short-paper

Multithreading USD and Qt: Adding Concurrency to Filament

Authors:

Jonathan Penner,

Jakub Jeziorski,

Kevin RussellAuthors Info & Claims

DigiPro '24: Proceedings of the 2024 Digital Production Symposium

Article No.: 3, Pages 1 - 5

https://doi.org/10.1145/3665320.3670992

Published: 13 July 2024 Publication History

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Abstract

As production scene complexity and CPU core count increase, the performance of software used to interact with the scenes may not scale accordingly. Filament is Animal Logic’s in-house, USD-based, PyQt lighting DCC, and a key area for improving Filament was increasing performance and responsiveness when working with large production scenes. As USD, Qt, and Python all have their own multithreading patterns, some coordination is required between all three to work well. Filament was updated to parallelize USD stage processing to reduce processing time, as well as adopt asynchrony to keep the main GUI thread unblocked, greatly improving artist experience. These updates demonstrate a model for multithreading USD stage access to improve other applications working with USD.

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References

[1]

Steve Agland, Jakub Jeziorski, Manuel Macha, Simon Bunker, Francesco Sansoni, and Eoin Murphy. 2020. Grip and Filament: A USD-Based Lighting Workflow. In ACM SIGGRAPH 2020 Talks (Virtual Event, USA) (SIGGRAPH ’20). Association for Computing Machinery, New York, NY, USA, Article 33, 2 pages. https://doi.org/10.1145/3388767.3407350

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[2]

Intel. [n. d.]. Intel oneTBB Website. Retrieved June 12, 2024 from https://www.intel.com/content/www/us/en/developer/tools/oneapi/onetbb.html

Google Scholar

[3]

NVIDIA. 2021. Omniverse Website. Retrieved May 1, 2024 from https://www.nvidia.com/en-us/omniverse/

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Index Terms

Multithreading USD and Qt: Adding Concurrency to Filament
1. Computing methodologies
  1. Computer graphics
    1. Graphics systems and interfaces
  2. Concurrent computing methodologies

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Information

Published In

DigiPro '24: Proceedings of the 2024 Digital Production Symposium

July 2024

87 pages

ISBN:9798400706905

DOI:10.1145/3665320

Editors:
Kelsey Hurley
Walt Disney Animation Studios
,
Eva Abramycheva
Unity Technologies
,
Per Christensen
Pixar Animation Studios
,
Lee Kerley
Apple

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Published: 13 July 2024

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DigiPro '24: The Digital Production Symposium

July 27, 2024

CO, Denver, USA

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Abstract

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Converting thread-level parallelism to instruction-level parallelism via simultaneous multithreading

Hybrid multithreading for VLIW processors

A continuation-based noninterruptible multithreading processor architecture

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