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Tracing Ray Differentials

    http://www.graphics.stanford.edu/papers/trd/
    Tracing Ray Differentials Homan Igehy, Stanford University. Appears in the Computer Graphics (SIGGRAPH '99 Proceedings) Abstract: Antialiasing of ray traced images is typically performed by super-sampling the image plane. While …

CiteSeerX — Tracing Ray Differentials

    https://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.33.5410
    CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Antialiasing of ray traced images is typically performed by supersampling the image plane. While this type of filtering works well for many algorithms, it is much more efficient to perform filtering locally on a surface for algorithms such as texture mapping. In order to perform this type of filtering, one must not ...

Tracing ray differentials | Proceedings of the 26th annual …

    https://dl.acm.org/doi/abs/10.1145/311535.311555
    J. Amanatides. Ray Tracing with Cones. Computer Graphics (SIGGRAPH 84 Proceedings), 18, 129-135, 1984. Google Scholar Digital Library; 3. A. Barkans. High-Quality Rendering Using the Talisman Architecture. 1997 SIGGRAPH / Eurographics Workshop on Graphics Hardware, 79-88, 1997. Google Scholar Digital Library; 4. M. Born and E. Wolf. …

Tracing Ray Differentials

    http://www.graphics.stanford.edu/papers/trd/trd_jpg.pdf
    approximation to a ray function. 3 TRACING RAY DIFFERENTIALS One way to view ray tracing is as the evaluation of the position and direction of a ray function at discrete points as it propagates through the scene. Any value v that is computed for the ray (e.g., luminance, texture coordinate on a surface, etc.) is derived by

Tracing Ray Differentials - ResearchGate

    https://www.researchgate.net/publication/2460339_Tracing_Ray_Differentials
    In classical ray tracing, ray differentials [Ige99] is developed to track the distance between two neighboring rays for texture filtering. Path differentials [SW01] is an extension of ray ...

Ray Differential - an overview | ScienceDirect Topics

    https://www.sciencedirect.com/topics/computer-science/ray-differential
    Ray differentials were introduced for specular reflection by Igehy [Ige99] and extended to diffuse reflection by Suykens and Willems [SW01]. More information about the use of ray differentials can also be found in Christensen et al. ... Figure 8.55 shows ray tracing of the Fiat Topolino brick map using three different levels of the brick map.

Ray differentials in a path tracer - NVIDIA Developer Forums

    https://forums.developer.nvidia.com/t/ray-differentials-in-a-path-tracer/45844
    I am looking to add support for ray differentials to a path tracer. I am working from the rayDifferentials and path_tracer sample projects in the OptiX 3.9.1 SDK. Let me note that I am aware that the stochastic nature of path tracers prevents aliasing effects. I want to use ray differentials for lodding purposes. Learning from example by looking at rayDifferentials, I …

Differentiable Monte Carlo Ray Tracing through Edge …

    https://people.csail.mit.edu/tzumao/diffrt/
    Publication. Tzu-Mao Li, Miika Aittala, Frédo Durand, Jaakko Lehtinen. Differentiable Monte Carlo Ray Tracing through Edge Sampling. ACM Transactions on Graphics 37 (6) (Proceedings of ACM SIGGRAPH Asia 2018) BibTeX. Errata. See here for errata of an equation in the paper.

Differentiable Monte Carlo ray tracing through edge …

    https://dl.acm.org/doi/10.1145/3272127.3275109
    The analysis of linear partial differential operators I: Distribution theory and Fourier analysis. Google Scholar; Homan Igehy. 1999. Tracing Ray Differentials. SIGGRAPH, 179--186. Google Scholar Digital Library; Wenzel Jakob, Miloš Hašan, Ling-Qi Yan, Jason Lawrence, Ravi Ramamoorthi, and Steve Marschner. 2014. Discrete stochastic microfacet ...

Differential Ray Tracing in CODE V - Synopsys

    https://www.synopsys.com/content/dam/synopsys/optical-solutions/documents/whitepapers/differential-ray-tracing.pdf
    the definition of differential ray tracing has broadened is also discussed in the following subsection on tolerancing. 3 Base ray Base ray Region about base ray for which ray data is known Figure 3: With differential ray information, one knows how rays near the base ray behave without having to trace additional rays

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