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Cited by 428

The DOI matches its Crossref record; 24 of the 24 references it cites were found in a registry or an index.

Differentiable Monte Carlo ray tracing through edge sampling

Open access
Li, Tzu-Mao, Aittala, Miika, Durand, Frédo, Lehtinen, Jaakko·2018·ACM Transactions on Graphics

Abstract

Gradient-based methods are becoming increasingly important for computer graphics, machine learning, and computer vision. The ability to compute gradients is crucial to optimization, inverse problems, and deep learning. In rendering, the gradient is required with respect to variables such as camera parameters, light sources, scene geometry, or material appearance. However, computing the gradient of rendering is challenging because the rendering integral includes visibility terms that are not differentiable. Previous work on differentiable rendering has focused on approximate solutions. They often do not handle secondary effects such as shadows or global illumination, or they do not provide the gradient with respect to variables other than pixel coordinates. We introduce a general-purpose differentiable ray tracer, which, to our knowledge, is the first comprehensive solution that is able to compute derivatives of scalar functions over a rendered image with respect to arbitrary scene parameters such as camera pose, scene geometry, materials, and lighting parameters. The key to our method is a novel edge sampling algorithm that directly samples the Dirac delta functions introduced by the derivatives of the discontinuous integrand. We also develop efficient importance sampling methods based on spatial hierarchies. Our method can generate gradients in times running from seconds to minutes depending on scene complexity and desired precision. We interface our differentiable ray tracer with the deep learning library PyTorch and show prototype applications in inverse rendering and the generation of adversarial examples for neural networks.

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Metadata

Authors
Li, T.-M., Aittala, M., Durand, F., & Lehtinen, J.
Venue
ACM Transactions on Graphics
Published
2018-12-04
Volume
37
Issue
6
Pages
1-11
ISSN
  • 0730-0301 (ISSN-L)
  • 1557-7368
OpenAlex
W2902812770
Cited by
428
References
24
FWCI
97.95
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Differentiable Monte Carlo ray tracing through edge sampling. https://app.cochat.ai/papers/10.1145/3272127.3275109
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Li, T.-M., Aittala, M., Durand, F., & Lehtinen, J. (2018). Differentiable Monte Carlo ray tracing through edge sampling. ACM Transactions on Graphics. https://doi.org/10.1145/3272127.3275109

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