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We facilitate algorithmic synthesis of 3D models of man-made shapes which combines user-specified style, described via an<jats:italic>exemplar<\/jats:italic>shape, and functionality, encoded by a functionally different<jats:italic>target<\/jats:italic>shape. Our method automatically transfers the style of the exemplar to the target, creating the desired combination. The main challenge in performing cross-functional style transfer is to implicitly separate an object's style from its function: while stylistically the output shapes should be as close as possible to the exemplar, their original functionality and structure, as encoded by the target, should be strictly preserved. Recent literature point to the presence of similarly shaped, salient<jats:italic>geometric elements<\/jats:italic>as a main indicator of stylistic similarity between 3D shapes. We therefore transfer the exemplar style to the target via a sequence of element-level operations. We allow only<jats:italic>compatible<\/jats:italic>operations, ones that do not affect the target functionality. To this end, we introduce a cross-structural element compatibility metric that estimates the impact of each operation on the edited shape. Our metric is based on the global context and coarse geometry of evaluated elements, and is trained on databases of 3D objects. We use this metric to cast style transfer as a tabu search, which incrementally updates the target shape using compatible operations, progressively increasing its style similarity to the exemplar while strictly maintaining its functionality at each step. We evaluate our framework across a range of man-made objects including furniture, light fixtures, and tableware, and perform a number of user studies confirming that it produces convincing outputs combining the desired style and function.<\/jats:p>","DOI":"10.1145\/2980179.2980237","type":"journal-article","created":{"date-parts":[[2016,11,11]],"date-time":"2016-11-11T17:02:54Z","timestamp":1478883774000},"page":"1-14","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":35,"title":["Functionality preserving shape style transfer"],"prefix":"10.1145","volume":"35","author":[{"given":"Zhaoliang","family":"Lun","sequence":"first","affiliation":[{"name":"University of Massachusetts Amherst"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Evangelos","family":"Kalogerakis","sequence":"additional","affiliation":[{"name":"University of Massachusetts Amherst"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rui","family":"Wang","sequence":"additional","affiliation":[{"name":"University of Massachusetts Amherst"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alla","family":"Sheffer","sequence":"additional","affiliation":[{"name":"University of British Columbia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"320","published-online":{"date-parts":[[2016,12,5]]},"reference":[{"key":"e_1_2_2_1_1","doi-asserted-by":"publisher","DOI":"10.1111\/cgf.12169"},{"key":"e_1_2_2_2_1","doi-asserted-by":"publisher","DOI":"10.1145\/1778765.1778841"},{"key":"e_1_2_2_3_1","doi-asserted-by":"publisher","DOI":"10.1145\/1102351.1102363"},{"key":"e_1_2_2_4_1","doi-asserted-by":"publisher","DOI":"10.1145\/2010324.1964930"},{"key":"e_1_2_2_5_1","doi-asserted-by":"crossref","unstructured":"Frey B. 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