Bit-Trail Traversal for Stackless LBVH on DirectCompute

Murguía, Sergio; Avila, Francisco Jacob; Reyes, L. Alberto; García, Arturo

doi:10.1201/9781351052108-8

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“…Murguia et al , used an LBVH construction with a stack‐less approach and a middle split based on Morton codes of primitives, and the result was a fast construction approach but poor traversal performance.…”

Section: Related Workmentioning

confidence: 99%

Efficient construction of bounding volume hierarchies into a complete octree for ray tracing

Olivares

Rodríguez²,

García

et al. 2016

Computer Animation & Virtual

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This paper proposes an efficient construction scheme for bounding volume hierarchies based on a complete tree. This construction offers up to 4 faster construction times than binned-surface area heuristic and offers competitive ray traversal performance. The construction is fully parallelized on x86 CPU architectures; it takes advantage of the eight-wide vector units and exploits the advance vector extensions available for current x86 CPU architectures. Additionally, this work presents a clustering algorithm for grouping primitives, which can be computed in linear time O.n/. Furthermore, this construction uses the graphics processing unit to perform intensive operations efficiently.

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Section: Related Workmentioning

confidence: 99%