Efficient incoherent ray traversal on GPUs through compressed wide BVHs
In: Proceedings of High Performance Graphics, 2017-07-28
Online
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Zugriff:
We present a GPU-based ray traversal algorithm that operates on compressed wide BVHs and maintains the traversal stack in a compressed format. Our method reduces the amount of memory traffic significantly, which translates to 1.9--2.1× improvement in incoherent ray traversal performance compared to the current state of the art. Furthermore, the memory consumption of our hierarchy is 35--60% of a typical uncompressed BVH.In addition, we present an algorithmically efficient method for converting a binary BVH into a wide BVH in a SAH-optimal fashion, and an improved method for ordering the child nodes at build time for the purposes of octant-aware fixed-order traversal.
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Efficient incoherent ray traversal on GPUs through compressed wide BVHs
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Autor/in / Beteiligte Person: | Karras, Tero ; Laine, Samuli ; Henri Johannes Ylitie |
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Zeitschrift: | Proceedings of High Performance Graphics, 2017-07-28 |
Veröffentlichung: | ACM, 2017 |
Medientyp: | unknown |
DOI: | 10.1145/3105762.3105773 |
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