{"created":"2025-01-18T22:47:23.331794+00:00","updated":"2025-01-23T01:18:45.673558+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00013251","sets":["581:729:730"]},"path":["730"],"owner":"1","recid":"13251","title":["仮想彫刻-仮想空間における対話型形状生成の一手法"],"pubdate":{"attribute_name":"公開日","attribute_value":"1997-12-15"},"_buckets":{"deposit":"c2ad0e6a-e5a2-4b2c-8c0f-5ee27ea970d2"},"_deposit":{"id":"13251","pid":{"type":"depid","value":"13251","revision_id":0},"owners":[1],"status":"published","created_by":1},"item_title":"仮想彫刻-仮想空間における対話型形状生成の一手法","author_link":["0","0"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"仮想彫刻-仮想空間における対話型形状生成の一手法"},{"subitem_title":"Virtual Sculpturing : A Method of Interactive Modeling in Virtual Space","subitem_title_language":"en"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"論文","subitem_subject_scheme":"Other"}]},"item_type_id":"2","publish_date":"1997-12-15","item_2_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"名古屋大学大学院工学研究科"},{"subitem_text_value":"名古屋大学情報処理教育センター"},{"subitem_text_value":"名古屋大学大学院工学研究科"},{"subitem_text_value":"名古屋大学情報文化学部"}]},"item_2_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Graduate of Engineering, Nagoya University","subitem_text_language":"en"},{"subitem_text_value":"Education Center for Information Processing, Nagoya University","subitem_text_language":"en"},{"subitem_text_value":"Graduated of Engineering, Nagoya University","subitem_text_language":"en"},{"subitem_text_value":"School of Informatics and Sciences, Nagoya University","subitem_text_language":"en"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"publish_status":"0","weko_shared_id":-1,"item_file_price":{"attribute_name":"Billing file","attribute_type":"file","attribute_value_mlt":[{"url":{"url":"https://ipsj.ixsq.nii.ac.jp/record/13251/files/IPSJ-JNL3812011.pdf"},"date":[{"dateType":"Available","dateValue":"1999-12-15"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-JNL3812011.pdf","filesize":[{"value":"2.7 MB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"660","billingrole":"5"},{"tax":["include_tax"],"price":"330","billingrole":"6"},{"tax":["include_tax"],"price":"0","billingrole":"8"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"949fd17f-a450-4df1-82d4-7a0b4e7df299","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 1997 by the Information Processing Society of Japan"}]},"item_2_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"水野, 慎士"},{"creatorName":"岡田, 稔"},{"creatorName":"鳥脇, 純一郎"},{"creatorName":"横井, 茂樹"}],"nameIdentifiers":[{}]}]},"item_2_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Shinji, Mizuno","creatorNameLang":"en"},{"creatorName":"Minoru, Okada","creatorNameLang":"en"},{"creatorName":"Jun-Ichiro, Toriwaki","creatorNameLang":"en"},{"creatorName":"Shigeki, Yokoi","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_2_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00116647","subitem_source_identifier_type":"NCID"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourceuri":"http://purl.org/coar/resource_type/c_6501","resourcetype":"journal article"}]},"item_2_source_id_11":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1882-7764","subitem_source_identifier_type":"ISSN"}]},"item_2_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"本論文では,仮想空間内の素材に対して彫刻をするような感覚で曲面多面体のモデリングを行うための一手法について検討する.ユーザは楕円体で定義された仮想彫刻刀をマウスを使って操作し,彫刻素材を削り取る,または付け加えることができる.実際に彫刻をしている感覚での操作を実現するためには,彫刻操作に応じて瞬時に表面形状が変化する必要があるが,そのために本手法では交点リストを用いることによりこれを実現している.また仮想彫刻刀を楕円体で定義することによって,表面形状が実際に木を彫刻したような雰囲気を持つことを実現している.本手法で作成した彫刻作品の形状は平面または2次曲面によるCSG表現で記述され,それは彫刻操作ごとに自動生成される.そして光線追跡法を用いれば反射や屈折を考慮した高品質な画像生成が可能である。また彫刻操作中の視点変更の際には高速に彫刻物体の画像を生成する必要があるが,彫刻履歴によって交点リストを並べ替える手法によれば,光線追跡法に比べてかなり高速に任意の視点からの画像を生成可能であることが確かめられた。","subitem_description_type":"Other"}]},"item_2_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"In this paper we studied a virtual sculpturing to form objects with curved surfaces as if we are sculpturing them.A user can operate a virtual graver,and can remove or attach arbitrary shapes of ellipsoids from a material.A surface of the solid object needs to be changed in every cutting operation in real time for virtual sculpture,and lists of the intersecting points enable it.And the graved solid object looks like a real wooden sculpture by using a virtual grver with the shape of an ellipsoid.In this system,the shape of a graved solid object is described with the CSG model by planes or quadratic surfaces,and this expression is produced automatically in each cutting operation.We can generate a high quality image by ray tracing.It is needed to generate an image of a graved solid object quickly in changing a view point.We confirmed that we could generate the image much faster by using a sculpture record and by renewing lists of intersecting points than by ray tracing.","subitem_description_type":"Other"}]},"item_2_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"2516","bibliographic_titles":[{"bibliographic_title":"情報処理学会論文誌"}],"bibliographicPageStart":"2509","bibliographicIssueDates":{"bibliographicIssueDate":"1997-12-15","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"12","bibliographicVolumeNumber":"38"}]},"relation_version_is_last":true,"item_2_alternative_title_2":{"attribute_name":"その他タイトル","attribute_value_mlt":[{"subitem_alternative_title":"コンピュータグラフィクス"}]},"weko_creator_id":"1"},"id":13251,"links":{}}