Dynamic Canvas for Immersive Non-Photorealistic Walkthroughs

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 camera rotation is approximated using 2D translation and rotation. 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.

@InProceedings\{CTPDGD03,
  author       = "Cunzi, Matthieu and Thollot, Jo{\"e}lle and Paris, Sylvain and Debunne, Gilles and Gascuel, Jean-Dominique and Durand, Fr\'edo",
  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, Ca",
  url          = "http://artis.imag.fr/Publications/2003/CTPDGD03"
}