{"id":"https://openalex.org/W7154502205","doi":"https://doi.org/10.48550/arxiv.2604.13036","title":"Lyra 2.0: Explorable Generative 3D Worlds","display_name":"Lyra 2.0: Explorable Generative 3D Worlds","publication_year":2026,"publication_date":"2026-04-14","ids":{"openalex":"https://openalex.org/W7154502205","doi":"https://doi.org/10.48550/arxiv.2604.13036"},"language":null,"primary_location":{"id":"doi:10.48550/arxiv.2604.13036","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2604.13036","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"article"},"type":"preprint","indexed_in":["datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://doi.org/10.48550/arxiv.2604.13036","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5067175461","display_name":"Tianchang Shen","orcid":"https://orcid.org/0000-0002-7133-2761"},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"Shen, Tianchang","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5009476152","display_name":"Sherwin Bahmani","orcid":"https://orcid.org/0009-0009-5724-3402"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Bahmani, Sherwin","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5133702167","display_name":"Kai He","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"He, Kai","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5133642400","display_name":"Sangeetha Grama Srinivasan","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Srinivasan, Sangeetha Grama","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5043812968","display_name":"Tianshi Cao","orcid":"https://orcid.org/0000-0001-6579-6044"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Cao, Tianshi","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5133688466","display_name":"Jiawei Ren","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Ren, Jiawei","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5133689255","display_name":"Ruilong Li","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Li, Ruilong","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5133708969","display_name":"Zian Wang","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Wang, Zian","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5034163663","display_name":"Nicholas Sharp","orcid":"https://orcid.org/0000-0002-3926-1246"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Sharp, Nicholas","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5133644059","display_name":"Zan Gojcic","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Gojcic, Zan","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5070642269","display_name":"Sanja Fidler","orcid":"https://orcid.org/0000-0003-1040-3260"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Fidler, Sanja","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5133645956","display_name":"Jiahui Huang","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Huang, Jiahui","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5133659492","display_name":"Huan Ling","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Ling, Huan","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5133697205","display_name":"Jun Gao","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Gao, Jun","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5026841733","display_name":"Xuanchi Ren","orcid":"https://orcid.org/0000-0001-6376-7100"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Ren, Xuanchi","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":15,"corresponding_author_ids":["https://openalex.org/A5067175461"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10775","display_name":"Generative Adversarial Networks and Image Synthesis","score":0.5647000074386597,"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/T10775","display_name":"Generative Adversarial Networks and Image Synthesis","score":0.5647000074386597,"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":0.1785999983549118,"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"}},{"id":"https://openalex.org/T10531","display_name":"Advanced Vision and Imaging","score":0.12269999831914902,"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/leverage","display_name":"Leverage (statistics)","score":0.6571000218391418},{"id":"https://openalex.org/keywords/view-synthesis","display_name":"View synthesis","score":0.53329998254776},{"id":"https://openalex.org/keywords/rendering","display_name":"Rendering (computer graphics)","score":0.5254999995231628},{"id":"https://openalex.org/keywords/hallucinating","display_name":"Hallucinating","score":0.5005000233650208},{"id":"https://openalex.org/keywords/generative-model","display_name":"Generative model","score":0.45579999685287476},{"id":"https://openalex.org/keywords/generative-grammar","display_name":"Generative grammar","score":0.37220001220703125}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7439000010490417},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.6739000082015991},{"id":"https://openalex.org/C153083717","wikidata":"https://www.wikidata.org/wiki/Q6535263","display_name":"Leverage (statistics)","level":2,"score":0.6571000218391418},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.600600004196167},{"id":"https://openalex.org/C2776449333","wikidata":"https://www.wikidata.org/wiki/Q7928781","display_name":"View synthesis","level":3,"score":0.53329998254776},{"id":"https://openalex.org/C205711294","wikidata":"https://www.wikidata.org/wiki/Q176953","display_name":"Rendering (computer graphics)","level":2,"score":0.5254999995231628},{"id":"https://openalex.org/C2911011789","wikidata":"https://www.wikidata.org/wiki/Q130741","display_name":"Hallucinating","level":2,"score":0.5005000233650208},{"id":"https://openalex.org/C167966045","wikidata":"https://www.wikidata.org/wiki/Q5532625","display_name":"Generative model","level":3,"score":0.45579999685287476},{"id":"https://openalex.org/C39890363","wikidata":"https://www.wikidata.org/wiki/Q36108","display_name":"Generative grammar","level":2,"score":0.37220001220703125},{"id":"https://openalex.org/C2776459999","wikidata":"https://www.wikidata.org/wiki/Q2119376","display_name":"Fidelity","level":2,"score":0.35920000076293945},{"id":"https://openalex.org/C109950114","wikidata":"https://www.wikidata.org/wiki/Q4464732","display_name":"3D reconstruction","level":2,"score":0.33959999680519104},{"id":"https://openalex.org/C63479239","wikidata":"https://www.wikidata.org/wiki/Q7353546","display_name":"Robustness (evolution)","level":3,"score":0.32280001044273376},{"id":"https://openalex.org/C121684516","wikidata":"https://www.wikidata.org/wiki/Q7600677","display_name":"Computer graphics (images)","level":1,"score":0.289900004863739},{"id":"https://openalex.org/C2779662365","wikidata":"https://www.wikidata.org/wiki/Q5416694","display_name":"Event (particle physics)","level":2,"score":0.2824000120162964},{"id":"https://openalex.org/C2776035091","wikidata":"https://www.wikidata.org/wiki/Q7928819","display_name":"Viewpoints","level":2,"score":0.2793000042438507},{"id":"https://openalex.org/C159877910","wikidata":"https://www.wikidata.org/wiki/Q2202883","display_name":"Autoregressive model","level":2,"score":0.2606000006198883}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.48550/arxiv.2604.13036","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2604.13036","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":null,"raw_source_name":null,"raw_type":"article"}],"best_oa_location":{"id":"doi:10.48550/arxiv.2604.13036","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2604.13036","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"article"},"sustainable_development_goals":[{"score":0.42670875787734985,"display_name":"Sustainable cities and communities","id":"https://metadata.un.org/sdg/11"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":[],"abstract_inverted_index":{"Recent":[0],"advances":[1],"in":[2],"video":[3,41,59,76,220],"generation":[4,60,84,120],"enable":[5,215],"a":[6,72,137],"new":[7],"paradigm":[8],"for":[9,47,82,139,160,183],"3D":[10,24,44,143,154,234],"scene":[11,18,129],"creation:":[12],"generating":[13,140],"camera-controlled":[14],"videos":[15],"that":[16,195,230],"simulate":[17],"walkthroughs,":[19],"then":[20],"lifting":[21],"them":[22],"to":[23,53,113,199,206,225],"via":[25],"feed-forward":[26,227],"reconstruction":[27,31,228],"techniques.":[28],"This":[29],"generative":[30,181],"approach":[32],"combines":[33],"the":[34,106,111,173,180,197],"visual":[35],"fidelity":[36],"and":[37,50,69,95,131,156,168,218],"creative":[38],"capacity":[39],"of":[40,91],"models":[42,77,229],"with":[43,65,172,192],"outputs":[45],"ready":[46],"real-time":[48],"rendering":[49],"simulation.":[51],"Scaling":[52],"large,":[54],"complex":[55],"environments":[56],"requires":[57],"3D-consistent":[58,219],"over":[61,125],"long":[62],"camera":[63],"trajectories":[64],"large":[66],"viewpoint":[67],"changes":[68],"location":[70],"revisits,":[71],"setting":[73],"where":[74],"current":[75],"degrade":[78],"quickly.":[79],"Existing":[80],"methods":[81],"long-horizon":[83],"are":[85],"fundamentally":[86],"limited":[87],"by":[88],"two":[89],"forms":[90],"degradation:":[92],"spatial":[93,149],"forgetting":[94],"temporal":[96,108,188],"drifting.":[97],"As":[98],"exploration":[99],"proceeds,":[100],"previously":[101],"observed":[102],"regions":[103],"fall":[104],"outside":[105],"model's":[107],"context,":[109],"forcing":[110],"model":[112,198],"hallucinate":[114],"structures":[115],"when":[116],"revisited.":[117],"Meanwhile,":[118],"autoregressive":[119],"accumulates":[121],"small":[122],"synthesis":[123],"errors":[124],"time,":[126],"gradually":[127],"distorting":[128],"appearance":[130,184],"geometry.":[132],"We":[133],"present":[134],"Lyra":[135],"2.0,":[136],"framework":[138],"persistent,":[141],"explorable":[142],"worlds":[144],"at":[145],"scale.":[146],"To":[147,186],"address":[148,187],"forgetting,":[150],"we":[151,190,223],"maintain":[152],"per-frame":[153],"geometry":[155],"use":[157],"it":[158,205],"solely":[159],"information":[161],"routing":[162],"--":[163,176],"retrieving":[164],"relevant":[165],"past":[166],"frames":[167],"establishing":[169],"dense":[170],"correspondences":[171],"target":[174],"viewpoints":[175],"while":[177],"relying":[178],"on":[179],"prior":[182],"synthesis.":[185],"drifting,":[189],"train":[191],"self-augmented":[193],"histories":[194],"expose":[196],"its":[200],"own":[201],"degraded":[202],"outputs,":[203],"teaching":[204],"correct":[207],"drift":[208],"rather":[209],"than":[210],"propagate":[211],"it.":[212],"Together,":[213],"these":[214],"substantially":[216],"longer":[217],"trajectories,":[221],"which":[222],"leverage":[224],"fine-tune":[226],"reliably":[231],"recover":[232],"high-quality":[233],"scenes.":[235]},"counts_by_year":[],"updated_date":"2026-05-05T08:41:31.759640","created_date":"2026-04-16T00:00:00"}