research-article

Manuka: A Batch-Shading Architecture for Spectral Path Tracing in Movie Production

Authors:

Johannes Hanika,

Jorge Schwarzhaupt,

Tomáš Davidovič,

Andrea Weidlich,

Johannes MengAuthors Info & Claims

ACM Transactions on Graphics (TOG), Volume 37, Issue 3

Article No.: 31, Pages 1 - 18

https://doi.org/10.1145/3182161

Published: 07 August 2018 Publication History

Abstract

The Manuka rendering architecture has been designed in the spirit of the classic reyes rendering architecture: to enable the creation of visually rich computer generated imagery for visual effects in movie production. Following in the footsteps of reyes over the past 30 years, this means supporting extremely complex geometry, texturing, and shading. In the current generation of renderers, it is essential to support very accurate global illumination as a means to naturally tie together different assets in a picture.

This is commonly achieved with Monte Carlo path tracing, using a paradigm often called shade on hit, in which the renderer alternates tracing rays with running shaders on the various ray hits. The shaders take the role of generating the inputs of the local material structure, which is then used by path-sampling logic to evaluate contributions and to inform what

further rays to cast through the scene. We propose a shade before hit paradigm instead and minimise I/O strain on the system, leveraging locality of reference by running pattern generation shaders before we execute light transport simulation by path sampling.

We describe a full architecture built around this approach, featuring spectral light transport and a flexible implementation of multiple importance sampling (mis), resulting in a system able to support a comparable amount of extensibility to what made the reyes rendering architecture successful over many decades.

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Index Terms

Manuka: A Batch-Shading Architecture for Spectral Path Tracing in Movie Production
1. Computing methodologies
  1. Computer graphics
    1. Rendering
      1. Ray tracing

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cover image ACM Transactions on Graphics

ACM Transactions on Graphics Volume 37, Issue 3

Special Issue On Production Rendering and Regular Papers

June 2018

198 pages

ISSN:0730-0301

EISSN:1557-7368

DOI:10.1145/3243123

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Published: 07 August 2018

Accepted: 01 January 2018

Received: 01 November 2017

Published in TOG Volume 37, Issue 3

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Sinha SKühn JGraf HWeinmann M(2024)SpectralSplatsViewer: An Interactive Web-Based Tool for Visualizing Cross-Spectral Gaussian SplatsProceedings of the 29th International ACM Conference on 3D Web Technology10.1145/3665318.3677151(1-10)Online publication date: 25-Sep-2024
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https://doi.org/10.34133/icomputing.0007
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