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The produced visuals, gameplay and performance were evaluated by gamers, programmers and designers. Furthermore, the performance, in"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"The proposed lighting system estimates the geometrical shape of the 2D objects as if they were 3D for further light interaction, therefore producing a 2.5D effect.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"That opacity maps can reliably correct the visual artifacts created by the 3D shape estimation step while preserving real-time performance across varied hardware.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"A CPU-GPU coupled technique estimates 3D geometry from 2D isometric procedural maps and uses opacity maps to produce real-time 2.5D lighting effects.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Estimating 2D isometric objects as 3D shapes produces real-time 2.5D lighting for procedurally generated game terrains.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"a1d81687a7f58fd7a254a798feb2a886e76f59d898f0ecbb37a72c76a9355d3a"},"source":{"id":"2605.17666","kind":"arxiv","version":1},"verdict":{"id":"9fab5fdb-c73e-4079-badb-4269f4156298","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-19T21:55:29.567333Z","strongest_claim":"The proposed lighting system estimates the geometrical shape of the 2D objects as if they were 3D for further light interaction, therefore producing a 2.5D effect.","one_line_summary":"A CPU-GPU coupled technique estimates 3D geometry from 2D isometric procedural maps and uses opacity maps to produce real-time 2.5D lighting effects.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"That opacity maps can reliably correct the visual artifacts created by the 3D shape estimation step while preserving real-time performance across varied hardware.","pith_extraction_headline":"Estimating 2D isometric objects as 3D shapes produces real-time 2.5D lighting for procedurally generated game terrains."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2605.17666/integrity.json","findings":[],"available":true,"detectors_run":[{"name":"cited_work_retraction","ran_at":"2026-05-19T22:21:57.189523Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"doi_title_agreement","ran_at":"2026-05-19T22:01:19.513327Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"doi_compliance","ran_at":"2026-05-19T22:01:02.756279Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"citation_quote_validity","ran_at":"2026-05-19T21:49:44.266430Z","status":"skipped","version":"0.1.0","findings_count":0},{"name":"ai_meta_artifact","ran_at":"2026-05-19T21:33:23.537732Z","status":"skipped","version":"1.0.0","findings_count":0},{"name":"claim_evidence","ran_at":"2026-05-19T21:21:57.453339Z","status":"completed","version":"1.0.0","findings_count":0}],"snapshot_sha256":"0e5654554d7f1b1ffc9363cb1663c3d311fb617be2bb96dc077b61d6fdfe4f3a"},"references":{"count":4,"sample":[{"doi":"","year":2011,"title":"Computational Intelligence Magazine 6, 16-25 (2011)","work_id":"75e9244b-0ad9-4ff0-9137-e4dc800cb42a","ref_index":1,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2001,"title":"Computers and Geoscience 27, 77-83 (2001)","work_id":"7d114c05-79c2-406d-8401-4239f144baca","ref_index":2,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2000,"title":"In: Game Developers Conference: Advanced OpenGL (2000)","work_id":"664197d0-4b31-40b6-ac85-7bf6e1905e39","ref_index":3,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2013,"title":"https://github","work_id":"76e09eff-ce7c-4134-acd1-68b825934cae","ref_index":4,"cited_arxiv_id":"","is_internal_anchor":false}],"resolved_work":4,"snapshot_sha256":"1a1f40205bff18fa2d7c9914c3e7ec9e4525a8ba9865eb99b7b1c387fddc93fe","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}