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Path-space manipulation of physically-based light transport

Authors:

Thorsten-Walther Schmidt,

Anton S. Kaplanyan,

Derek Nowrouzezahrai,

Carsten DachsbacherAuthors Info & Claims

ACM Transactions on Graphics (TOG), Volume 32, Issue 4

Article No.: 129, Pages 1 - 11

https://doi.org/10.1145/2461912.2461980

Published: 21 July 2013 Publication History

Abstract

Industry-quality content creation relies on tools for lighting artists to quickly prototype, iterate, and refine final renders. As industry-leading studios quickly adopt physically-based rendering (PBR) across their art generation pipelines, many existing tools have become unsuitable as they address only simple effects without considering underlying PBR concepts and constraints. We present a novel light transport manipulation technique that operates directly on path-space solutions of the rendering equation. We expose intuitive direct and indirect manipulation approaches to edit complex effects such as (multi-refracted) caustics, diffuse and glossy indirect bounces, and direct/indirect shadows. With our sketch- and object-space selection, all built atop a parameterized regular expression engine, artists can search and isolate shading effects to inspect and edit. We classify and filter paths on the fly and visualize the selected transport phenomena. We survey artists who used our tool to manipulate complex phenomena on both static and animated scenes.

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Cited By

Kopanas GLeimkühler TRainer GJambon CDrettakis G(2022)Neural Point Catacaustics for Novel-View Synthesis of ReflectionsACM Transactions on Graphics10.1145/3550454.355549741:6(1-15)Online publication date: 30-Nov-2022
https://dl.acm.org/doi/10.1145/3550454.3555497
Desrichard FVanderhaeghe DPaulin M(2021)Shadow Layers for Participating MediaComputer Graphics Forum10.1111/cgf.1442941:1(190-200)Online publication date: 14-Dec-2021
https://doi.org/10.1111/cgf.14429
Doi KMorimoto YTsuruno R(2021)Global Illumination‐Aware Stylised ShadingComputer Graphics Forum10.1111/cgf.1439740:7(11-20)Online publication date: 27-Nov-2021
https://doi.org/10.1111/cgf.14397
Show More Cited By

Index Terms

Path-space manipulation of physically-based light transport
1. Computing methodologies
  1. Computer graphics
    1. Graphics systems and interfaces
    2. Rendering
      1. Ray tracing
2. Human-centered computing
  1. Human computer interaction (HCI)
    1. Interaction devices
      1. Graphics input devices

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Published In

cover image ACM Transactions on Graphics

ACM Transactions on Graphics Volume 32, Issue 4

July 2013

1215 pages

ISSN:0730-0301

EISSN:1557-7368

DOI:10.1145/2461912

Issue’s Table of Contents

Copyright © 2013 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 ACM 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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Association for Computing Machinery

New York, NY, United States

Publication History

Published: 21 July 2013

Published in TOG Volume 32, Issue 4

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Cited By

Kopanas GLeimkühler TRainer GJambon CDrettakis G(2022)Neural Point Catacaustics for Novel-View Synthesis of ReflectionsACM Transactions on Graphics10.1145/3550454.355549741:6(1-15)Online publication date: 30-Nov-2022
https://dl.acm.org/doi/10.1145/3550454.3555497
Desrichard FVanderhaeghe DPaulin M(2021)Shadow Layers for Participating MediaComputer Graphics Forum10.1111/cgf.1442941:1(190-200)Online publication date: 14-Dec-2021
https://doi.org/10.1111/cgf.14429
Doi KMorimoto YTsuruno R(2021)Global Illumination‐Aware Stylised ShadingComputer Graphics Forum10.1111/cgf.1439740:7(11-20)Online publication date: 27-Nov-2021
https://doi.org/10.1111/cgf.14397
Kartashova Tde Ridder Hte Pas SPont S(2019)A toolbox for volumetric visualization of light propertiesLighting Research & Technology10.1177/147715351882215951:6(838-857)Online publication date: 28-Jan-2019
https://doi.org/10.1177/1477153518822159
Kartashova TPas SRidder HPont S(2019)Light ShapesACM Transactions on Applied Perception10.1145/323285116:1(1-17)Online publication date: 29-Jan-2019
https://dl.acm.org/doi/10.1145/3232851
Desrichard FVanderhaeghe DPaulin M(2019)Global Illumination Shadow LayersComputer Graphics Forum10.1111/cgf.1378138:4(183-191)Online publication date: 30-Jul-2019
https://doi.org/10.1111/cgf.13781
Fascione LHanika JPieké RVillemin RHery CGamito MEmrose LMazzone A(2018)Path tracing in productionACM SIGGRAPH 2018 Courses10.1145/3214834.3214864(1-79)Online publication date: 12-Aug-2018
https://dl.acm.org/doi/10.1145/3214834.3214864
Simons GHerholz SPetitjean VRapp TAment MLensch HDachsbacher CEisemann MEisemann E(2018)Applying Visual Analytics to Physically Based RenderingComputer Graphics Forum10.1111/cgf.1345238:1(197-208)Online publication date: 4-Jul-2018
https://doi.org/10.1111/cgf.13452
Chen XAndrews SNowrouzezahrai DKry PEisemann EBateman S(2017)Ballistic Shadow ArtProceedings of the 43rd Graphics Interface Conference10.5555/3141475.3141512(190-198)Online publication date: 1-Jun-2017
https://dl.acm.org/doi/10.5555/3141475.3141512
Fascione LHanika JPieké RHery CVillemin RSchmidt TKulla CHeckenberg DMazzone A(2017)Path tracing in production - part 2ACM SIGGRAPH 2017 Courses10.1145/3084873.3084906(1-32)Online publication date: 30-Jul-2017
https://dl.acm.org/doi/10.1145/3084873.3084906
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