{"id":"https://openalex.org/W4411378220","doi":"https://doi.org/10.1145/3744898","title":"ReSTIR BDPT: Bidirectional ReSTIR Path Tracing with Caustics","display_name":"ReSTIR BDPT: Bidirectional ReSTIR Path Tracing with Caustics","publication_year":2025,"publication_date":"2025-06-17","ids":{"openalex":"https://openalex.org/W4411378220","doi":"https://doi.org/10.1145/3744898"},"language":"en","primary_location":{"id":"doi:10.1145/3744898","is_oa":true,"landing_page_url":"https://doi.org/10.1145/3744898","pdf_url":null,"source":{"id":"https://openalex.org/S185367456","display_name":"ACM Transactions on Graphics","issn_l":"0730-0301","issn":["0730-0301","1557-7368"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319798","host_organization_name":"Association for Computing Machinery","host_organization_lineage":["https://openalex.org/P4310319798"],"host_organization_lineage_names":["Association for Computing Machinery"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ACM Transactions on Graphics","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"hybrid","oa_url":"https://doi.org/10.1145/3744898","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5099497124","display_name":"Trevor Hedstrom","orcid":null},"institutions":[{"id":"https://openalex.org/I36258959","display_name":"University of California San Diego","ror":"https://ror.org/0168r3w48","country_code":"US","type":"education","lineage":["https://openalex.org/I36258959"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Trevor Hedstrom","raw_affiliation_strings":["University of California San Diego","Computer Science & Engineering, University of California San Diego"],"raw_orcid":"https://orcid.org/0009-0001-3168-1705","affiliations":[{"raw_affiliation_string":"University of California San Diego","institution_ids":["https://openalex.org/I36258959"]},{"raw_affiliation_string":"Computer Science & Engineering, University of California San Diego","institution_ids":["https://openalex.org/I36258959"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5070500994","display_name":"Markus Kettunen","orcid":"https://orcid.org/0000-0002-5206-9603"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Markus Kettunen","raw_affiliation_strings":["NVIDIA Corp"],"raw_orcid":"https://orcid.org/0000-0002-5206-9603","affiliations":[{"raw_affiliation_string":"NVIDIA Corp","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5020509011","display_name":"Daqi Lin","orcid":"https://orcid.org/0000-0002-5139-6418"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Daqi Lin","raw_affiliation_strings":["NVIDIA Corp"],"raw_orcid":"https://orcid.org/0000-0002-5139-6418","affiliations":[{"raw_affiliation_string":"NVIDIA Corp","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5006219693","display_name":"Chris Wyman","orcid":"https://orcid.org/0000-0002-5133-4292"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Chris Wyman","raw_affiliation_strings":["NVIDIA Corp"],"raw_orcid":"https://orcid.org/0000-0002-5133-4292","affiliations":[{"raw_affiliation_string":"NVIDIA Corp","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5030293104","display_name":"Tzu\u2010Mao Li","orcid":"https://orcid.org/0000-0001-5443-470X"},"institutions":[{"id":"https://openalex.org/I36258959","display_name":"University of California San Diego","ror":"https://ror.org/0168r3w48","country_code":"US","type":"education","lineage":["https://openalex.org/I36258959"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Tzu-Mao Li","raw_affiliation_strings":["University of California San Diego","Computer Science and Engineering, University of California San Diego"],"raw_orcid":"https://orcid.org/0000-0001-5443-470X","affiliations":[{"raw_affiliation_string":"University of California San Diego","institution_ids":["https://openalex.org/I36258959"]},{"raw_affiliation_string":"Computer Science and Engineering, University of California San Diego","institution_ids":["https://openalex.org/I36258959"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":3.0621,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":{"value":0.91784599,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":91,"max":99},"biblio":{"volume":"44","issue":"5","first_page":"1","last_page":"16"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10627","display_name":"Advanced Image and Video Retrieval Techniques","score":0.9991999864578247,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10627","display_name":"Advanced Image and Video Retrieval Techniques","score":0.9991999864578247,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10191","display_name":"Robotics and Sensor-Based Localization","score":0.9987000226974487,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10531","display_name":"Advanced Vision and Imaging","score":0.9965999722480774,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/path-tracing","display_name":"Path tracing","score":0.7726317048072815},{"id":"https://openalex.org/keywords/tracing","display_name":"Tracing","score":0.5819825530052185},{"id":"https://openalex.org/keywords/path","display_name":"Path (computing)","score":0.557363748550415},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5475959181785583},{"id":"https://openalex.org/keywords/computer-graphics","display_name":"Computer graphics (images)","score":0.5119934678077698},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.43501460552215576},{"id":"https://openalex.org/keywords/ray-tracing","display_name":"Ray tracing (physics)","score":0.41999244689941406},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.35658973455429077},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.35234740376472473},{"id":"https://openalex.org/keywords/geometry","display_name":"Geometry","score":0.3352099657058716},{"id":"https://openalex.org/keywords/topology","display_name":"Topology (electrical circuits)","score":0.32083627581596375},{"id":"https://openalex.org/keywords/rendering","display_name":"Rendering (computer graphics)","score":0.21577242016792297},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.17977100610733032},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.10894057154655457},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.09269046783447266}],"concepts":[{"id":"https://openalex.org/C110541219","wikidata":"https://www.wikidata.org/wiki/Q72948","display_name":"Path tracing","level":3,"score":0.7726317048072815},{"id":"https://openalex.org/C138673069","wikidata":"https://www.wikidata.org/wiki/Q322229","display_name":"Tracing","level":2,"score":0.5819825530052185},{"id":"https://openalex.org/C2777735758","wikidata":"https://www.wikidata.org/wiki/Q817765","display_name":"Path (computing)","level":2,"score":0.557363748550415},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5475959181785583},{"id":"https://openalex.org/C121684516","wikidata":"https://www.wikidata.org/wiki/Q7600677","display_name":"Computer graphics (images)","level":1,"score":0.5119934678077698},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.43501460552215576},{"id":"https://openalex.org/C121483023","wikidata":"https://www.wikidata.org/wiki/Q7298343","display_name":"Ray tracing (physics)","level":2,"score":0.41999244689941406},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.35658973455429077},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.35234740376472473},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.3352099657058716},{"id":"https://openalex.org/C184720557","wikidata":"https://www.wikidata.org/wiki/Q7825049","display_name":"Topology (electrical circuits)","level":2,"score":0.32083627581596375},{"id":"https://openalex.org/C205711294","wikidata":"https://www.wikidata.org/wiki/Q176953","display_name":"Rendering (computer graphics)","level":2,"score":0.21577242016792297},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.17977100610733032},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.10894057154655457},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.09269046783447266},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/3744898","is_oa":true,"landing_page_url":"https://doi.org/10.1145/3744898","pdf_url":null,"source":{"id":"https://openalex.org/S185367456","display_name":"ACM Transactions on Graphics","issn_l":"0730-0301","issn":["0730-0301","1557-7368"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319798","host_organization_name":"Association for Computing Machinery","host_organization_lineage":["https://openalex.org/P4310319798"],"host_organization_lineage_names":["Association for Computing Machinery"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ACM Transactions on Graphics","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.1145/3744898","is_oa":true,"landing_page_url":"https://doi.org/10.1145/3744898","pdf_url":null,"source":{"id":"https://openalex.org/S185367456","display_name":"ACM Transactions on Graphics","issn_l":"0730-0301","issn":["0730-0301","1557-7368"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319798","host_organization_name":"Association for Computing Machinery","host_organization_lineage":["https://openalex.org/P4310319798"],"host_organization_lineage_names":["Association for Computing Machinery"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ACM Transactions on Graphics","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":24,"referenced_works":["https://openalex.org/W1564611446","https://openalex.org/W1797096580","https://openalex.org/W1907223193","https://openalex.org/W1976454752","https://openalex.org/W1986743298","https://openalex.org/W2057293583","https://openalex.org/W2090346540","https://openalex.org/W2151035893","https://openalex.org/W2182306370","https://openalex.org/W2272512577","https://openalex.org/W2964977804","https://openalex.org/W3018536089","https://openalex.org/W3086190093","https://openalex.org/W3109343562","https://openalex.org/W4200327812","https://openalex.org/W4245933748","https://openalex.org/W4286611184","https://openalex.org/W4286611306","https://openalex.org/W4317626573","https://openalex.org/W4376647904","https://openalex.org/W4385254026","https://openalex.org/W4395690528","https://openalex.org/W4400820652","https://openalex.org/W6944900915"],"related_works":["https://openalex.org/W2043557177","https://openalex.org/W2349351862","https://openalex.org/W4242687015","https://openalex.org/W2123398485","https://openalex.org/W4317440205","https://openalex.org/W4378805578","https://openalex.org/W2952666320","https://openalex.org/W2141816486","https://openalex.org/W2347463717","https://openalex.org/W4391004841"],"abstract_inverted_index":{"Recent":[0],"spatiotemporal":[1],"resampling":[2],"algorithms":[3],"(ReSTIR)":[4],"accelerate":[5],"real-time":[6],"path":[7,26,45,58,81,115],"tracing":[8,46,59,91],"by":[9,21,74],"reusing":[10],"samples":[11],"between":[12],"pixels":[13],"and":[14,35,60,123,144],"frames.":[15,132],"However,":[16],"existing":[17],"methods":[18],"are":[19],"limited":[20],"the":[22,50,65],"sampling":[23,51,69,112],"quality":[24,52],"of":[25,78,87],"tracing,":[27],"making":[28],"them":[29],"inefficient":[30],"for":[31],"scenes":[32],"with":[33],"caustics":[34,125,130],"hard-to-reach":[36],"lights.":[37],"We":[38],"develop":[39],"a":[40,80,111,118],"ReSTIR":[41,61,72,153],"variant":[42],"incorporating":[43],"bidirectional":[44,57,88,119],"that":[47,127],"significantly":[48,146],"improves":[49],"in":[53,110,156],"these":[54,105],"scenes.":[55],"Combining":[56],"introduces":[62],"multiple":[63],"challenges:":[64],"generalized":[66],"resampled":[67],"importance":[68],"(GRIS)":[70],"behind":[71],"is,":[73],"default,":[75],"not":[76],"aware":[77],"how":[79],"was":[82],"sampled,":[83],"which":[84],"complicates":[85],"reuse":[86],"paths.":[89],"Light":[90],"is":[92],"also":[93],"challenging":[94],"since":[95],"light":[96],"subpaths":[97],"can":[98,128],"contribute":[99],"to":[100,150],"all":[101],"pixels.":[102],"To":[103],"address":[104],"challenges,":[106],"we":[107],"apply":[108],"GRIS":[109],"technique-aware":[113],"extended":[114],"space,":[116],"design":[117],"hybrid":[120],"shift":[121],"mapping,":[122],"introduce":[124],"reservoirs":[126],"accumulate":[129],"across":[131,140],"Our":[133],"method":[134],"takes":[135],"around":[136],"50ms":[137],"per":[138],"frame":[139],"our":[141],"test":[142],"scenes,":[143],"achieves":[145],"lower":[147],"error":[148],"compared":[149],"prior":[151],"unidirectional":[152],"variants":[154],"running":[155],"equal":[157],"time.":[158]},"counts_by_year":[{"year":2026,"cited_by_count":3},{"year":2025,"cited_by_count":1}],"updated_date":"2026-05-21T06:26:12.895304","created_date":"2025-10-10T00:00:00"}