“Grip and Filament: A USD-Based Lighting Workflow” by Agland, Bunker, Jeziorski, Macha, Murphy, et al. …

  • ©Steve Agland, Simon Bunker, Jakub Jeziorski, Manuel Macha, Eoin Murphy, and Francesco Sansoni

  • ©Steve Agland, Simon Bunker, Jakub Jeziorski, Manuel Macha, Eoin Murphy, and Francesco Sansoni

  • ©Steve Agland, Simon Bunker, Jakub Jeziorski, Manuel Macha, Eoin Murphy, and Francesco Sansoni

Conference:


Entry Number: 33

Title:

    Grip and Filament: A USD-Based Lighting Workflow

Presenter(s):



Abstract:


    Animal Logic recently overhauled its outmoded lighting workflow for the film Peter Rabbit 2. Since Pixar’s Universal Scene Description (USD) was being adopted as the primary scene description format throughout the studio pipeline, this technology became a natural backbone around which to implement the new lighting toolkit. Following previous work to integrate USD into our animation pipeline [Baillet et al. 2018] we introduce Grip, a USD-native library which provides a node-based approach to authoring procedural modification of scenes; and Filament, a Qt-based application serving as the artist front end for interacting with a USD scene, the Grip engine, the production renderer, and pipeline tools.

References:


    Aloys Baillet, Eoin Murphy, Oliver Dunn, and Miguel Gao. 2018. Forging a New Animation Pipeline with USD. In ACM SIGGRAPH 2018 Talks (Vancouver, British Columbia, Canada) (SIGGRAPH ’18). Association for Computing Machinery, New York, NY, USA, Article 54, 2 pages. https://doi.org/10.1145/3214745.3214779

    Rob Bateman, Eoin Murphy, Fabrice Macagno, Paul Molodowitch, and Aloys Baillet. 2019. AL_USDMaya. https://github.com/AnimalLogic/AL_USDMaya.

    Luca Fascione, Johannes Hanika, Daniel Heckenberg, Christopher Kulla, Marc Droske, and Jorge Schwarzhaupt. 2019. Path Tracing in Production: Part 1: Modern Path Tracing. In ACM SIGGRAPH 2019 Courses (Los Angeles, California) (SIGGRAPH ’19). Association for Computing Machinery, New York, NY, USA, Article 19, 113 pages. https://doi.org/10.1145/3305366.3328079

Keyword(s):



Acknowledgements:


    Thanks to Craig Welsh, Daniel Heckenberg, Eddie Hoyle, JP Collins, Jonathan Penner, Rodrigo Janz, Callum Howard, Prethish Bhasuran and the Lighting crew on Peter Rabbit 2. Thanks also to Sebastian Grassia, George ElKoura and the USD team at Pixar for their support.


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