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Research teams	Authors	Related webpages
ARTIS MIT Computer Graphics Group REVES	Matthieu Cunzi Joëlle Thollot Sylvain Paris Gilles Debunne Jean-Dominique Gascuel Frédo Durand	ARTIS publication entry ARCHEOS: INRIA Action de Recherche Coopérative Graphics Interface

Abstract

The static background paper or canvas texture usually used for Non-Photorealistic animation greatly impedes the sensation of motion and results in a disturbing ``shower door'' effect. We present a method to animate the background canvas for Non-Photorealistic Rendering animations and walkthroughs, which greatly improves the sensation of motion and 3D ``immersion''. The complex motion field induced by the 3D displacement is matched using purely 2D transformations. The motion field of forward translations is approximated using a 2D zoom in the texture, and the camera rotations is approximated using 2D translations and rotations. A rolling-ball metaphor is introduced to match the instantaneous 3D motion with a 2D transformation. An infinite zoom in the texture is made possible by using a paper model based on multifrequency solid turbulence. Our results indicate a dramatic improvement over a static background.

Conference material

Graphics Interface 2003 paper: PDF (5 MB) | PS.GZ (4 MB)

Graphics Interface 2003 presentation: PPT alone (8.6 MB) | full presentation: PPT+videos (94 MB)

Demonstration videos

Walkthrough demo MPEG 1 (22 MB) | Quicktime (26 MB)
	Rolling sphere metaphore MPEG 1 (7 MB) | Quicktime (14 MB)
Infinite zoom MPEG 1 (4 MB) | Quicktime (9 MB)
	Spherical warp MPEG 1 (6 MB) | Quicktime (14 MB)

Additional material

Source code

Donwload source code You will have to install the libQGLViewer library in order to use this example. To compile the application, simply type : qmake make

Paper texture samples (click for full size PNG image)

Bibliography

Bibtex entry

@InProceedings{ CTPDGD03,
author =      "Matthieu Cunzi and Jo{\"e}lle Thollot and Sylvain Paris
               and Gilles Debunne and Jean-Dominique Gascuel and Fr\'edo Durand", 
title =       "Dynamic Canvas for Immersive Non-Photorealistic Walkthroughs",
booktitle =   "Proc. Graphics Interface",
month =       "june",
year =        "2003",
publisher =   "A K Peters, LTD.",
keywords =    "NPR, Immersive Walkthrough, Canvas, Paper,
               Infinite Zoom, Rolling Sphere Metaphore",
url =         "http://artis.imag.fr/Publications/2003/CTPDGD03"
}
        

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