Results 21 to 30 of about 55,690 (303)
A new hybrid geometrical optics and radiance based scattering model for ray tracing applications [PDF]
, 2005 This paper presents a new hybrid geometrical optics (GO) and radiance based rough surface scattering model for use in ray tracing propagation models. The reflectance model includes the effects of both specular and diffuse reflection.
Nix, AR, Ng, KH, Tameh, EK
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Interactive SIMD ray tracing for large deformable tetrahedral meshes
, 2022 S.147-154We introduce an interactive ray tracing method for large deformable tetrahedral meshes which has carefully been designed for supporting general single instruction multiple data (SIMD) operations.
Pfreundt, F.-J., Groß, M., Hagen, H.
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A new heuristic geometrical approach for finding non-coplanar multiple edge diffraction ray paths [PDF]
, 2006 Rooftop diffraction can contribute significantly to the propagation path loss in outdoor microcellular environments. For non-coplanar multiple edges, the finding of exact ray paths requires a complex algebraic analysis that is infeasible for rapid ...
Nix, AR +5 more
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Fast ray tracing by ray classification [PDF]
ACM SIGGRAPH Computer Graphics, 1987 We describe a new approach to ray tracing which drastically reduces the number of ray-object and ray-bounds intersection calculations by means of 5-dimensional space subdivision. Collections of rays originating from a common 3D rectangular volume and directed through a 2D solid angle are represented as hypercubes in 5-space.
James Arvo, David Blair Kirk
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Comparison of Phase Space and Quasi-Monte Carlo Ray Tracing for the 3D Compound Parabolic Concentrator [PDF]
EPJ Web of ConferencesPhase space ray tracing is an alternative to (Quasi-)Monte Carlo ray tracing in 2D. We introduce a 3D phase space algorithm and apply it to the compound parabolic concentrator.
Jansen Willem +3 more
doaj +1 more source
Dynamic Low-sampling Ambient Occlusion Real-time Ray Tracing for Molecular Rendering [PDF]
Jisuanji kexue, 2022 High-quality rendering in molecular visualization are particularly important for researchers to observe the structure of biomolecules.The rasterization rendering effect commonly used by mainstream molecular visualization tools is not good.Advanced ray ...
LI Jia-zhen, JI Qing-ge
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Application of ionospheric tomography for high frequency oblique incidence ray tracing
Annals of Geophysics, 2016 Recognizing the applicability of tomographic imaging in the ionosphere, the reconstruction method has been applied to generate more realistic low latitude ionospheric background based on the Ionex TEC data and also direct measurement TEC data over West ...
Sandip Nandi, Bijoy Bandyopadhyay
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IEEE Photonics Journal, 2023 Fast holographic generation technology depends on the swift creation of computer-generated holograms (CGHs). Currently, the fast generation method of computer-generated holograms based on ray tracing is still based on non-physical ray tracing methods ...
Xindi Chen +5 more
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ACM SIGGRAPH 2005 Courses on - SIGGRAPH '05, 1999 We examine a rendering system that interactively ray traces an image on a conventional multiprocessor. The implementation is "brute force" in that it explicitly traces rays through every screen pixel, yet pays careful attention to system resources for acceleration.
Steven G. Parker +5 more
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RAY TRACING RENDER MENGGUNAKAN FRAGMENT ANTI ALIASING
JUTI: Jurnal Ilmiah Teknologi Informasi, 2008 Rendering is generating surface and three-dimensional effects on an object displayed on a monitor screen. Ray tracing as a rendering method that traces ray for each image pixel has a drawback, that is, aliasing (jaggies effect). There are some methods
Febriliyan Samopa, Wawan Mardian
doaj +1 more source