dc.contributor
Universitat Politècnica de Catalunya. Departament de Ciències de la Computació
dc.contributor
Universitat Politècnica de Catalunya. GIE - Grup d'Informàtica a l'Enginyeria
dc.contributor.author
Sala Valcárcel, Francisco
dc.contributor.author
Tost Pardell, Daniela
dc.identifier
Sala, F., Tost, D. "Light transfer equations for volume visualization". 1996.
dc.identifier
https://hdl.handle.net/2117/97080
dc.description.abstract
The simulation of the transport of light through non-empty media is of
great importance in volume visualization applications. For low-albedo
media, the Single Scattering Model is a good approximation, and it is
used extensively. Its derivation is presented here in detail. The
model establishes the light that reaches an observer through a
participating media from a given direction. The resultant expression
is an integral of light contributions over a line of sight properly
scaled by their correspondent attenuation factors. In the general
case, the integral has not closed form solution. Some simplificative
assumptions that allow to compute it analytically are exposed
here. Finally, it is shown how the Single Scattering Model may be
applied both to ray-casting and to splatting algorithms, and how it is
used to shade surfaces in direct volume rendering.
dc.description.abstract
Postprint (published version)
dc.format
application/pdf
dc.rights
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject
Àrees temàtiques de la UPC::Informàtica::Infografia
dc.subject
Transport of light
dc.subject
Volume visualization
dc.subject
Single scattering model
dc.subject
Light transfer
dc.title
Light transfer equations for volume visualization
dc.type
External research report
