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dc.contributor.authorCreus López, Carles
dc.contributor.authorPatow, Gustavo Ariel
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Llenguatges i Sistemes Informàtics
dc.date.accessioned2013-04-08T11:44:18Z
dc.date.created2013-02
dc.date.issued2013-02
dc.identifier.citationCreus, C.; Patow, G. R4: Realistic rain rendering in realtime. "Computers and graphics (UK)", Febrer 2013, vol. 37, núm. 1, p. 33-40.
dc.identifier.issn0097-8493
dc.identifier.urihttp://hdl.handle.net/2117/18697
dc.description.abstractRealistic rain simulation is a challenging problem due to the variety of different phenomena to consider. In this paper we propose a new rain rendering algorithm that extends present state of the art in the field, achieving real-time rendering of rain streaks and splashes with complex illumination effects, along with fog, halos and light glows as hints of the participating media. Our algorithm creates particles in the scene using an artist-defined storm distribution (e.g., provided as a 2D cloud distribution). Unlike previous algorithms, no restrictions are imposed on the rain area dimension or shape. Our technique adaptively samples the storm area to simulate rain particles only in the relevant regions and only around the observer. Particle simulation is executed entirely in the graphics hardware, by placing the particles at their updated coordinates at each time-step, also checking for collisions with the scene. To render the rain streaks, we use precomputed images and combine them to achieve complex illumination effects. Several optimizations are introduced to render realistic rain with virtually millions of falling rain droplets.
dc.format.extent8 p.
dc.language.isoeng
dc.subjectÀrees temàtiques de la UPC::Informàtica::Infografia
dc.subject.lcshComputer graphics -- Mathematical models
dc.subject.otherRain rendering
dc.subject.otherReal-time
dc.subject.otherNatural phenomena
dc.titleR4: Realistic rain rendering in realtime
dc.typeArticle
dc.subject.lemacInfografia tridimensional -- Algorismes
dc.identifier.doi10.1016/j.cag.2012.12.002
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://www.sciencedirect.com/science/article/pii/S0097849312001781
dc.rights.accessRestricted access - publisher's policy
local.identifier.drac11807376
dc.description.versionPostprint (published version)
dc.date.lift10000-01-01
local.citation.authorCreus, C.; Patow, G.
local.citation.publicationNameComputers and graphics (UK)
local.citation.volume37
local.citation.number1
local.citation.startingPage33
local.citation.endingPage40


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