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authors Kajiya, J.T. and Kay, T.L.
year 1986
title Ray tracing complex scenes
source Computer Graphics, 20 4, 269-78
summary A new algorithm for speeding up ray-object intersection calculations is presented. Objects are bounded by a new type of extent, which can be made to fit convex hulls arbitrarily tightly. The objects are placed into a hierarchy. A new hierarchy traversal algorithm is presented which is efficient in the sense that objects along the ray are queried in ancient order. Furthermore , we demonstrate that it is currently possible to raytrace scenes containing hundreds of thousands of objects.
series journal paper
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