{"abstract":[{"lang":"eng","text":"We introduce a novel technique to automatically decompose an input object’s volume into a set of parts that can be represented by two opposite height fields. Such decomposition enables the manufacturing of individual parts using two-piece reusable rigid molds. Our decomposition strategy relies on a new energy formulation that utilizes a pre-computed signal on the mesh volume representing the accessibility for a predefined set of extraction directions. Thanks to this novel formulation, our method allows for efficient optimization of a fabrication-aware partitioning of volumes in a completely\r\nautomatic way. We demonstrate the efficacy of our approach by generating valid volume partitionings for a wide range of complex objects and physically reproducing several of them."}],"has_accepted_license":"1","day":"01","publication_status":"published","date_created":"2021-10-27T07:08:19Z","intvolume":"        40","ddc":["000"],"issue":"6","volume":40,"citation":{"ieee":"T. Alderighi, L. Malomo, B. Bickel, P. Cignoni, and N. Pietroni, “Volume decomposition for two-piece rigid casting,” <i>ACM Transactions on Graphics</i>, vol. 40, no. 6. ACM, 2021.","chicago":"Alderighi, Thomas, Luigi Malomo, Bernd Bickel, Paolo Cignoni, and Nico Pietroni. “Volume Decomposition for Two-Piece Rigid Casting.” <i>ACM Transactions on Graphics</i>. ACM, 2021. <a href=\"https://doi.org/10.1145/3478513.3480555\">https://doi.org/10.1145/3478513.3480555</a>.","mla":"Alderighi, Thomas, et al. “Volume Decomposition for Two-Piece Rigid Casting.” <i>ACM Transactions on Graphics</i>, vol. 40, no. 6, 272, ACM, 2021, doi:<a href=\"https://doi.org/10.1145/3478513.3480555\">10.1145/3478513.3480555</a>.","apa":"Alderighi, T., Malomo, L., Bickel, B., Cignoni, P., &#38; Pietroni, N. (2021). Volume decomposition for two-piece rigid casting. <i>ACM Transactions on Graphics</i>. ACM. <a href=\"https://doi.org/10.1145/3478513.3480555\">https://doi.org/10.1145/3478513.3480555</a>","ama":"Alderighi T, Malomo L, Bickel B, Cignoni P, Pietroni N. Volume decomposition for two-piece rigid casting. <i>ACM Transactions on Graphics</i>. 2021;40(6). doi:<a href=\"https://doi.org/10.1145/3478513.3480555\">10.1145/3478513.3480555</a>","ista":"Alderighi T, Malomo L, Bickel B, Cignoni P, Pietroni N. 2021. Volume decomposition for two-piece rigid casting. ACM Transactions on Graphics. 40(6), 272.","short":"T. Alderighi, L. Malomo, B. Bickel, P. Cignoni, N. Pietroni, ACM Transactions on Graphics 40 (2021)."},"month":"12","article_processing_charge":"No","_id":"10184","article_type":"original","language":[{"iso":"eng"}],"type":"journal_article","quality_controlled":"1","project":[{"_id":"24F9549A-B435-11E9-9278-68D0E5697425","name":"MATERIALIZABLE: Intelligent fabrication-oriented Computational Design and Modeling","grant_number":"715767","call_identifier":"H2020"}],"file_date_updated":"2021-10-27T07:08:07Z","ec_funded":1,"article_number":"272","oa_version":"Submitted Version","acknowledgement":"The authors thank Marco Callieri for all his precious help with the resin casts. The models used in the paper are courtesy of the Stanford 3D Scanning Repository, the AIM@SHAPE Shape Repository, and Thingi10K Repository. The research was partially funded by the European Research Council (ERC) MATERIALIZABLE: Intelligent fabrication-oriented computational design and modeling (grant no. 715767).","publisher":"ACM","file":[{"date_created":"2021-10-27T07:08:07Z","file_name":"rigidmolds-authorversion.pdf","file_id":"10185","relation":"main_file","access_level":"open_access","date_updated":"2021-10-27T07:08:07Z","file_size":107708317,"content_type":"application/pdf","checksum":"384ece7a9ad1026787ba9560b04336d5","creator":"bbickel"}],"date_published":"2021-12-01T00:00:00Z","title":"Volume decomposition for two-piece rigid casting","user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","department":[{"_id":"BeBi"}],"author":[{"last_name":"Alderighi","full_name":"Alderighi, Thomas","first_name":"Thomas"},{"first_name":"Luigi","full_name":"Malomo, Luigi","last_name":"Malomo"},{"last_name":"Bickel","id":"49876194-F248-11E8-B48F-1D18A9856A87","full_name":"Bickel, Bernd","orcid":"0000-0001-6511-9385","first_name":"Bernd"},{"first_name":"Paolo","full_name":"Cignoni, Paolo","last_name":"Cignoni"},{"first_name":"Nico","full_name":"Pietroni, Nico","last_name":"Pietroni"}],"publication_identifier":{"issn":["0730-0301"],"eissn":["1557-7368 "]},"status":"public","publication":"ACM Transactions on Graphics","main_file_link":[{"open_access":"1","url":"http://vcg.isti.cnr.it/Publications/2021/AMBCP21"}],"date_updated":"2021-12-03T07:31:29Z","oa":1,"doi":"10.1145/3478513.3480555","year":"2021"}