Alexey Stomakhin
Steve Lesser
Joel Wretborn
ABSTRACT
We present Pahi, a unified water pipeline and toolset for visual effects production. It covers procedural blocking visualization for preproduction, simulation of various water phenomena from large-scale splashes with airborne spray and mist, underwater bubbles and foam to small-scale ripples, thin film and drips, and a compositing system to combine different elements together for rendering. Rather than prescribing a one-size-fits-all solution, Pahi encompasses a number of state-of-the-art techniques from reference engineering-grade solvers to highly art-directable tools. We do a deep dive into the technical aspects of Pahi components and their interaction, and discuss practical aspects of its use on Avatar: The Way of Water. We were honored to be awarded the Visual Effects Society (VES) 2023 Emerging Technology Award for this work.
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Digital Library
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- Jonathan Garcia, Sara Drakeley, Sean Palmer, Erin Ramos, David Hutchins, Ralf Habel, and Alexey Stomakhin. 2016. Rigging the Oceans of Disney’s "Moana". In SIGGRAPH ASIA 2016 Technical Briefs (Macau) (SA ’16). Association for Computing Machinery, New York, NY, USA, Article 30, 4 pages. https://doi.org/10.1145/3005358.3005379Google ScholarDigital Library
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- Alexey Stomakhin, Andrew Moffat, and Gary Boyle. 2019. A Practical Guide to Thin Film and Drips Simulation. In ACM SIGGRAPH 2019 Talks (Los Angeles, California) (SIGGRAPH ’19). Association for Computing Machinery, New York, NY, USA, Article 72, 2 pages. https://doi.org/10.1145/3306307.3328141Google ScholarDigital Library
- Alexey Stomakhin and Andrew Selle. 2017. Fluxed Animated Boundary Method. ACM Trans. Graph. 36, 4, Article 68 (jul 2017), 8 pages. https://doi.org/10.1145/3072959.3073597Google ScholarDigital Library
- Alexey Stomakhin, Joel Wretborn, Kevin Blom, and Gilles Daviet. 2020. Underwater Bubbles and Coupling. In ACM SIGGRAPH 2020 Talks (Virtual Event, USA) (SIGGRAPH ’20). Association for Computing Machinery, New York, NY, USA, Article 2, 2 pages. https://doi.org/10.1145/3388767.3407390Google ScholarDigital Library
- Joel Wretborn, Sean Flynn, and Alexey Stomakhin. 2022. Guided Bubbles and Wet Foam for Realistic Whitewater Simulation. ACM Trans. Graph. 41, 4, Article 117 (jul 2022), 16 pages. https://doi.org/10.1145/3528223.3530059Google ScholarDigital Library
- Jihun Yu and Greg Turk. 2013. Reconstructing Surfaces of Particle-Based Fluids Using Anisotropic Kernels. ACM Trans. Graph. 32, 1, Article 5 (feb 2013), 12 pages. https://doi.org/10.1145/2421636.2421641Google ScholarDigital Library
Index Terms
- Pahi: A Unified Water Pipeline and Toolset
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