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Hoops: 3D curves as conservative occluders for cell visibility

Autor
Brunet, P.; Navazo, I.; Rossignac, J.; Saona, C.
Tipus d'activitat
Article en revista
Revista
Computer graphics forum
Data de publicació
2001-08
Volum
20
Número
3
Pàgina inicial
C/431
Pàgina final
C/442
DOI
https://doi.org/10.1111/1467-8659.00536 Obrir en finestra nova
Repositori
http://hdl.handle.net/2117/10867 Obrir en finestra nova
Resum
Most visibility culling algorithms require convexity of occluders. Occluder synthesis algorithms attempt to construct large convex occluders inside bulky non-convex sets. Occluder fusion algorithms generate convex occluders that are contained in the umbra cast by a group of objects given an area light. In this paper we prove that convexity requirements can be shifted from the occluders to their umbra with no loss of efficiency, and use this property to show how some special non-planar, non-conve...
Citació
Brunet, P. [et al.]. Hoops: 3D curves as conservative occluders for cell visibility. "Computer graphics forum", Agost 2001, vol. 20, núm. 3, p. C/431-C/442.
Paraules clau
3d Curves, Cell-visibility, Conservative Occluders, Convex Occluders, Hoops, Nonplanar Nonconvex Closed Polylines, Occluder Fusion Algorithms, Three Dimensional Curves, Visibility Culling Algorithms
Grup de recerca
ViRVIG - Grup de Recerca en Visualització, Realitat Virtual i Interacció Gràfica

Participants

  • Brunet Crosa, Pere  (autor)
  • Navazo Alvaro, Isabel  (autor)
  • Rossignac, Jarek  (autor)
  • Saona Vazquez, Carlos Luis  (autor)