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Radiosity for dynamic scenes in flatland with the visibility complex
1996
Computer graphics forum (Print)
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To correctly understand and solve this problem, we start with a method in 2D for polygonal scenes using the visibility complex. ...
The radiosity method is particularly suitable for global illumination calculations in static environments. ...
Acknowledgements The authors wish to thank George Drettakis for his constant support and his helpful insights and suggestions. ...
doi:10.1111/1467-8659.1530237
fatcat:xuyrmuxfljahvm6x4rpstdqogm
Radiosity in Flatland
1992
Computer graphics forum (Print)
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The radiosity method for the simulation of interre ection of light between di use surfaces is such a common image synthesis technique that its derivation is worthy of study. ...
It is shown that the radiosity method is a simple nite element method for the solution of the integral equation governing global illumination. ...
This research has suggested a number of ideas for future research: one would like to nd the combination of approximations and algorithms that gives the most accurate nal result in the least time. ...
doi:10.1111/1467-8659.1130181
fatcat:g6lwh6pgirgzjerml2v2husbou
Wavelets in computer graphics
1996
Proceedings of the IEEE
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Handling geometrically complex scenes and physically faithful descriptions of their appearance and behavior, clashes with the requirement of multiple frame per second update rates. ...
We give an overview of some of the areas in which wavelets have already had an impact on the state of the art. ...
The main difficulty with clustering in the context of radiosity is due to visibility. For example, the light emitted from a cluster of elements is not equal to the sum of the individual emissions. ...
doi:10.1109/5.488703
fatcat:fbfitsuvuvh2nc4blq6gmvxlxq
Global illumination of glossy environments using wavelets and importance
1996
ACM Transactions on Graphics
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Importance is used to focus the computation on the interactions having the greatast impact on the visible solution. ...
We discuss a number of choices that must be made when constructing a finite element algorithm for glossy global illumination. ...
ACKNOWLEDGMENTS We would like to thank Dani Lischinski and Steven Gortler for their careful reviews of an early version of this article. ...
doi:10.1145/226150.226153
fatcat:7sdsecisc5dzvkvomwvzb2jhmu
Shader Lamps: Animating Real Objects With Image-Based Illumination
[chapter]
2001
Eurographics
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We describe a new paradigm for three-dimensional computer graphics, using projectors to graphically animate physical objects in the real world. ...
We address the central issue of complete and continuous illumination of non-trivial physical objects using multiple projectors and present a set of new techniques that makes the process of illumination ...
For stage shows, we can change not just the backdrops, but also simulate seasons or aging of the objects in the scene. ...
doi:10.1007/978-3-7091-6242-2_9
fatcat:j7mxy3jzenczzkzr3ngz5q7gqa
Shader Lamps: Animating Real Objects With Image-Based Illumination
[article]
2001
Symposium on Rendering
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We describe a new paradigm for three-dimensional computer graphics, using projectors to graphically animate physical objects in the real world. ...
We address the central issue of complete and continuous illumination of non-trivial physical objects using multiple projectors and present a set of new techniques that makes the process of illumination ...
We also thank members of the "Office of the Future" group at UNC Chapel Hill and specifically Wei-Chao Chen and Sang-Uok Kum for their help. ...
doi:10.2312/egwr/egwr01/089-101
fatcat:yfbssgjqefao7noqnr2nvusyq4
Modern approaches to augmented reality
2007
ACM SIGGRAPH 2007 courses on - SIGGRAPH '07
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Furthermore, it presents techniques for projector based augmentation of geometrically complex and textured display surfaces, and (along with optical combination) methods for achieving consistent illumination ...
Specifically, it will describe techniques for optical combination using single/multiple spatially aligned mirror-beam splitters, image sources, transparent screens and optical holograms. ...
Kiyokawa The HoloGraphics project is supported by the Deutsche Forschungsgemeinschaft (DFG BI 835/1-1). ...
doi:10.1145/1281500.1281628
dblp:conf/siggraph/BimberR07
fatcat:f2qbm6fwv5a4vlrefdrt5gmgxm
Modern approaches to augmented reality
2006
ACM SIGGRAPH 2006 Courses on - SIGGRAPH '06
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Furthermore, it presents techniques for projector based augmentation of geometrically complex and textured display surfaces, and (along with optical combination) methods for achieving consistent illumination ...
Specifically, it will describe techniques for optical combination using single/multiple spatially aligned mirror-beam splitters, image sources, transparent screens and optical holograms. ...
Kiyokawa The HoloGraphics project is supported by the Deutsche Forschungsgemeinschaft (DFG BI 835/1-1). ...
doi:10.1145/1185657.1185796
dblp:conf/siggraph/BimberR06
fatcat:xezuciurc5bb7lagctlek7ohle
Modern approaches to augmented reality
2006
ACM SIGGRAPH 2006 Courses on - SIGGRAPH '06
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Furthermore, it presents techniques for projector based augmentation of geometrically complex and textured display surfaces, and (along with optical combination) methods for achieving consistent illumination ...
Specifically, it will describe techniques for optical combination using single/multiple spatially aligned mirror-beam splitters, image sources, transparent screens and optical holograms. ...
Kiyokawa The HoloGraphics project is supported by the Deutsche Forschungsgemeinschaft (DFG BI 835/1-1). ...
doi:10.1145/1185657.1185797
dblp:conf/siggraph/Bimber06
fatcat:j4wsg26gbneu3d32hclrpvvdrm
Modern approaches to augmented reality
2005
ACM SIGGRAPH 2005 Courses on - SIGGRAPH '05
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Permission to copy in whole or in part without payment of fee is granted for nonprofit educational and research purposes provided that all such whole or partial copies include the following: a notice that ...
ACM SIGGRAPH 2006 This work may not be copied or reproduced in whole or in part for any commercial purpose. ...
A single accumulation of simple homogenous transformation matrices (as described for planar optics) cannot express such a complex deformation for the entire scene. ...
doi:10.1145/1198555.1198711
dblp:conf/siggraph/BimberR05
fatcat:czopmk5sxndxpd2xdjurkwjw24
Alternative Augmented Reality Approaches: Concepts, Techniques, and Applications
[article]
2003
Eurographics State of the Art Reports
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In this tutorial we discuss application specific alternative augmented reality (AR) approaches –such as Virtual Showcases and Shader Lamps– that focus on overcoming some of the limitations linked to conventional ...
Methods that create graphical augmentations with respect to the applied optical elements and display surfaces, and techniques for creating a high level of consistency between real and virtual environments ...
Acknowledgements We would like to acknowledge and thank all contributors of this tutorial: M. Agrawala, R. T. Azuma, E. Foxlin, G. Goebbels, H. Hua, M. Inami, N. Kawakami, Y. Kitamura, K. Kiyokawa ...
doi:10.2312/egt.20031097
fatcat:iu3lxc4umbax7p7xle3rpak6rq
Rendering (Dagstuhl Seminar 9624)
1996
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Hierarchical Radiosity -An Analysis of Computational Complexity for a Simple Scene Robert Garmann Universität Dortmund The hierarchical radiosity algorithm is an efficient algorithm for the simulation ...
Geometric Models of 3D Objects Using Range Images Robert Garmann Hierarchical Radiosity -An Analysis of Computational Complexity for a Simple Scene Philip Dutré A Mathematical Framework for Global Illumination ...
doi:10.4230/dagsemrep.148
fatcat:qld6okihsvgo5ccnq4pojbujua
Simulating humans: computer graphics animation and control
1994
ChoiceReviews
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The very ubiquitousness of other people in our lives poses a tantalizing challenge to the computational modeler: people are at once the most common object of interest and yet the most structurally complex ...
Our motor systems manage to learn how to make us move without leaving us the burden or pleasure of knowing how we did it. ...
The particular physical simulation approach is to use a simple nitedi erence approximation to the equations for elastic solids. ...
doi:10.5860/choice.31-2728
fatcat:r2oehymzrvb27mchwharo6fesm
New contributions to spatial partitioning and parallel global illumination algorithms
2004
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On the other hand a dynamic orthogonal recursive bisection tool for the dynamic partitioning of spatially mapped tasks is developped and analyzed theoretically and experimentally. ...
As a proof of practicability of our tool we apply the tool to the HRA and observe a well scalable behaviour and useful speedup values. ...
In practice, for a relatively simple task as the simple hall scene, usually we would use only few processors. ...
doi:10.17877/de290r-13450
fatcat:v647pq7fszd4dp6ipfewqwxx4e
Shading and inverse shading from direct illumination
1993
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It allows a user to obtain a desired lighting effect by interacting directly with the scene model. ...
To compute the light reflected by a surface element in a given direction, one needs to determine the unoccluded regions (shadowing) of each light source and then to compute the light reflection (shading ...
After, the visible area of the light grows quadratically. A scene made of m edges ca produce 0(m 3 ) EEE events [heck9la]. ...
doi:10.14288/1.0051267
fatcat:7yx6akbjkffznerri6x5jgul6m
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