Animated Texels

(Fabrice Neyret)

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Volumetric textures, introduced by Kajiya in 1989, are used to model complex geometries (such as foliage, fur, ...) on a textural way, by mapping a 'thick skin' made of a repetitive pattern (the texel) covering a simple surface.
This article deal with animating volumetric textures. Complex geometry animation is equivalent to the one of the frame of the texel:
- on an animated surface (cloth), the texels stay `normals' to the surface, following its deformations.
- on a rigid surface, texels are deformed by using a strength field (wind) ob the vertical edges.
- it may be also possible to switch some `key volumes' along the time, for a cartoon spirit animation (e.g. for small oscillations).

The paper in Postscript (1.2Mb) (without images (26Kb)) or in PDF (0.28Mb).
The pictures (in jpeg)

The bibtex entry for this publication:
  author =       "Fabrice Neyret",
  title =        "Animated Texels",
  booktitle =    "Computer Animation and Simulation '95",
  year =         "1995",
  month =        sep,
  note =         "ISBN 3-211-82738-2",
  organization = "Eurographics",
  publisher =    "Springer-Verlag",
  editor =       "Dimitri Terzopoulos and Daniel Thalmann",
  pages =        "97--103",

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