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Multi‐level tetrahedralization‐based accelerator for ray‐tracing animated scenes
Author(s) -
Aman Aytek,
Demirci Serkan,
Güdükbay Uğur,
Wald Ingo
Publication year - 2021
Publication title -
computer animation and virtual worlds
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.225
H-Index - 49
eISSN - 1546-427X
pISSN - 1546-4261
DOI - 10.1002/cav.2024
Subject(s) - computer science , rendering (computer graphics) , ray tracing (physics) , computer graphics (images) , data structure , bounding volume , acceleration , collision detection , collision , optics , physics , computer security , classical mechanics , programming language
We describe a hybrid acceleration structure for ray tracing. The hybrid structure is a Bounding Volume Hierarchy (BVH) where the leaf nodes are tetrahedralized for a decent ray‐surface intersection performance. We use the hybrid acceleration structure (BTH) in a two‐level acceleration structure for rendering animated scenes. There is a BVH at the top level in this two‐level structure and the proposed hybrid structure (BTH) at the bottom level. We test the proposed two‐level structure (BVH‐BTH) for various animated scenes and obtained promising results against other acceleration structures in terms of rendering times. The two‐level BVH‐BTH structure outperforms the two‐level BVH structure for the tested dynamic scenes.