---
_id: '9818'
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.
acknowledged_ssus:
- _id: ScienComp
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."
article_number: '168'
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Georg
full_name: Sperl, Georg
id: 4DD40360-F248-11E8-B48F-1D18A9856A87
last_name: Sperl
- first_name: Rahul
full_name: Narain, Rahul
last_name: Narain
- 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: 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
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
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.
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.
ista: Sperl G, Narain R, Wojtan C. 2021. Mechanics-aware deformation of yarn pattern
geometry. ACM Transactions on Graphics. 40(4), 168.
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).
date_created: 2021-08-08T22:01:27Z
date_published: 2021-08-01T00:00:00Z
date_updated: 2023-08-10T14:24:36Z
day: '01'
department:
- _id: GradSch
- _id: ChWo
doi: 10.1145/3450626.3459816
ec_funded: 1
external_id:
isi:
- '000674930900132'
intvolume: ' 40'
isi: 1
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1145/3450626.3459816
month: '08'
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: ACM Transactions on Graphics
publication_identifier:
eissn:
- '15577368'
issn:
- '07300301'
publication_status: published
publisher: Association for Computing Machinery
quality_controlled: '1'
related_material:
link:
- description: News on IST Webpage
relation: press_release
url: https://ist.ac.at/en/news/knitting-virtual-yarn/
record:
- id: '12358'
relation: dissertation_contains
status: public
- id: '9327'
relation: software
status: public
scopus_import: '1'
status: public
title: Mechanics-aware deformation of yarn pattern geometry
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 40
year: '2021'
...
---
_id: '9327'
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"
author:
- first_name: Georg
full_name: Sperl, Georg
id: 4DD40360-F248-11E8-B48F-1D18A9856A87
last_name: Sperl
- first_name: Rahul
full_name: Narain, Rahul
last_name: Narain
- 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: Sperl G, Narain R, Wojtan C. Mechanics-Aware Deformation of Yarn Pattern Geometry
(Additional Animation/Model Data). 2021. doi:10.15479/AT:ISTA:9327
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
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.
ieee: G. Sperl, R. Narain, and C. Wojtan, “Mechanics-Aware Deformation of Yarn Pattern
Geometry (Additional Animation/Model Data).” IST Austria, 2021.
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.
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).
date_created: 2021-04-16T14:26:19Z
date_published: 2021-05-01T00:00:00Z
date_updated: 2023-08-10T14:24:36Z
ddc:
- '005'
department:
- _id: GradSch
- _id: ChWo
doi: 10.15479/AT:ISTA:9327
file:
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checksum: 0324cb519273371708743f3282e7c081
content_type: application/zip
creator: gsperl
date_created: 2021-04-16T14:15:12Z
date_updated: 2021-04-16T14:15:12Z
file_id: '9328'
file_name: MADYPG_extra_data.zip
file_size: 802586232
relation: main_file
success: 1
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checksum: 4c224551adf852b136ec21a4e13f0c1b
content_type: application/gzip
creator: pub-gitlab-bot
date_created: 2021-04-26T09:33:44Z
date_updated: 2021-04-26T09:33:44Z
file_id: '9353'
file_name: MADYPG.zip
file_size: 64962865
relation: main_file
file_date_updated: 2021-04-26T09:33:44Z
gitlab_commit_id: 6a77e7e22769230ae5f5edaa090fb4b828e57573
gitlab_url: https://git.ist.ac.at/gsperl/MADYPG
has_accepted_license: '1'
license: https://opensource.org/licenses/MIT
month: '05'
oa: 1
publisher: IST Austria
related_material:
record:
- id: '9818'
relation: used_for_analysis_in
status: public
status: public
title: Mechanics-Aware Deformation of Yarn Pattern Geometry (Additional Animation/Model
Data)
tmp:
legal_code_url: https://opensource.org/licenses/MIT
name: The MIT License
short: MIT
type: software
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
year: '2021'
...
---
_id: '8535'
abstract:
- lang: eng
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.
acknowledged_ssus:
- _id: ScienComp
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.
article_number: '65'
article_processing_charge: No
article_type: original
author:
- first_name: Tomas
full_name: Skrivan, Tomas
id: 486A5A46-F248-11E8-B48F-1D18A9856A87
last_name: Skrivan
- first_name: Andreas
full_name: Soderstrom, Andreas
last_name: Soderstrom
- first_name: John
full_name: Johansson, John
last_name: Johansson
- first_name: Christoph
full_name: Sprenger, Christoph
last_name: Sprenger
- first_name: Ken
full_name: Museth, Ken
last_name: Museth
- 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: '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'
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'
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.'
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.'
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.'
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.'
short: T. Skrivan, A. Soderstrom, J. Johansson, C. Sprenger, K. Museth, C. Wojtan,
ACM Transactions on Graphics 39 (2020).
date_created: 2020-09-20T22:01:37Z
date_published: 2020-07-08T00:00:00Z
date_updated: 2023-08-22T09:28:27Z
day: '08'
ddc:
- '000'
department:
- _id: ChWo
doi: 10.1145/3386569.3392466
ec_funded: 1
external_id:
isi:
- '000583700300038'
file:
- access_level: open_access
checksum: c3a680893f01cc4a9e961ff0a4cfa12f
content_type: application/pdf
creator: dernst
date_created: 2020-09-21T07:51:44Z
date_updated: 2020-09-21T07:51:44Z
file_id: '8541'
file_name: 2020_ACM_Skrivan.pdf
file_size: 20223953
relation: main_file
success: 1
file_date_updated: 2020-09-21T07:51:44Z
has_accepted_license: '1'
intvolume: ' 39'
isi: 1
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
- _id: 2564DBCA-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '665385'
name: International IST Doctoral Program
publication: ACM Transactions on Graphics
publication_identifier:
eissn:
- '15577368'
issn:
- '07300301'
publication_status: published
publisher: Association for Computing Machinery
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Wave curves: Simulating Lagrangian water waves on dynamically deforming surfaces'
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 39
year: '2020'
...
---
_id: '8765'
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.
acknowledged_ssus:
- _id: ScienComp
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."
article_processing_charge: No
article_type: original
author:
- first_name: Camille
full_name: Schreck, Camille
id: 2B14B676-F248-11E8-B48F-1D18A9856A87
last_name: Schreck
- 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: 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
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
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.
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.
ista: Schreck C, Wojtan C. 2020. A practical method for animating anisotropic elastoplastic
materials. Computer Graphics Forum. 39(2), 89–99.
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.
date_created: 2020-11-17T09:35:10Z
date_published: 2020-05-01T00:00:00Z
date_updated: 2023-09-05T16:00:13Z
day: '01'
ddc:
- '000'
department:
- _id: ChWo
doi: 10.1111/cgf.13914
ec_funded: 1
external_id:
isi:
- '000548709600008'
file:
- access_level: open_access
checksum: 7605f605acd84d0942b48bc7a1c2d72e
content_type: application/pdf
creator: dernst
date_created: 2020-11-23T09:05:13Z
date_updated: 2020-11-23T09:05:13Z
file_id: '8796'
file_name: 2020_poff_revisited.pdf
file_size: 38969122
relation: main_file
success: 1
file_date_updated: 2020-11-23T09:05:13Z
has_accepted_license: '1'
intvolume: ' 39'
isi: 1
issue: '2'
keyword:
- Computer Networks and Communications
language:
- iso: eng
month: '05'
oa: 1
oa_version: Submitted Version
page: 89-99
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_identifier:
eissn:
- 1467-8659
issn:
- 0167-7055
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: A practical method for animating anisotropic elastoplastic materials
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 39
year: '2020'
...
---
_id: '5681'
abstract:
- lang: eng
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.'
acknowledged_ssus:
- _id: ScienComp
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.
article_processing_charge: No
article_type: original
author:
- first_name: Ibayashi
full_name: Hikaru, Ibayashi
last_name: Hikaru
- 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: Nils
full_name: Thuerey, Nils
last_name: Thuerey
- first_name: Takeo
full_name: Igarashi, Takeo
last_name: Igarashi
- first_name: Ryoichi
full_name: Ando, Ryoichi
last_name: Ando
citation:
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
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
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.
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.
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.
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.
date_created: 2018-12-16T22:59:21Z
date_published: 2020-06-01T00:00:00Z
date_updated: 2023-09-18T09:30:01Z
day: '01'
ddc:
- '006'
department:
- _id: ChWo
doi: 10.1109/TVCG.2018.2883628
external_id:
isi:
- '000532295600014'
pmid:
- '30507534'
file:
- access_level: open_access
checksum: 8d4c55443a0ee335bb5bb652de503042
content_type: application/pdf
creator: wojtan
date_created: 2020-10-08T08:34:53Z
date_updated: 2020-10-08T08:34:53Z
file_id: '8626'
file_name: preprint.pdf
file_size: 21910098
relation: main_file
success: 1
file_date_updated: 2020-10-08T08:34:53Z
has_accepted_license: '1'
intvolume: ' 26'
isi: 1
issue: '6'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Submitted Version
page: 2288-2302
pmid: 1
publication: IEEE Transactions on Visualization and Computer Graphics
publication_identifier:
eissn:
- '19410506'
issn:
- '10772626'
publication_status: published
publisher: IEEE
quality_controlled: '1'
scopus_import: '1'
status: public
title: Simulating liquids on dynamically warping grids
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 26
year: '2020'
...