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Bidirectional Analytic Ray Tracing for Fast Computation of Compo…
https://ieeexplore.ieee.org/document/4909462#:~:text=Abstract%3A%20The%20bidirectional%20analytic%20ray%20tracing%20%28BART%29%20method,large%20complex%20targets%20above%20a%20randomly%20rough%20surface.
Implementation of bidirectional ray tracing algorithm
https://old.cescg.org/CESCG98/PDornbach/
Trace the Ray – Part 8 (Project: Bidirectional Path Tracing)
https://kadircenk.com/blog/trace-the-ray-part-8-project-bidirectional-path-tracing/
Comparison Between Ray-Tracing Simulations and Bi-Directional ...
https://energy.lbl.gov/publications/comparison-between-ray-tracing
A virtual copy of the photogoniometer was then constructed with commercial ray-tracing software. For the first time, an attempt is made to validate detailed bi-directional properties for a complex system by comparing an extensive set of experimental BTDF data with ray-tracing calculations. The results generally agree under a range of input and ...
bidirectional ray tracing with
https://www.keldysh.ru/papers/2021/prep2021_89_en.pdf
stochastic ray tracing [2] and their bidirectional modi cations. Among them, we consider the bidirectional Monte-Carlo ray tracing with photon maps (BDPM) [3, 4]. The main problem of all stochastic methods is noisy result. Therefore, the noise reduction problem is always important, and it is considered in many works, e.g., [5, 6, 7].
Bidirectional Analytic Ray Tracing for Fast Computation …
https://ieeexplore.ieee.org/document/4909462
The bidirectional analytic ray tracing (BART) method is developed to rapidly calculate composite scattering from three-dimensional (3D) electrically large complex targets above a randomly rough surface. Ray tracing is carried out both along the incident (forward) direction and converse direction of scattering (backward) recording different orders of ray …
Bidirectional Path Tracing
https://pbr-book.org/3ed-2018/Light_Transport_III_Bidirectional_Methods/Bidirectional_Path_Tracing
16.3 Bidirectional Path Tracing. The path-tracing algorithm described in Section 14.5 was the first fully general light transport algorithm in computer graphics, handling both a wide variety of geometric representations, lights, and BSDF models. Although it works well for many scenes, path tracing can exhibit high variance in the presence of particular tricky lighting conditions.
Determination of Exact Ray Paths by Bidirectional …
https://ursi.org/proceedings/procGA20/papers/ursigass2020v3.pdf
unidirectional ray-tracing simulations, a reception sphere with a radius of 0.12m (corresponding to 2l distance at 5GHz) is utilized whereas in the bidirectional ray-tracing case, a cubic interaction surface, which encloses the re-ceiver and has a side length of 8m, is used. Note that the size of the interaction surface is much larger than the ...
Ray tracing (graphics) - Wikipedia
https://en.wikipedia.org/wiki/Ray_tracing_(graphics)
In 3D computer graphics, ray tracing is a technique for modeling light transport for use in a wide variety of rendering algorithms for generating digital images.. On a spectrum of computational cost and visual fidelity, ray tracing-based rendering techniques from ray casting, recursive ray tracing, distribution ray tracing, photon mapping to path tracing are generally slower and …
Chapter 10 Bidirectional Path Tracing - Stanford University
https://graphics.stanford.edu/courses/cs348b-03/papers/veach-chapter10.pdf
Bidirectional path tracing consists of a family of different importance sampling tech-niques for this integral. Each technique samples a path by connecting two independently generated pieces, one starting from the light sources, and the other from the eye. For exam-ple, in Figure 10.1 the light subpath 3 H 82 is constructed by choosing a random ...
Lecture 13 - Bidirectional - Universiteit Utrecht
http://www.cs.uu.nl/docs/vakken/magr/2019-2020/slides/lecture%2013%20-%20bidirectional.pdf
This is true for light tracing and path tracing. The problematic paths are SDS paths*: E: eye D: diffuse S: specular L: light (a light tracer fails on L(…)SE paths.) *: Heckbert, Adaptive radiosity textures for bidirectional ray tracing. SIGGRAPH 1990. Forward Advanced Graphics –Bidirectional 8
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