Název:	Silhouette Extraction for Shadow Volumes Using Potentially Visible Sets
Autoři:	Kobrtek, Jozef Milet, Tomáš Herout, Adam
Citace zdrojového dokumentu:	Journal of WSCG. 2018, vol. 26, no. 1, p. 9-16.
Datum vydání:	2019
Nakladatel:	Václav Skala - UNION Agency
Typ dokumentu:	článek article
URI:	http://hdl.handle.net/11025/35549
ISSN:	1213-6964 (on-line) 1213-6972 (print) 1213-6980 (CD-ROM)
Klíčová slova:	silueta extrakce;oktalový strom;komprese;stínové svazky
Klíčová slova v dalším jazyce:	silhouette extraction;octree;compression;shadow volumes
Abstrakt v dalším jazyce:	In this paper, we present a novel approach for accelerated silhouette computation based on potentially visible sets stored in the octree acceleration structure. The scene space, where the light source can appear, is subdivided into voxels. The octree voxels contain two precomputed sets of edges that potentially or always belong to the silhouette. We also propose a novel method of octree compression for reduction of the memory footprint of the resulting acceleration structure. Using our novel technique we were able to considerably decrease the computational complexity of finding the silhouette and reduce its sensitivity to the number of edges.
Práva:	© Václav Skala - UNION Agency
Vyskytuje se v kolekcích:	Volume 27, Number 1 (2019)

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