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Fast rendering of fabric micro-appearance models under directional and spherical gaussian lights

Authors:

Pramook Khungurn,

Steve Marschner,

Kavita BalaAuthors Info & Claims

ACM Transactions on Graphics (TOG), Volume 36, Issue 6

Article No.: 232, Pages 1 - 15

https://doi.org/10.1145/3130800.3130829

Published: 20 November 2017 Publication History

Abstract

Rendering fabrics using micro-appearance models---fiber-level microgeometry coupled with a fiber scattering model---can take hours per frame. We present a fast, precomputation-based algorithm for rendering both single and multiple scattering in fabrics with repeating structure illuminated by directional and spherical Gaussian lights.

Precomputed light transport (PRT) is well established but challenging to apply directly to cloth. This paper shows how to decompose the problem and pick the right approximations to achieve very high accuracy, with significant performance gains over path tracing. We treat single and multiple scattering separately and approximate local multiple scattering using precomputed transfer functions represented in spherical harmonics. We handle shadowing between fibers with precomputed per-fiber-segment visibility functions, using two different representations to separately deal with low and high frequency spherical Gaussian lights.

Our algorithm is designed for GPU performance and high visual quality. Compared to existing PRT methods, it is more accurate. In tens of seconds on a commodity GPU, it renders high-quality supersampled images that take path tracing tens of minutes on a compute cluster.

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Cited By

Kang DBaek ESon SLee YGong TKim H(2024)MIRRORProceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies10.1145/36314207:4(1-27)Online publication date: 12-Jan-2024
https://doi.org/10.1145/3631420
Shen YSaito SWang ZMaury OWu CHodgins JZheng YNam G(2023)CT2Hair: High-Fidelity 3D Hair Modeling using Computed TomographyACM Transactions on Graphics10.1145/359210642:4(1-13)Online publication date: 26-Jul-2023
https://doi.org/10.1145/3592106
Zhu JMontazeri ZAubry JYan LWeidlich A(2023)A Practical and Hierarchical Yarn‐based Shading Model for ClothComputer Graphics Forum10.1111/cgf.1489442:4Online publication date: 26-Jul-2023
https://doi.org/10.1111/cgf.14894
Show More Cited By

Index Terms

Fast rendering of fabric micro-appearance models under directional and spherical gaussian lights
1. Computing methodologies
  1. Computer graphics
    1. Rendering

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Published In

cover image ACM Transactions on Graphics

ACM Transactions on Graphics Volume 36, Issue 6

December 2017

973 pages

ISSN:0730-0301

EISSN:1557-7368

DOI:10.1145/3130800

Editor:
Kavita Bala

Issue’s Table of Contents

Copyright © 2017 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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Publication History

Published: 20 November 2017

Published in TOG Volume 36, Issue 6

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Cited By

Kang DBaek ESon SLee YGong TKim H(2024)MIRRORProceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies10.1145/36314207:4(1-27)Online publication date: 12-Jan-2024
https://doi.org/10.1145/3631420
Shen YSaito SWang ZMaury OWu CHodgins JZheng YNam G(2023)CT2Hair: High-Fidelity 3D Hair Modeling using Computed TomographyACM Transactions on Graphics10.1145/359210642:4(1-13)Online publication date: 26-Jul-2023
https://doi.org/10.1145/3592106
Zhu JMontazeri ZAubry JYan LWeidlich A(2023)A Practical and Hierarchical Yarn‐based Shading Model for ClothComputer Graphics Forum10.1111/cgf.1489442:4Online publication date: 26-Jul-2023
https://doi.org/10.1111/cgf.14894
Xu CWang RZhao SBao H(2021)Multi-Scale Hybrid Micro-Appearance Modeling and Realtime Rendering of Thin FabricsIEEE Transactions on Visualization and Computer Graphics10.1109/TVCG.2019.294940627:4(2409-2420)Online publication date: 1-Apr-2021
https://doi.org/10.1109/TVCG.2019.2949406
Montazeri ZXiao CFei YZheng CZhao S(2021)Mechanics-Aware Modeling of Cloth AppearanceIEEE Transactions on Visualization and Computer Graphics10.1109/TVCG.2019.293730127:1(137-150)Online publication date: 1-Jan-2021
https://doi.org/10.1109/TVCG.2019.2937301
Montazeri ZGammelmark SZhao SJensen H(2020)A practical ply-based appearance model of woven fabricsACM Transactions on Graphics10.1145/3414685.341777739:6(1-13)Online publication date: 27-Nov-2020
https://dl.acm.org/doi/10.1145/3414685.3417777
Castillo CLópez-Moreno JAliaga C(2019)Recent advances in fabric appearance reproductionComputers & Graphics10.1016/j.cag.2019.07.007Online publication date: Jul-2019
https://doi.org/10.1016/j.cag.2019.07.007

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