--- _id: '1136' abstract: - lang: eng text: We propose an interactive sculpting system for seamlessly editing pre-computed animations of liquid, without the need for any resimulation. The input is a sequence of meshes without correspondences representing the liquid surface over time. Our method enables the efficient selection of consistent space-time parts of this animation, such as moving waves or droplets, which we call space-time features. Once selected, a feature can be copied, edited, or duplicated and then pasted back anywhere in space and time in the same or in another liquid animation sequence. Our method circumvents tedious user interactions by automatically computing the spatial and temporal ranges of the selected feature. We also provide space-time shape editing tools for non-uniform scaling, rotation, trajectory changes, and temporal editing to locally speed up or slow down motion. Using our tools, the user can edit and progressively refine any input simulation result, possibly using a library of precomputed space-time features extracted from other animations. In contrast to the trial-and-error loop usually required to edit animation results through the tuning of indirect simulation parameters, our method gives the user full control over the edited space-time behaviors. © 2016 Copyright held by the owner/author(s). acknowledgement: This work was partly supported by the starting grant BigSplash, as well as the advanced grant EXPRESSIVE from the European Research Council (ERC-2014-StG 638176 , and ERC-2011-ADG 20110209). article_number: '2994261' article_processing_charge: No author: - first_name: Pierre full_name: Manteaux, Pierre last_name: Manteaux - first_name: Ulysse full_name: Vimont, Ulysse last_name: Vimont - first_name: Christopher J full_name: Wojtan, Christopher J id: 3C61F1D2-F248-11E8-B48F-1D18A9856A87 last_name: Wojtan orcid: 0000-0001-6646-5546 - first_name: Damien full_name: Rohmer, Damien last_name: Rohmer - first_name: Marie full_name: Cani, Marie last_name: Cani citation: ama: 'Manteaux P, Vimont U, Wojtan C, Rohmer D, Cani M. Space-time sculpting of liquid animation. In: Proceedings of the 9th International Conference on Motion in Games . ACM; 2016. doi:10.1145/2994258.2994261' apa: 'Manteaux, P., Vimont, U., Wojtan, C., Rohmer, D., & Cani, M. (2016). Space-time sculpting of liquid animation. In Proceedings of the 9th International Conference on Motion in Games . San Francisco, CA, USA: ACM. https://doi.org/10.1145/2994258.2994261' chicago: Manteaux, Pierre, Ulysse Vimont, Chris Wojtan, Damien Rohmer, and Marie Cani. “Space-Time Sculpting of Liquid Animation.” In Proceedings of the 9th International Conference on Motion in Games . ACM, 2016. https://doi.org/10.1145/2994258.2994261. ieee: P. Manteaux, U. Vimont, C. Wojtan, D. Rohmer, and M. Cani, “Space-time sculpting of liquid animation,” in Proceedings of the 9th International Conference on Motion in Games , San Francisco, CA, USA, 2016. ista: 'Manteaux P, Vimont U, Wojtan C, Rohmer D, Cani M. 2016. Space-time sculpting of liquid animation. Proceedings of the 9th International Conference on Motion in Games . MIG: Motion in Games, 2994261.' mla: Manteaux, Pierre, et al. “Space-Time Sculpting of Liquid Animation.” Proceedings of the 9th International Conference on Motion in Games , 2994261, ACM, 2016, doi:10.1145/2994258.2994261. short: P. Manteaux, U. Vimont, C. Wojtan, D. Rohmer, M. Cani, in:, Proceedings of the 9th International Conference on Motion in Games , ACM, 2016. conference: end_date: 2016-10-12 location: San Francisco, CA, USA name: 'MIG: Motion in Games' start_date: 2016-10-10 date_created: 2018-12-11T11:50:20Z date_published: 2016-10-10T00:00:00Z date_updated: 2023-02-21T09:49:49Z day: '10' ddc: - '004' department: - _id: ChWo doi: 10.1145/2994258.2994261 ec_funded: 1 has_accepted_license: '1' language: - iso: eng main_file_link: - open_access: '1' url: https://hal.inria.fr/hal-01367181 month: '10' oa: 1 oa_version: Submitted Version project: - _id: 2533E772-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '638176' name: Efficient Simulation of Natural Phenomena at Extremely Large Scales publication: 'Proceedings of the 9th International Conference on Motion in Games ' publication_status: published publisher: ACM publist_id: '6222' quality_controlled: '1' scopus_import: '1' status: public title: Space-time sculpting of liquid animation type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2016' ... --- _id: '1141' abstract: - lang: eng text: In this paper we introduce the Multiobjective Optimization Hierarchic Genetic Strategy with maturing (MO-mHGS), a meta-algorithm that performs evolutionary optimization in a hierarchy of populations. The maturing mechanism improves growth and reduces redundancy. The performance of MO-mHGS with selected state-of-the-art multiobjective evolutionary algorithms as internal algorithms is analysed on benchmark problems and their modifications for which single fitness evaluation time depends on the solution accuracy. We compare the proposed algorithm with the Island Model Genetic Algorithm as well as with single-deme methods, and discuss the impact of internal algorithms on the MO-mHGS meta-algorithm. © 2016 Elsevier B.V. acknowledgement: The work presented in this paper was partially supported by Polish National Science Centre grant nos. DEC-2012/05/N/ST6/03433 and DEC-2011/03/B/ST6/01393. Radosław Łazarz was supported by Polish National Science Centre grant no. DEC-2013/10/M/ST6/00531. author: - first_name: Radosław full_name: Łazarz, Radosław last_name: Łazarz - first_name: Michał full_name: Idzik, Michał last_name: Idzik - first_name: Konrad full_name: Gądek, Konrad last_name: Gądek - first_name: Ewa P full_name: Gajda-Zagorska, Ewa P id: 47794CF0-F248-11E8-B48F-1D18A9856A87 last_name: Gajda-Zagorska citation: ama: Łazarz R, Idzik M, Gądek K, Gajda-Zagorska EP. Hierarchic genetic strategy with maturing as a generic tool for multiobjective optimization. Journal of Computational Science. 2016;17(1):249-260. doi:10.1016/j.jocs.2016.03.004 apa: Łazarz, R., Idzik, M., Gądek, K., & Gajda-Zagorska, E. P. (2016). Hierarchic genetic strategy with maturing as a generic tool for multiobjective optimization. Journal of Computational Science. Elsevier. https://doi.org/10.1016/j.jocs.2016.03.004 chicago: Łazarz, Radosław, Michał Idzik, Konrad Gądek, and Ewa P Gajda-Zagorska. “Hierarchic Genetic Strategy with Maturing as a Generic Tool for Multiobjective Optimization.” Journal of Computational Science. Elsevier, 2016. https://doi.org/10.1016/j.jocs.2016.03.004. ieee: R. Łazarz, M. Idzik, K. Gądek, and E. P. Gajda-Zagorska, “Hierarchic genetic strategy with maturing as a generic tool for multiobjective optimization,” Journal of Computational Science, vol. 17, no. 1. Elsevier, pp. 249–260, 2016. ista: Łazarz R, Idzik M, Gądek K, Gajda-Zagorska EP. 2016. Hierarchic genetic strategy with maturing as a generic tool for multiobjective optimization. Journal of Computational Science. 17(1), 249–260. mla: Łazarz, Radosław, et al. “Hierarchic Genetic Strategy with Maturing as a Generic Tool for Multiobjective Optimization.” Journal of Computational Science, vol. 17, no. 1, Elsevier, 2016, pp. 249–60, doi:10.1016/j.jocs.2016.03.004. short: R. Łazarz, M. Idzik, K. Gądek, E.P. Gajda-Zagorska, Journal of Computational Science 17 (2016) 249–260. date_created: 2018-12-11T11:50:22Z date_published: 2016-11-01T00:00:00Z date_updated: 2021-01-12T06:48:35Z day: '01' department: - _id: ChWo doi: 10.1016/j.jocs.2016.03.004 intvolume: ' 17' issue: '1' language: - iso: eng month: '11' oa_version: None page: 249 - 260 publication: Journal of Computational Science publication_status: published publisher: Elsevier publist_id: '6217' quality_controlled: '1' scopus_import: 1 status: public title: Hierarchic genetic strategy with maturing as a generic tool for multiobjective optimization type: journal_article user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 17 year: '2016' ... --- _id: '1363' abstract: - lang: eng text: When aiming to seamlessly integrate a fluid simulation into a larger scenario (like an open ocean), careful attention must be paid to boundary conditions. In particular, one must implement special "non-reflecting" boundary conditions, which dissipate out-going waves as they exit the simulation. Unfortunately, the state of the art in non-reflecting boundary conditions (perfectly-matched layers, or PMLs) only permits trivially simple inflow/outflow conditions, so there is no reliable way to integrate a fluid simulation into a more complicated environment like a stormy ocean or a turbulent river. This paper introduces the first method for combining nonreflecting boundary conditions based on PMLs with inflow/outflow boundary conditions that vary arbitrarily throughout space and time. Our algorithm is a generalization of stateof- the-art mean-flow boundary conditions in the computational fluid dynamics literature, and it allows for seamless integration of a fluid simulation into much more complicated environments. Our method also opens the door for previously-unseen postprocess effects like retroactively changing the location of solid obstacles, and locally increasing the visual detail of a pre-existing simulation. acknowledged_ssus: - _id: ScienComp acknowledgement: 'We thank the IST Austria Visual Computing group for helpful feedback throughout the project. ' alternative_title: - ACM Transactions on Graphics article_number: '96' author: - first_name: Morten full_name: Bojsen-Hansen, Morten id: 439F0C8C-F248-11E8-B48F-1D18A9856A87 last_name: Bojsen-Hansen orcid: 0000-0002-4417-3224 - first_name: Christopher J full_name: Wojtan, Christopher J id: 3C61F1D2-F248-11E8-B48F-1D18A9856A87 last_name: Wojtan orcid: 0000-0001-6646-5546 citation: ama: 'Bojsen-Hansen M, Wojtan C. Generalized non-reflecting boundaries for fluid re-simulation. In: Vol 35. ACM; 2016. doi:10.1145/2897824.2925963' apa: 'Bojsen-Hansen, M., & Wojtan, C. (2016). Generalized non-reflecting boundaries for fluid re-simulation (Vol. 35). Presented at the ACM SIGGRAPH, Anaheim, CA, USA: ACM. https://doi.org/10.1145/2897824.2925963' chicago: Bojsen-Hansen, Morten, and Chris Wojtan. “Generalized Non-Reflecting Boundaries for Fluid Re-Simulation,” Vol. 35. ACM, 2016. https://doi.org/10.1145/2897824.2925963. ieee: M. Bojsen-Hansen and C. Wojtan, “Generalized non-reflecting boundaries for fluid re-simulation,” presented at the ACM SIGGRAPH, Anaheim, CA, USA, 2016, vol. 35, no. 4. ista: Bojsen-Hansen M, Wojtan C. 2016. Generalized non-reflecting boundaries for fluid re-simulation. ACM SIGGRAPH, ACM Transactions on Graphics, vol. 35, 96. mla: Bojsen-Hansen, Morten, and Chris Wojtan. Generalized Non-Reflecting Boundaries for Fluid Re-Simulation. Vol. 35, no. 4, 96, ACM, 2016, doi:10.1145/2897824.2925963. short: M. Bojsen-Hansen, C. Wojtan, in:, ACM, 2016. conference: end_date: 2016-07-28 location: Anaheim, CA, USA name: ACM SIGGRAPH start_date: 2016-07-24 date_created: 2018-12-11T11:51:35Z date_published: 2016-07-11T00:00:00Z date_updated: 2023-02-21T10:36:12Z day: '11' ddc: - '000' department: - _id: ChWo doi: 10.1145/2897824.2925963 ec_funded: 1 file: - access_level: open_access checksum: 140b5532f0a2a006a0149cab7c73c17c content_type: application/pdf creator: system date_created: 2018-12-12T10:13:00Z date_updated: 2020-07-14T12:44:47Z file_id: '4981' file_name: IST-2016-631-v1+2_a96-bojsen-hansen.pdf file_size: 12422760 relation: main_file file_date_updated: 2020-07-14T12:44:47Z has_accepted_license: '1' intvolume: ' 35' issue: '4' language: - iso: eng month: '07' oa: 1 oa_version: Published Version project: - _id: 2533E772-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '638176' name: Efficient Simulation of Natural Phenomena at Extremely Large Scales publication_status: published publisher: ACM publist_id: '5879' pubrep_id: '631' quality_controlled: '1' status: public title: Generalized non-reflecting boundaries for fluid re-simulation tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: conference user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87 volume: 35 year: '2016' ... --- _id: '1361' abstract: - lang: eng text: We propose a novel surface-only technique for simulating incompressible, inviscid and uniform-density liquids with surface tension in three dimensions. The liquid surface is captured by a triangle mesh on which a Lagrangian velocity field is stored. Because advection of the velocity field may violate the incompressibility condition, we devise an orthogonal projection technique to remove the divergence while requiring the evaluation of only two boundary integrals. The forces of surface tension, gravity, and solid contact are all treated by a boundary element solve, allowing us to perform detailed simulations of a wide range of liquid phenomena, including waterbells, droplet and jet collisions, fluid chains, and crown splashes. alternative_title: - ACM Transactions on Graphics article_number: a78 author: - first_name: Fang full_name: Da, Fang last_name: Da - first_name: David full_name: Hahn, David id: 357A6A66-F248-11E8-B48F-1D18A9856A87 last_name: Hahn - first_name: Christopher full_name: Batty, Christopher last_name: Batty - first_name: Christopher J full_name: Wojtan, Christopher J id: 3C61F1D2-F248-11E8-B48F-1D18A9856A87 last_name: Wojtan orcid: 0000-0001-6646-5546 - first_name: Eitan full_name: Grinspun, Eitan last_name: Grinspun citation: ama: 'Da F, Hahn D, Batty C, Wojtan C, Grinspun E. Surface only liquids. In: Vol 35. ACM; 2016. doi:10.1145/2897824.2925899' apa: 'Da, F., Hahn, D., Batty, C., Wojtan, C., & Grinspun, E. (2016). Surface only liquids (Vol. 35). Presented at the ACM SIGGRAPH, Anaheim, CA, USA: ACM. https://doi.org/10.1145/2897824.2925899' chicago: Da, Fang, David Hahn, Christopher Batty, Chris Wojtan, and Eitan Grinspun. “Surface Only Liquids,” Vol. 35. ACM, 2016. https://doi.org/10.1145/2897824.2925899. ieee: F. Da, D. Hahn, C. Batty, C. Wojtan, and E. Grinspun, “Surface only liquids,” presented at the ACM SIGGRAPH, Anaheim, CA, USA, 2016, vol. 35, no. 4. ista: Da F, Hahn D, Batty C, Wojtan C, Grinspun E. 2016. Surface only liquids. ACM SIGGRAPH, ACM Transactions on Graphics, vol. 35, a78. mla: Da, Fang, et al. Surface Only Liquids. Vol. 35, no. 4, a78, ACM, 2016, doi:10.1145/2897824.2925899. short: F. Da, D. Hahn, C. Batty, C. Wojtan, E. Grinspun, in:, ACM, 2016. conference: end_date: 2016-07-28 location: Anaheim, CA, USA name: ACM SIGGRAPH start_date: 2016-07-24 date_created: 2018-12-11T11:51:35Z date_published: 2016-07-11T00:00:00Z date_updated: 2023-02-21T10:36:07Z day: '11' ddc: - '000' department: - _id: ChWo doi: 10.1145/2897824.2925899 ec_funded: 1 file: - access_level: open_access checksum: 6d662893bd447d4f575b4961a2247811 content_type: application/pdf creator: system date_created: 2018-12-12T10:08:01Z date_updated: 2020-07-14T12:44:46Z file_id: '4660' file_name: IST-2016-637-v1+1_2016_Da_SOL.pdf file_size: 10561865 relation: main_file file_date_updated: 2020-07-14T12:44:46Z has_accepted_license: '1' intvolume: ' 35' issue: '4' language: - iso: eng month: '07' oa: 1 oa_version: Published Version project: - _id: 2533E772-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '638176' name: Efficient Simulation of Natural Phenomena at Extremely Large Scales publication_status: published publisher: ACM publist_id: '5881' pubrep_id: '637' quality_controlled: '1' scopus_import: 1 status: public title: Surface only liquids type: conference user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 35 year: '2016' ... --- _id: '1412' abstract: - lang: eng text: Combining high-resolution level set surface tracking with lower resolution physics is an inexpensive method for achieving highly detailed liquid animations. Unfortunately, the inherent resolution mismatch introduces several types of disturbing visual artifacts. We identify the primary sources of these artifacts and present simple, efficient, and practical solutions to address them. First, we propose an unconditionally stable filtering method that selectively removes sub-grid surface artifacts not seen by the fluid physics, while preserving fine detail in dynamic splashing regions. It provides comparable results to recent error-correction techniques at lower cost, without substepping, and with better scaling behavior. Second, we show how a modified narrow-band scheme can ensure accurate free surface boundary conditions in the presence of large resolution mismatches. Our scheme preserves the efficiency of the narrow-band methodology, while eliminating objectionable stairstep artifacts observed in prior work. Third, we demonstrate that the use of linear interpolation of velocity during advection of the high-resolution level set surface is responsible for visible grid-aligned kinks; we therefore advocate higher-order velocity interpolation, and show that it dramatically reduces this artifact. While these three contributions are orthogonal, our results demonstrate that taken together they efficiently address the dominant sources of visual artifacts arising with high-resolution embedded liquid surfaces; the proposed approach offers improved visual quality, a straightforward implementation, and substantially greater scalability than competing methods. acknowledgement: 'This research was supported by NSERC (RGPIN-04360-2014) and IST Austria. ' author: - first_name: Ryan full_name: Goldade, Ryan last_name: Goldade - first_name: Christopher full_name: Batty, Christopher last_name: Batty - first_name: Christopher J full_name: Wojtan, Christopher J id: 3C61F1D2-F248-11E8-B48F-1D18A9856A87 last_name: Wojtan orcid: 0000-0001-6646-5546 citation: ama: Goldade R, Batty C, Wojtan C. A practical method for high-resolution embedded liquid surfaces. Computer Graphics Forum. 2016;35(2):233-242. doi:10.1111/cgf.12826 apa: Goldade, R., Batty, C., & Wojtan, C. (2016). A practical method for high-resolution embedded liquid surfaces. Computer Graphics Forum. Wiley-Blackwell. https://doi.org/10.1111/cgf.12826 chicago: Goldade, Ryan, Christopher Batty, and Chris Wojtan. “A Practical Method for High-Resolution Embedded Liquid Surfaces.” Computer Graphics Forum. Wiley-Blackwell, 2016. https://doi.org/10.1111/cgf.12826. ieee: R. Goldade, C. Batty, and C. Wojtan, “A practical method for high-resolution embedded liquid surfaces,” Computer Graphics Forum, vol. 35, no. 2. Wiley-Blackwell, pp. 233–242, 2016. ista: Goldade R, Batty C, Wojtan C. 2016. A practical method for high-resolution embedded liquid surfaces. Computer Graphics Forum. 35(2), 233–242. mla: Goldade, Ryan, et al. “A Practical Method for High-Resolution Embedded Liquid Surfaces.” Computer Graphics Forum, vol. 35, no. 2, Wiley-Blackwell, 2016, pp. 233–42, doi:10.1111/cgf.12826. short: R. Goldade, C. Batty, C. Wojtan, Computer Graphics Forum 35 (2016) 233–242. date_created: 2018-12-11T11:51:52Z date_published: 2016-05-27T00:00:00Z date_updated: 2023-02-21T10:38:30Z day: '27' ddc: - '000' department: - _id: ChWo doi: 10.1111/cgf.12826 ec_funded: 1 file: - access_level: open_access checksum: 8e61387ee2e3bd0e776fbe301629bfd9 content_type: application/pdf creator: system date_created: 2018-12-12T10:13:18Z date_updated: 2020-07-14T12:44:53Z file_id: '5000' file_name: IST-2016-612-v1+2_Wojtan_APracticalMethod_PostPrint_2016.pdf file_size: 15873858 relation: main_file file_date_updated: 2020-07-14T12:44:53Z has_accepted_license: '1' intvolume: ' 35' issue: '2' language: - iso: eng month: '05' oa: 1 oa_version: Submitted Version page: 233 - 242 project: - _id: 2533E772-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '638176' name: Efficient Simulation of Natural Phenomena at Extremely Large Scales publication: Computer Graphics Forum publication_status: published publisher: Wiley-Blackwell publist_id: '5795' pubrep_id: '612' quality_controlled: '1' scopus_import: 1 status: public title: A practical method for high-resolution embedded liquid surfaces type: journal_article user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 35 year: '2016' ...