[{"author":[{"full_name":"Sperl, Georg","first_name":"Georg","last_name":"Sperl","id":"4DD40360-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Rahul","last_name":"Narain","full_name":"Narain, Rahul"},{"orcid":"0000-0001-6646-5546","id":"3C61F1D2-F248-11E8-B48F-1D18A9856A87","last_name":"Wojtan","first_name":"Christopher J","full_name":"Wojtan, Christopher J"}],"related_material":{"record":[{"relation":"dissertation_contains","status":"public","id":"12358"},{"status":"public","relation":"software","id":"9327"}],"link":[{"description":"News on IST Webpage","relation":"press_release","url":"https://ist.ac.at/en/news/knitting-virtual-yarn/"}]},"date_updated":"2023-08-10T14:24:36Z","date_created":"2021-08-08T22:01:27Z","volume":40,"year":"2021","acknowledgement":"We wish to thank the anonymous reviewers and the members of the Visual Computing Group at IST Austria for their valuable feedback. We also thank Seddi Labs for providing the garment model with fold-over seams.\r\nThis research was supported by the Scientific Service Units (SSU) of IST Austria through resources provided by Scientific\r\nComputing. This project has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme under grant agreement No. 638176. Rahul Narain is supported by a Pankaj Gupta Young Faculty Fellowship and a gift from Adobe Inc.","publication_status":"published","department":[{"_id":"GradSch"},{"_id":"ChWo"}],"publisher":"Association for Computing Machinery","ec_funded":1,"article_number":"168","doi":"10.1145/3450626.3459816","acknowledged_ssus":[{"_id":"ScienComp"}],"language":[{"iso":"eng"}],"external_id":{"isi":["000674930900132"]},"oa":1,"main_file_link":[{"open_access":"1","url":"https://doi.org/10.1145/3450626.3459816"}],"isi":1,"quality_controlled":"1","project":[{"grant_number":"638176","_id":"2533E772-B435-11E9-9278-68D0E5697425","name":"Efficient Simulation of Natural Phenomena at Extremely Large Scales","call_identifier":"H2020"}],"month":"08","publication_identifier":{"issn":["07300301"],"eissn":["15577368"]},"oa_version":"Published Version","_id":"9818","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","status":"public","title":"Mechanics-aware deformation of yarn pattern geometry","intvolume":" 40","abstract":[{"lang":"eng","text":"Triangle mesh-based simulations are able to produce satisfying animations of knitted and woven cloth; however, they lack the rich geometric detail of yarn-level simulations. Naive texturing approaches do not consider yarn-level physics, while full yarn-level simulations may become prohibitively expensive for large garments. We propose a method to animate yarn-level cloth geometry on top of an underlying deforming mesh in a mechanics-aware fashion. Using triangle strains to interpolate precomputed yarn geometry, we are able to reproduce effects such as knit loops tightening under stretching. In combination with precomputed mesh animation or real-time mesh simulation, our method is able to animate yarn-level cloth in real-time at large scales."}],"issue":"4","type":"journal_article","date_published":"2021-08-01T00:00:00Z","publication":"ACM Transactions on Graphics","citation":{"ama":"Sperl G, Narain R, Wojtan C. Mechanics-aware deformation of yarn pattern geometry. ACM Transactions on Graphics. 2021;40(4). doi:10.1145/3450626.3459816","ista":"Sperl G, Narain R, Wojtan C. 2021. Mechanics-aware deformation of yarn pattern geometry. ACM Transactions on Graphics. 40(4), 168.","ieee":"G. Sperl, R. Narain, and C. Wojtan, “Mechanics-aware deformation of yarn pattern geometry,” ACM Transactions on Graphics, vol. 40, no. 4. Association for Computing Machinery, 2021.","apa":"Sperl, G., Narain, R., & Wojtan, C. (2021). Mechanics-aware deformation of yarn pattern geometry. ACM Transactions on Graphics. Association for Computing Machinery. https://doi.org/10.1145/3450626.3459816","mla":"Sperl, Georg, et al. “Mechanics-Aware Deformation of Yarn Pattern Geometry.” ACM Transactions on Graphics, vol. 40, no. 4, 168, Association for Computing Machinery, 2021, doi:10.1145/3450626.3459816.","short":"G. Sperl, R. Narain, C. Wojtan, ACM Transactions on Graphics 40 (2021).","chicago":"Sperl, Georg, Rahul Narain, and Chris Wojtan. “Mechanics-Aware Deformation of Yarn Pattern Geometry.” ACM Transactions on Graphics. Association for Computing Machinery, 2021. https://doi.org/10.1145/3450626.3459816."},"article_type":"original","day":"01","article_processing_charge":"Yes (in subscription journal)","scopus_import":"1"},{"file":[{"file_name":"MADYPG_extra_data.zip","access_level":"open_access","file_size":802586232,"content_type":"application/zip","creator":"gsperl","relation":"main_file","file_id":"9328","date_created":"2021-04-16T14:15:12Z","date_updated":"2021-04-16T14:15:12Z","checksum":"0324cb519273371708743f3282e7c081","success":1},{"date_updated":"2021-04-26T09:33:44Z","date_created":"2021-04-26T09:33:44Z","checksum":"4c224551adf852b136ec21a4e13f0c1b","relation":"main_file","file_id":"9353","content_type":"application/gzip","file_size":64962865,"creator":"pub-gitlab-bot","file_name":"MADYPG.zip","access_level":"open_access"}],"date_updated":"2023-08-10T14:24:36Z","date_created":"2021-04-16T14:26:19Z","related_material":{"record":[{"id":"9818","status":"public","relation":"used_for_analysis_in"}]},"gitlab_url":"https://git.ist.ac.at/gsperl/MADYPG","author":[{"full_name":"Sperl, Georg","id":"4DD40360-F248-11E8-B48F-1D18A9856A87","first_name":"Georg","last_name":"Sperl"},{"first_name":"Rahul","last_name":"Narain","full_name":"Narain, Rahul"},{"id":"3C61F1D2-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-6646-5546","first_name":"Christopher J","last_name":"Wojtan","full_name":"Wojtan, Christopher J"}],"publisher":"IST Austria","department":[{"_id":"GradSch"},{"_id":"ChWo"}],"status":"public","title":"Mechanics-Aware Deformation of Yarn Pattern Geometry (Additional Animation/Model Data)","ddc":["005"],"_id":"9327","user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","year":"2021","license":"https://opensource.org/licenses/MIT","file_date_updated":"2021-04-26T09:33:44Z","abstract":[{"lang":"eng","text":"This archive contains the missing sweater mesh animations and displacement models for the code of \"Mechanics-Aware Deformation of Yarn Pattern Geometry\"\r\n\r\nCode Repository: https://git.ist.ac.at/gsperl/MADYPG"}],"gitlab_commit_id":"6a77e7e22769230ae5f5edaa090fb4b828e57573","type":"software","date_published":"2021-05-01T00:00:00Z","doi":"10.15479/AT:ISTA:9327","oa":1,"tmp":{"name":"The MIT License","legal_code_url":"https://opensource.org/licenses/MIT","short":"MIT"},"citation":{"ista":"Sperl G, Narain R, Wojtan C. 2021. Mechanics-Aware Deformation of Yarn Pattern Geometry (Additional Animation/Model Data), IST Austria, 10.15479/AT:ISTA:9327.","ieee":"G. Sperl, R. Narain, and C. Wojtan, “Mechanics-Aware Deformation of Yarn Pattern Geometry (Additional Animation/Model Data).” IST Austria, 2021.","apa":"Sperl, G., Narain, R., & Wojtan, C. (2021). Mechanics-Aware Deformation of Yarn Pattern Geometry (Additional Animation/Model Data). IST Austria. https://doi.org/10.15479/AT:ISTA:9327","ama":"Sperl G, Narain R, Wojtan C. Mechanics-Aware Deformation of Yarn Pattern Geometry (Additional Animation/Model Data). 2021. doi:10.15479/AT:ISTA:9327","chicago":"Sperl, Georg, Rahul Narain, and Chris Wojtan. “Mechanics-Aware Deformation of Yarn Pattern Geometry (Additional Animation/Model Data).” IST Austria, 2021. https://doi.org/10.15479/AT:ISTA:9327.","mla":"Sperl, Georg, et al. Mechanics-Aware Deformation of Yarn Pattern Geometry (Additional Animation/Model Data). IST Austria, 2021, doi:10.15479/AT:ISTA:9327.","short":"G. Sperl, R. Narain, C. Wojtan, (2021)."},"has_accepted_license":"1","month":"05"},{"month":"07","publication_identifier":{"issn":["07300301"],"eissn":["15577368"]},"acknowledged_ssus":[{"_id":"ScienComp"}],"language":[{"iso":"eng"}],"doi":"10.1145/3386569.3392466","isi":1,"quality_controlled":"1","project":[{"call_identifier":"H2020","name":"Efficient Simulation of Natural Phenomena at Extremely Large Scales","_id":"2533E772-B435-11E9-9278-68D0E5697425","grant_number":"638176"},{"grant_number":"665385","_id":"2564DBCA-B435-11E9-9278-68D0E5697425","name":"International IST Doctoral Program","call_identifier":"H2020"}],"external_id":{"isi":["000583700300038"]},"oa":1,"file_date_updated":"2020-09-21T07:51:44Z","ec_funded":1,"article_number":"65","date_updated":"2023-08-22T09:28:27Z","date_created":"2020-09-20T22:01:37Z","volume":39,"author":[{"full_name":"Skrivan, Tomas","last_name":"Skrivan","first_name":"Tomas","id":"486A5A46-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Soderstrom, Andreas","last_name":"Soderstrom","first_name":"Andreas"},{"full_name":"Johansson, John","last_name":"Johansson","first_name":"John"},{"last_name":"Sprenger","first_name":"Christoph","full_name":"Sprenger, Christoph"},{"last_name":"Museth","first_name":"Ken","full_name":"Museth, Ken"},{"full_name":"Wojtan, Christopher J","last_name":"Wojtan","first_name":"Christopher J","orcid":"0000-0001-6646-5546","id":"3C61F1D2-F248-11E8-B48F-1D18A9856A87"}],"publication_status":"published","department":[{"_id":"ChWo"}],"publisher":"Association for Computing Machinery","year":"2020","acknowledgement":"We wish to thank the anonymous reviewers and the members of the Visual Computing Group at IST Austria for their valuable feedback. This research was supported by the Scientific Service Units (SSU) of IST Austria through resources provided by Scientific Computing. This project has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme under grant agreement No. 638176 and Marie SkłodowskaCurie Grant Agreement No. 665385.","day":"08","article_processing_charge":"No","has_accepted_license":"1","scopus_import":"1","date_published":"2020-07-08T00:00:00Z","article_type":"original","publication":"ACM Transactions on Graphics","citation":{"short":"T. Skrivan, A. Soderstrom, J. Johansson, C. Sprenger, K. Museth, C. Wojtan, ACM Transactions on Graphics 39 (2020).","mla":"Skrivan, Tomas, et al. “Wave Curves: Simulating Lagrangian Water Waves on Dynamically Deforming Surfaces.” ACM Transactions on Graphics, vol. 39, no. 4, 65, Association for Computing Machinery, 2020, doi:10.1145/3386569.3392466.","chicago":"Skrivan, Tomas, Andreas Soderstrom, John Johansson, Christoph Sprenger, Ken Museth, and Chris Wojtan. “Wave Curves: Simulating Lagrangian Water Waves on Dynamically Deforming Surfaces.” ACM Transactions on Graphics. Association for Computing Machinery, 2020. https://doi.org/10.1145/3386569.3392466.","ama":"Skrivan T, Soderstrom A, Johansson J, Sprenger C, Museth K, Wojtan C. Wave curves: Simulating Lagrangian water waves on dynamically deforming surfaces. ACM Transactions on Graphics. 2020;39(4). doi:10.1145/3386569.3392466","ieee":"T. Skrivan, A. Soderstrom, J. Johansson, C. Sprenger, K. Museth, and C. Wojtan, “Wave curves: Simulating Lagrangian water waves on dynamically deforming surfaces,” ACM Transactions on Graphics, vol. 39, no. 4. Association for Computing Machinery, 2020.","apa":"Skrivan, T., Soderstrom, A., Johansson, J., Sprenger, C., Museth, K., & Wojtan, C. (2020). Wave curves: Simulating Lagrangian water waves on dynamically deforming surfaces. ACM Transactions on Graphics. Association for Computing Machinery. https://doi.org/10.1145/3386569.3392466","ista":"Skrivan T, Soderstrom A, Johansson J, Sprenger C, Museth K, Wojtan C. 2020. Wave curves: Simulating Lagrangian water waves on dynamically deforming surfaces. ACM Transactions on Graphics. 39(4), 65."},"abstract":[{"text":"We propose a method to enhance the visual detail of a water surface simulation. Our method works as a post-processing step which takes a simulation as input and increases its apparent resolution by simulating many detailed Lagrangian water waves on top of it. We extend linear water wave theory to work in non-planar domains which deform over time, and we discretize the theory using Lagrangian wave packets attached to spline curves. The method is numerically stable and trivially parallelizable, and it produces high frequency ripples with dispersive wave-like behaviors customized to the underlying fluid simulation.","lang":"eng"}],"issue":"4","type":"journal_article","oa_version":"Published Version","file":[{"file_name":"2020_ACM_Skrivan.pdf","access_level":"open_access","content_type":"application/pdf","file_size":20223953,"creator":"dernst","relation":"main_file","file_id":"8541","date_created":"2020-09-21T07:51:44Z","date_updated":"2020-09-21T07:51:44Z","checksum":"c3a680893f01cc4a9e961ff0a4cfa12f","success":1}],"status":"public","ddc":["000"],"title":"Wave curves: Simulating Lagrangian water waves on dynamically deforming surfaces","intvolume":" 39","_id":"8535","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8"},{"month":"05","publication_identifier":{"issn":["0167-7055"],"eissn":["1467-8659"]},"acknowledged_ssus":[{"_id":"ScienComp"}],"language":[{"iso":"eng"}],"doi":"10.1111/cgf.13914","quality_controlled":"1","isi":1,"project":[{"grant_number":"638176","_id":"2533E772-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","name":"Efficient Simulation of Natural Phenomena at Extremely Large Scales"}],"external_id":{"isi":["000548709600008"]},"oa":1,"file_date_updated":"2020-11-23T09:05:13Z","ec_funded":1,"date_updated":"2023-09-05T16:00:13Z","date_created":"2020-11-17T09:35:10Z","volume":39,"author":[{"first_name":"Camille","last_name":"Schreck","id":"2B14B676-F248-11E8-B48F-1D18A9856A87","full_name":"Schreck, Camille"},{"full_name":"Wojtan, Christopher J","last_name":"Wojtan","first_name":"Christopher J","orcid":"0000-0001-6646-5546","id":"3C61F1D2-F248-11E8-B48F-1D18A9856A87"}],"publication_status":"published","publisher":"Wiley","department":[{"_id":"ChWo"}],"acknowledgement":"We wish to thank the anonymous reviewers and the members of the Visual Computing Group at IST Austria for their valuable feedback. This research was supported by the Scientific Service Units (SSU) of IST Austria through resources provided by Scientific Computing. We would also like to thank Joseph Teran and Chenfanfu Jiang for the helpful discussions.\r\nThis project has received funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme under grant agreement No. 638176.","year":"2020","day":"01","article_processing_charge":"No","has_accepted_license":"1","keyword":["Computer Networks and Communications"],"scopus_import":"1","date_published":"2020-05-01T00:00:00Z","article_type":"original","page":"89-99","publication":"Computer Graphics Forum","citation":{"ista":"Schreck C, Wojtan C. 2020. A practical method for animating anisotropic elastoplastic materials. Computer Graphics Forum. 39(2), 89–99.","apa":"Schreck, C., & Wojtan, C. (2020). A practical method for animating anisotropic elastoplastic materials. Computer Graphics Forum. Wiley. https://doi.org/10.1111/cgf.13914","ieee":"C. Schreck and C. Wojtan, “A practical method for animating anisotropic elastoplastic materials,” Computer Graphics Forum, vol. 39, no. 2. Wiley, pp. 89–99, 2020.","ama":"Schreck C, Wojtan C. A practical method for animating anisotropic elastoplastic materials. Computer Graphics Forum. 2020;39(2):89-99. doi:10.1111/cgf.13914","chicago":"Schreck, Camille, and Chris Wojtan. “A Practical Method for Animating Anisotropic Elastoplastic Materials.” Computer Graphics Forum. Wiley, 2020. https://doi.org/10.1111/cgf.13914.","mla":"Schreck, Camille, and Chris Wojtan. “A Practical Method for Animating Anisotropic Elastoplastic Materials.” Computer Graphics Forum, vol. 39, no. 2, Wiley, 2020, pp. 89–99, doi:10.1111/cgf.13914.","short":"C. Schreck, C. Wojtan, Computer Graphics Forum 39 (2020) 89–99."},"abstract":[{"lang":"eng","text":"This paper introduces a simple method for simulating highly anisotropic elastoplastic material behaviors like the dissolution of fibrous phenomena (splintering wood, shredding bales of hay) and materials composed of large numbers of irregularly‐shaped bodies (piles of twigs, pencils, or cards). We introduce a simple transformation of the anisotropic problem into an equivalent isotropic one, and we solve this new “fictitious” isotropic problem using an existing simulator based on the material point method. Our approach results in minimal changes to existing simulators, and it allows us to re‐use popular isotropic plasticity models like the Drucker‐Prager yield criterion instead of inventing new anisotropic plasticity models for every phenomenon we wish to simulate."}],"issue":"2","type":"journal_article","file":[{"access_level":"open_access","file_name":"2020_poff_revisited.pdf","file_size":38969122,"content_type":"application/pdf","creator":"dernst","relation":"main_file","file_id":"8796","checksum":"7605f605acd84d0942b48bc7a1c2d72e","success":1,"date_updated":"2020-11-23T09:05:13Z","date_created":"2020-11-23T09:05:13Z"}],"oa_version":"Submitted Version","status":"public","title":"A practical method for animating anisotropic elastoplastic materials","ddc":["000"],"intvolume":" 39","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","_id":"8765"},{"external_id":{"isi":["000532295600014"],"pmid":["30507534"]},"oa":1,"quality_controlled":"1","isi":1,"doi":"10.1109/TVCG.2018.2883628","acknowledged_ssus":[{"_id":"ScienComp"}],"language":[{"iso":"eng"}],"month":"06","publication_identifier":{"eissn":["19410506"],"issn":["10772626"]},"acknowledgement":"This work was partially supported by JSPS Grant-in-Aid forYoung Scientists (Start-up) 16H07410, the ERC StartingGrantsrealFlow(StG-2015-637014) andBigSplash(StG-2014-638176). This research was supported by the Scientific Ser-vice Units (SSU) of IST Austria through resources providedby Scientific Computing. We would like to express my grati-tude to Nobuyuki Umetani and Tomas Skrivan for insight-ful discussion.","year":"2020","pmid":1,"publication_status":"published","department":[{"_id":"ChWo"}],"publisher":"IEEE","author":[{"full_name":"Hikaru, Ibayashi","first_name":"Ibayashi","last_name":"Hikaru"},{"id":"3C61F1D2-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-6646-5546","first_name":"Christopher J","last_name":"Wojtan","full_name":"Wojtan, Christopher J"},{"full_name":"Thuerey, Nils","first_name":"Nils","last_name":"Thuerey"},{"first_name":"Takeo","last_name":"Igarashi","full_name":"Igarashi, Takeo"},{"first_name":"Ryoichi","last_name":"Ando","full_name":"Ando, Ryoichi"}],"date_updated":"2023-09-18T09:30:01Z","date_created":"2018-12-16T22:59:21Z","volume":26,"file_date_updated":"2020-10-08T08:34:53Z","publication":"IEEE Transactions on Visualization and Computer Graphics","citation":{"chicago":"Hikaru, Ibayashi, Chris Wojtan, Nils Thuerey, Takeo Igarashi, and Ryoichi Ando. “Simulating Liquids on Dynamically Warping Grids.” IEEE Transactions on Visualization and Computer Graphics. IEEE, 2020. https://doi.org/10.1109/TVCG.2018.2883628.","mla":"Hikaru, Ibayashi, et al. “Simulating Liquids on Dynamically Warping Grids.” IEEE Transactions on Visualization and Computer Graphics, vol. 26, no. 6, IEEE, 2020, pp. 2288–302, doi:10.1109/TVCG.2018.2883628.","short":"I. Hikaru, C. Wojtan, N. Thuerey, T. Igarashi, R. Ando, IEEE Transactions on Visualization and Computer Graphics 26 (2020) 2288–2302.","ista":"Hikaru I, Wojtan C, Thuerey N, Igarashi T, Ando R. 2020. Simulating liquids on dynamically warping grids. IEEE Transactions on Visualization and Computer Graphics. 26(6), 2288–2302.","ieee":"I. Hikaru, C. Wojtan, N. Thuerey, T. Igarashi, and R. Ando, “Simulating liquids on dynamically warping grids,” IEEE Transactions on Visualization and Computer Graphics, vol. 26, no. 6. IEEE, pp. 2288–2302, 2020.","apa":"Hikaru, I., Wojtan, C., Thuerey, N., Igarashi, T., & Ando, R. (2020). Simulating liquids on dynamically warping grids. IEEE Transactions on Visualization and Computer Graphics. IEEE. https://doi.org/10.1109/TVCG.2018.2883628","ama":"Hikaru I, Wojtan C, Thuerey N, Igarashi T, Ando R. Simulating liquids on dynamically warping grids. IEEE Transactions on Visualization and Computer Graphics. 2020;26(6):2288-2302. doi:10.1109/TVCG.2018.2883628"},"article_type":"original","page":"2288-2302","date_published":"2020-06-01T00:00:00Z","scopus_import":"1","day":"01","article_processing_charge":"No","has_accepted_license":"1","_id":"5681","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","ddc":["006"],"status":"public","title":"Simulating liquids on dynamically warping grids","intvolume":" 26","file":[{"access_level":"open_access","file_name":"preprint.pdf","creator":"wojtan","content_type":"application/pdf","file_size":21910098,"file_id":"8626","relation":"main_file","success":1,"checksum":"8d4c55443a0ee335bb5bb652de503042","date_updated":"2020-10-08T08:34:53Z","date_created":"2020-10-08T08:34:53Z"}],"oa_version":"Submitted Version","type":"journal_article","abstract":[{"text":"We introduce dynamically warping grids for adaptive liquid simulation. Our primary contributions are a strategy for dynamically deforming regular grids over the course of a simulation and a method for efficiently utilizing these deforming grids for liquid simulation. Prior work has shown that unstructured grids are very effective for adaptive fluid simulations. However, unstructured grids often lead to complicated implementations and a poor cache hit rate due to inconsistent memory access. Regular grids, on the other hand, provide a fast, fixed memory access pattern and straightforward implementation. Our method combines the advantages of both: we leverage the simplicity of regular grids while still achieving practical and controllable spatial adaptivity. We demonstrate that our method enables adaptive simulations that are fast, flexible, and robust to null-space issues. At the same time, our method is simple to implement and takes advantage of existing highly-tuned algorithms.","lang":"eng"}],"issue":"6"}]