Space subdivision for fast ray tracing
@article{Glassner1984SpaceSF,
title={Space subdivision for fast ray tracing},
author={Andrew S. Glassner},
journal={IEEE Computer Graphics and Applications},
year={1984},
volume={4},
pages={15-24}
}An algorithm is described that speeds up ray-tracing techniques by reducing the number of time-consuming object-ray intersection calculations that have to be made. The algorithm is based on subdividing space into an octree, associating a given voxel with only those objects whose surfaces pass through the volume of the voxel. It includes a technique for obtaining fast access to any node and a mechanism for finding the next node intersected by a ray when it has hit nothing in the current node…
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