{"id":"https://openalex.org/W2044960015","doi":"https://doi.org/10.1145/1507149.1507159","title":"Soft irregular shadow mapping","display_name":"Soft irregular shadow mapping","publication_year":2009,"publication_date":"2009-02-27","ids":{"openalex":"https://openalex.org/W2044960015","doi":"https://doi.org/10.1145/1507149.1507159","mag":"2044960015"},"language":"en","primary_location":{"id":"doi:10.1145/1507149.1507159","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1507149.1507159","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 2009 symposium on Interactive 3D graphics and games","raw_type":"proceedings-article"},"type":"conference-paper","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5102840987","display_name":"Gregory Johnson","orcid":"https://orcid.org/0000-0003-3635-5957"},"institutions":[{"id":"https://openalex.org/I1343180700","display_name":"Intel (United States)","ror":"https://ror.org/01ek73717","country_code":"US","type":"company","lineage":["https://openalex.org/I1343180700"]},{"id":"https://openalex.org/I86519309","display_name":"The University of Texas at Austin","ror":"https://ror.org/00hj54h04","country_code":"US","type":"education","lineage":["https://openalex.org/I86519309"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Gregory S. Johnson","raw_affiliation_strings":["University of Texas at Austin and Intel Corporation","University of Texas at Austin and Intel Corporation#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Texas at Austin and Intel Corporation","institution_ids":["https://openalex.org/I1343180700"]},{"raw_affiliation_string":"University of Texas at Austin and Intel Corporation#TAB#","institution_ids":["https://openalex.org/I86519309"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5084447019","display_name":"Warren A. Hunt","orcid":"https://orcid.org/0009-0004-1444-2544"},"institutions":[{"id":"https://openalex.org/I1343180700","display_name":"Intel (United States)","ror":"https://ror.org/01ek73717","country_code":"US","type":"company","lineage":["https://openalex.org/I1343180700"]},{"id":"https://openalex.org/I86519309","display_name":"The University of Texas at Austin","ror":"https://ror.org/00hj54h04","country_code":"US","type":"education","lineage":["https://openalex.org/I86519309"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Warren A. Hunt","raw_affiliation_strings":["University of Texas at Austin and Intel Corporation","University of Texas at Austin and Intel Corporation#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Texas at Austin and Intel Corporation","institution_ids":["https://openalex.org/I1343180700"]},{"raw_affiliation_string":"University of Texas at Austin and Intel Corporation#TAB#","institution_ids":["https://openalex.org/I86519309"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5074824933","display_name":"Allen Hux","orcid":null},"institutions":[{"id":"https://openalex.org/I4210158342","display_name":"Intel (United Kingdom)","ror":"https://ror.org/058cxws58","country_code":"GB","type":"company","lineage":["https://openalex.org/I1343180700","https://openalex.org/I4210158342"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Allen Hux","raw_affiliation_strings":["Intel Corporation"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Intel Corporation","institution_ids":["https://openalex.org/I4210158342"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5109394409","display_name":"William R. Mark","orcid":null},"institutions":[{"id":"https://openalex.org/I1343180700","display_name":"Intel (United States)","ror":"https://ror.org/01ek73717","country_code":"US","type":"company","lineage":["https://openalex.org/I1343180700"]},{"id":"https://openalex.org/I86519309","display_name":"The University of Texas at Austin","ror":"https://ror.org/00hj54h04","country_code":"US","type":"education","lineage":["https://openalex.org/I86519309"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"William R. Mark","raw_affiliation_strings":["University of Texas at Austin and Intel Corporation","University of Texas at Austin and Intel Corporation#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Texas at Austin and Intel Corporation","institution_ids":["https://openalex.org/I1343180700"]},{"raw_affiliation_string":"University of Texas at Austin and Intel Corporation#TAB#","institution_ids":["https://openalex.org/I86519309"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5067618854","display_name":"Christopher A. Burns","orcid":null},"institutions":[{"id":"https://openalex.org/I1343180700","display_name":"Intel (United States)","ror":"https://ror.org/01ek73717","country_code":"US","type":"company","lineage":["https://openalex.org/I1343180700"]},{"id":"https://openalex.org/I86519309","display_name":"The University of Texas at Austin","ror":"https://ror.org/00hj54h04","country_code":"US","type":"education","lineage":["https://openalex.org/I86519309"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Christopher A. Burns","raw_affiliation_strings":["University of Texas at Austin and Intel Corporation","University of Texas at Austin and Intel Corporation#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Texas at Austin and Intel Corporation","institution_ids":["https://openalex.org/I1343180700"]},{"raw_affiliation_string":"University of Texas at Austin and Intel Corporation#TAB#","institution_ids":["https://openalex.org/I86519309"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5034341483","display_name":"Stephen Junkins","orcid":null},"institutions":[{"id":"https://openalex.org/I4210158342","display_name":"Intel (United Kingdom)","ror":"https://ror.org/058cxws58","country_code":"GB","type":"company","lineage":["https://openalex.org/I1343180700","https://openalex.org/I4210158342"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Stephen Junkins","raw_affiliation_strings":["Intel Corporation"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Intel Corporation","institution_ids":["https://openalex.org/I4210158342"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":31,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"57","last_page":"66"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10481","display_name":"Computer Graphics and Visualization Techniques","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/1704","display_name":"Computer Graphics and Computer-Aided Design"},"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/T10481","display_name":"Computer Graphics and Visualization Techniques","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/1704","display_name":"Computer Graphics and Computer-Aided Design"},"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/T10531","display_name":"Advanced Vision and Imaging","score":0.9995999932289124,"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/T10719","display_name":"3D Shape Modeling and Analysis","score":0.9965000152587891,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.7363585233688354},{"id":"https://openalex.org/keywords/rendering","display_name":"Rendering (computer graphics)","score":0.6888691782951355},{"id":"https://openalex.org/keywords/shadow-mapping","display_name":"Shadow mapping","score":0.6809161305427551},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.6460840702056885},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5982745885848999},{"id":"https://openalex.org/keywords/silhouette","display_name":"Silhouette","score":0.5780513882637024},{"id":"https://openalex.org/keywords/pixel","display_name":"Pixel","score":0.5720115303993225},{"id":"https://openalex.org/keywords/caustic","display_name":"Caustic (mathematics)","score":0.4653322100639343},{"id":"https://openalex.org/keywords/penumbra","display_name":"Penumbra","score":0.4346757233142853},{"id":"https://openalex.org/keywords/computer-graphics","display_name":"Computer graphics (images)","score":0.37609240412712097},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3116762340068817},{"id":"https://openalex.org/keywords/geometry","display_name":"Geometry","score":0.23855331540107727}],"concepts":[{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.7363585233688354},{"id":"https://openalex.org/C205711294","wikidata":"https://www.wikidata.org/wiki/Q176953","display_name":"Rendering (computer graphics)","level":2,"score":0.6888691782951355},{"id":"https://openalex.org/C116544410","wikidata":"https://www.wikidata.org/wiki/Q1478122","display_name":"Shadow mapping","level":2,"score":0.6809161305427551},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.6460840702056885},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5982745885848999},{"id":"https://openalex.org/C58103923","wikidata":"https://www.wikidata.org/wiki/Q2286025","display_name":"Silhouette","level":2,"score":0.5780513882637024},{"id":"https://openalex.org/C160633673","wikidata":"https://www.wikidata.org/wiki/Q355198","display_name":"Pixel","level":2,"score":0.5720115303993225},{"id":"https://openalex.org/C2779567845","wikidata":"https://www.wikidata.org/wiki/Q3492725","display_name":"Caustic (mathematics)","level":2,"score":0.4653322100639343},{"id":"https://openalex.org/C2780577055","wikidata":"https://www.wikidata.org/wiki/Q2069532","display_name":"Penumbra","level":3,"score":0.4346757233142853},{"id":"https://openalex.org/C121684516","wikidata":"https://www.wikidata.org/wiki/Q7600677","display_name":"Computer graphics (images)","level":1,"score":0.37609240412712097},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3116762340068817},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.23855331540107727},{"id":"https://openalex.org/C541997718","wikidata":"https://www.wikidata.org/wiki/Q188151","display_name":"Ischemia","level":2,"score":0.0},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.0},{"id":"https://openalex.org/C164705383","wikidata":"https://www.wikidata.org/wiki/Q10379","display_name":"Cardiology","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/1507149.1507159","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1507149.1507159","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 2009 symposium on Interactive 3D graphics and games","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Sustainable cities and communities","score":0.800000011920929,"id":"https://metadata.un.org/sdg/11"}],"awards":[{"id":"https://openalex.org/G3354372529","display_name":null,"funder_award_id":"CCF-0546236","funder_id":"https://openalex.org/F4320337387","funder_display_name":"Division of Computing and Communication Foundations"}],"funders":[{"id":"https://openalex.org/F4320306076","display_name":"National Science Foundation","ror":"https://ror.org/021nxhr62"},{"id":"https://openalex.org/F4320307102","display_name":"Intel Corporation","ror":"https://ror.org/01ek73717"},{"id":"https://openalex.org/F4320310620","display_name":"University of Texas at Austin","ror":"https://ror.org/00hj54h04"},{"id":"https://openalex.org/F4320337387","display_name":"Division of Computing and Communication Foundations","ror":"https://ror.org/01mng8331"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":33,"referenced_works":["https://openalex.org/W24753294","https://openalex.org/W76064434","https://openalex.org/W1489951077","https://openalex.org/W1501584965","https://openalex.org/W1588209080","https://openalex.org/W1592568352","https://openalex.org/W1965387308","https://openalex.org/W1970864126","https://openalex.org/W1977116206","https://openalex.org/W1979712559","https://openalex.org/W2007716752","https://openalex.org/W2010434892","https://openalex.org/W2015101636","https://openalex.org/W2020996449","https://openalex.org/W2037274781","https://openalex.org/W2040050580","https://openalex.org/W2042701208","https://openalex.org/W2074044324","https://openalex.org/W2076778822","https://openalex.org/W2082016819","https://openalex.org/W2094771726","https://openalex.org/W2109248149","https://openalex.org/W2115395165","https://openalex.org/W2119692458","https://openalex.org/W2130073059","https://openalex.org/W2154927304","https://openalex.org/W2166496075","https://openalex.org/W2167821849","https://openalex.org/W2169150396","https://openalex.org/W4238651787","https://openalex.org/W4240697374","https://openalex.org/W4246964105","https://openalex.org/W4247913514"],"related_works":["https://openalex.org/W2051762050","https://openalex.org/W2081332141","https://openalex.org/W4237065776","https://openalex.org/W2080370764","https://openalex.org/W4236899228","https://openalex.org/W4237310632","https://openalex.org/W2093369918","https://openalex.org/W2065523065","https://openalex.org/W1741509062","https://openalex.org/W2414352797"],"abstract_inverted_index":{"We":[0],"introduce":[1],"a":[2,29,76,156],"straightforward,":[3],"robust,":[4],"and":[5,98,111,159],"efficient":[6],"algorithm":[7,138],"for":[8,139,153],"rendering":[9],"high-quality":[10],"soft":[11],"shadows":[12],"in":[13,19,66,151,169],"dynamic":[14],"scenes.":[15],"Each":[16],"frame,":[17],"points":[18,73,97],"the":[20,24,39,42,45,51,58,70,82,88,92,99,106,121,126,140,170],"scene":[21,40],"visible":[22],"from":[23,41,81,105,144,155],"eye":[25],"are":[26,35,55,116],"inserted":[27],"into":[28],"spatial":[30],"acceleration":[31],"structure.":[32],"Shadow":[33],"umbrae":[34],"computed":[36,56,102],"by":[37,50,75],"sampling":[38],"light":[43],"at":[44,57,125],"image":[46,163],"plane":[47],"coordinates":[48],"given":[49,77],"stored":[52],"points.":[53],"Penumbrae":[54],"same":[59],"set":[60,71],"of":[61,72,87,114,123,136],"points,":[62],"per":[63,149],"silhouette":[64],"edge,":[65],"two":[67],"steps.":[68],"First,":[69],"affected":[74],"edge":[78],"is":[79,101],"estimated":[80],"expected":[83],"light-view":[84],"screen-space":[85],"bounds":[86],"corresponding":[89,129],"penumbra.":[90],"Second,":[91],"actual":[93],"overlap":[94],"between":[95],"these":[96],"penumbra":[100],"analytically":[103],"directly":[104],"occluding":[107],"geometry.":[108],"The":[109],"umbral":[110],"penumbral":[112],"sources":[113],"occlusion":[115],"then":[117],"combined":[118],"to":[119,130,146],"determine":[120],"degree":[122],"shadow":[124],"eye-view":[127],"pixel":[128],"each":[131],"sample":[132],"point.":[133],"An":[134],"implementation":[135],"this":[137],"Larrabee":[141],"architecture":[142],"yields":[143],"27":[145],"33":[147],"frames":[148],"second":[150],"simulation":[152],"scenes":[154],"modern":[157],"game,":[158],"produces":[160],"significantly":[161],"higher":[162],"quality":[164],"than":[165],"other":[166],"recent":[167],"methods":[168],"real-time":[171],"domain.":[172]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":2},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":2},{"year":2013,"cited_by_count":7},{"year":2012,"cited_by_count":6}],"updated_date":"2026-07-14T23:27:15.235271","created_date":"2025-10-10T00:00:00"}
