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Pyramid Clipping for Efficient Ray Traversal - Academia.edu
https://www.academia.edu/13837607/Pyramid_Clipping_for_Efficient_Ray_Traversal#:~:text=Also%20shaft%20culling%20is%20a%20method%20that%20classifies,between%20a%20shooting%20patch%20and%20a%20receiving%20patch.
Shaft Culling for Efficient Ray-Cast Radiosity | SpringerLink
https://link.springer.com/chapter/10.1007/978-3-642-57963-9_13
An efficient method is presented to form a volume between the emitter and receiver, and then generate a candidate list of items partially or wholly within the volume. Using this list, ray casting is performed to determine the amount of visibility between surfaces. Statistics are presented showing the decrease in overall computation time ...
Shaft Culling for Efficient Ray-Cast Radiosity
http://www0.cs.ucl.ac.uk/research/vr/Projects/VLF/vlfpapers/radiosity/haines__Shaft_Culling__EGRW91.pdf
Shaft Culling for Efficient Ray-Cast Radiosity Eric A. Haines & John R. Wallace 3D/Eye Inc. 2359 North Triphammer Road Ithaca, NY 14850 USA email: [email protected], [email protected] Abstract In radiosity algorithms, much time is spent computing visibility between two surfaces. One approach to approximating this visibility is to use ray casting methods.
Shaft Culling for Efficient Ray-Cast Radiosity
https://erich.realtimerendering.com/ShaftCulling91.pdf
Title Shaft Culling for Efficient Ray-Cast Radiosity Author: hainese Created Date: 3/5/2008 12:00:00 AM
Shaft Culling for Efficient Ray-Cast Radiosity | Semantic …
https://www.semanticscholar.org/paper/Shaft-Culling-for-Efficient-Ray-Cast-Radiosity-Haines-Wallace/44d6186b7846acce147ebe85bc28d654029481e8
In radiosity algorithms, much time is spent computing visibility between two surfaces. One approach to approximating this visibility is to use ray casting methods. A new algorithm is presented which takes advantage of object coherency when using ray casting for radiosity. An efficient method is presented to form a volume between the emitter and receiver, and then …
Faster ray tracing with SIMD shaft culling - ResearchGate
https://www.researchgate.net/publication/47861506_Faster_ray_tracing_with_SIMD_shaft_culling
With that respect, our implementation is related to: the STAR about ray tracing by Wald et al. [9], the coherent grid traversal by Wald et al. [8], the SIMD frustum culling by Dmitriev et al. [2 ...
Faster Ray Tracing with SIMD Shaft Culling
https://dcgi.fel.cvut.cz/home/havran/ARTICLES/MPI-I-2004-4-006.pdf
2.2 Shaft Culling Haines and Wallace[6, 7] introduced shaft culling in the context of radiosity form-factors computation. The technique intersects a scene enclosed into hi-erarchy of axis-aligned bounding volumes against a convex shaft with planar boundaries. Testing a box against a shaft is a fast operation, as only one
Ray Tracing News, Volume 4, Number 2 - Real-Time Rendering
http://www.realtimerendering.com/resources/RTNews/html/rtnv4n2.html
The new version is called "Shaft Culling for Efficient Ray-Cast Radiosity". It's a nice little algorithm for finding what objects potentially block light between any two given boxes in space. Similar in some ways to Arvo & Kirk 5D but with hierarchy, it has some interesting potential uses and generally speeds up hierarchical bounding volume ray ...
A Ray tracing algorithm for progressive radiosity
https://www.semanticscholar.org/paper/A-Ray-tracing-algorithm-for-progressive-radiosity-Wallace-Elmquist/22d15399820b8b7b5afdab19ffe09982c6707b25
A more robust approach is described in which ray tracing is used to perform the numerical integration of the form-factor equation, tailored to provide good, approximate results for a low number of rays, while still providing a smooth continuum of increasing accuracy for higher numbers of rays. A new method for computing form-factors within a progressive radiosity …
Pyramid Clipping for Efficient Ray Traversal - ResearchGate
https://www.researchgate.net/publication/2360493_Pyramid_Clipping_for_Efficient_Ray_Traversal
Keywords and phrases: rendering, ray tracing, radiosity, graphics hardware, parallel processing, data coherence. View. Show abstract. ... Shaft Culling for Efficient Ray-Cast Radiosity ...
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