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Conference object . 1995
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https://doi.org/10.1007/978-3-...
Part of book or chapter of book . 1995 . Peer-reviewed
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Animated Texels

Authors: Neyret, Fabrice;
Abstract

Les textures volumiques , introduites par Kajiya en 1989, permettent de modéliser les géométries complexes (feuillage, fourrure...) à la manière d'une texture, comme une 'peau épaisse' constituée d'un motif répétitif volumique, le texel, recouvrant une surface simple. Cet article traite de l'animation des textures volumiques. L'animation des objets complexes se ramene a celle de la boite limitant le texel: - sur une surface animee (tissus), les texels restent 'orthogonaux' a la surface, suivant ses deformations. - sur une surface rigide, on deforme les texels en faisant operer un champ de force (vent) sur les cotes verticaux. - il serait egalement imaginable de commuter entre quelques 'volumes cles' au cours du temps, pour une animation dans l'esprit dessin anime (par exemple pour les petites oscillations).

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).

Country
France
Keywords

[INFO.INFO-GR] Computer Science [cs]/Graphics [cs.GR]

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
8
Average
Top 10%
Average
Green