memory for complex scenes. We investigate a hierarchical scheme for encoding BVHs that reduces the BVH storage requirements by 63%–75%. The computational overhead of the scheme can be reduced to negligible levels by shooting bundles of rays through the BVH (coherent raytracing). This gives the speed of a coherency‐based raytracer combined with substantial memory savings.