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Automated Accessory Rigs for Layered 2D Character Illustrations

Authors:

Maneesh AgrawalaAuthors Info & Claims

UIST '21: The 34th Annual ACM Symposium on User Interface Software and Technology

Pages 1100 - 1108

https://doi.org/10.1145/3472749.3474809

Published: 12 October 2021 Publication History

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Abstract

Mix-and-match character creation tools enable users to quickly produce 2D character illustrations by combining various predefined accessories, like clothes and hairstyles, which are represented as separate, interchangeable artwork layers. However, these accessory layers are often designed to fit only the default body artwork, so users cannot modify the body without manually updating all the accessory layers as well. To address this issue, we present a method that captures and preserves important relationships between artwork layers so that the predefined accessories adapt with the character’s body. We encode these relationships with four types of constraints that handle common interactions between layers: (1) occlusion, (2) attachment at a point, (3) coincident boundaries, and (4) overlapping regions. A rig is a set of constraints that allow a motion or deformation specified on the body to transfer to the accessory layers. We present an automated algorithm for generating such a rig for each accessory layer, but also allow users to select which constraints to apply to specific accessories. We demonstrate how our system supports a variety of modifications to body shape and pose using artwork from mix-and-match data sets.

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Cited By

Jo HSuzuki RKim Y(2024)CollageVis: Rapid Previsualization Tool for Indie Filmmaking using Video CollagesProceedings of the 2024 CHI Conference on Human Factors in Computing Systems10.1145/3613904.3642575(1-16)Online publication date: 11-May-2024
https://dl.acm.org/doi/10.1145/3613904.3642575
Shi YPeng YDang SZhao NCao N(2024)Personalizing Products with Stylized Head Portraits for Self-ExpressionProceedings of the 2024 CHI Conference on Human Factors in Computing Systems10.1145/3613904.3642391(1-18)Online publication date: 11-May-2024
https://dl.acm.org/doi/10.1145/3613904.3642391
Li J(2022)Extending Computational Abstractions with Manual Craft for Visual Art ToolsAdjunct Proceedings of the 35th Annual ACM Symposium on User Interface Software and Technology10.1145/3526114.3558527(1-5)Online publication date: 29-Oct-2022
https://dl.acm.org/doi/10.1145/3526114.3558527

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cover image ACM Conferences

UIST '21: The 34th Annual ACM Symposium on User Interface Software and Technology

October 2021

1357 pages

ISBN:9781450386357

DOI:10.1145/3472749

Editors:
Jeffrey Nichols
Apple, USA
,
Ranjitha Kumar
UIUC, USA
,
Michael Nebeling
University of Michigan, USA

Copyright © 2021 ACM.

Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than the author(s) must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected].

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Published: 12 October 2021

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UIST '21: The 34th Annual ACM Symposium on User Interface Software and Technology

October 10 - 14, 2021

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Overall Acceptance Rate 561 of 2,567 submissions, 22%

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The 38th Annual ACM Symposium on User Interface Software and Technology

September 28 - October 1, 2025

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Cited By

Jo HSuzuki RKim Y(2024)CollageVis: Rapid Previsualization Tool for Indie Filmmaking using Video CollagesProceedings of the 2024 CHI Conference on Human Factors in Computing Systems10.1145/3613904.3642575(1-16)Online publication date: 11-May-2024
https://dl.acm.org/doi/10.1145/3613904.3642575
Shi YPeng YDang SZhao NCao N(2024)Personalizing Products with Stylized Head Portraits for Self-ExpressionProceedings of the 2024 CHI Conference on Human Factors in Computing Systems10.1145/3613904.3642391(1-18)Online publication date: 11-May-2024
https://dl.acm.org/doi/10.1145/3613904.3642391
Li J(2022)Extending Computational Abstractions with Manual Craft for Visual Art ToolsAdjunct Proceedings of the 35th Annual ACM Symposium on User Interface Software and Technology10.1145/3526114.3558527(1-5)Online publication date: 29-Oct-2022
https://dl.acm.org/doi/10.1145/3526114.3558527

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