000069992 001__ 69992 000069992 005__ 20210212121619.0 000069992 0247_ $$2doi$$a10.1145/3102163.3102242 000069992 0248_ $$2sideral$$a105195 000069992 037__ $$aART-2018-105195 000069992 041__ $$aeng 000069992 100__ $$0(orcid)0000-0001-9960-8945$$aMarco, Julio$$uUniversidad de Zaragoza 000069992 245__ $$aSecond-order Occlusion-aware Volumetric Radiance Caching 000069992 260__ $$c2018 000069992 5060_ $$aAccess copy available to the general public$$fUnrestricted 000069992 5203_ $$aAccurate simulation of light transport in participating media is expensive, due to the many sca ering events. However, the band- limiting e ect of sca ering in media makes this kind of light trans- port very suitable for adaptive sampling and reconstruction tech- niques. In this work we present a novel algorithm that adaptively samples radiance from sparse points in the medium using up-to second-order occlusion-aware derivatives to determine when in- terpolation is appropriate. We derive our metric from each point’s incoming light eld. We use a proxy triangulation-based repre- sentation of the radiance re ected by the surrounding medium and geometry to e ciently compute the rst- and second-order derivatives of the radiance at the cache points while accounting for occlusion changes. We validate the quality of our approach on a self-contained two-dimensional model for light transport in media. en we show how our results generalize to practical three- dimensional scenarios, where we show much be er results while reducing computation time up to a 30% compared to previous work. 000069992 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/TIN2016-78753-P$$9info:eu-repo/grantAgreement/ES/MINECO/TIN2016-79710-P 000069992 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/ 000069992 590__ $$a6.495$$b2018 000069992 591__ $$aCOMPUTER SCIENCE, SOFTWARE ENGINEERING$$b1 / 107 = 0.009$$c2018$$dQ1$$eT1 000069992 592__ $$a2.272$$b2018 000069992 593__ $$aComputer Graphics and Computer-Aided Design$$c2018$$dQ1 000069992 655_4 $$ainfo:eu-repo/semantics/conferenceObject$$vinfo:eu-repo/semantics/publishedVersion 000069992 700__ $$0(orcid)0000-0001-9000-0466$$aJarabo, Adrian$$uUniversidad de Zaragoza 000069992 700__ $$aJarosz, Wojciech 000069992 700__ $$0(orcid)0000-0002-7503-7022$$aGutierrez, Diego$$uUniversidad de Zaragoza 000069992 7102_ $$15007$$2570$$aUniversidad de Zaragoza$$bDpto. Informát.Ingenie.Sistms.$$cÁrea Lenguajes y Sistemas Inf. 000069992 773__ $$g37, 2 (2018), [2 pp.]$$pACM trans. graph.$$tACM TRANSACTIONS ON GRAPHICS$$x0730-0301 000069992 8564_ $$s3009793$$uhttps://zaguan.unizar.es/record/69992/files/texto_completo.pdf$$yVersión publicada 000069992 8564_ $$s113754$$uhttps://zaguan.unizar.es/record/69992/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada 000069992 909CO $$ooai:zaguan.unizar.es:69992$$particulos$$pdriver 000069992 951__ $$a2021-02-12-12:05:52 000069992 980__ $$aARTICLE