All-Purpose Texture Sprites

Sylvain Lefebvre 1 Samuel Hornus 2 Fabrice Neyret 1
1 EVASION - Virtual environments for animation and image synthesis of natural objects
GRAVIR - IMAG - Graphisme, Vision et Robotique, Inria Grenoble - Rhône-Alpes, CNRS - Centre National de la Recherche Scientifique : FR71
2 ARTIS - Acquisition, representation and transformations for image synthesis
GRAVIR - IMAG - Graphisme, Vision et Robotique, Inria Grenoble - Rhône-Alpes, CNRS - Centre National de la Recherche Scientifique : FR71
Abstract : We propose a representation for efficiently and conveniently storing texture patches on surfaces without parameterization. The main purpose is to texture surfaces at very high resolution while using very little memory: patterns are stored once while instance () attributes (pattern number, size, orientation) are stored in an octree-like structure (requiring no surface parameterization). Our representation correctly handles filtering while most other methods suffer from filtering artifacts at patch boundaries. Implemented as texture sprites, the texture patches of a composite texture can be updated dynamically. This provides natural support for interactive editing, and also enables various kinds of animated textures, from wavy stationary features to crawling spots. We extend this basic scheme with two examples which would be uneasy to achieve with other methods: complex blending modes between the texture patches, and rigid scales on a deforming surface. Since our representation is particularly well suited for interactive applications and texture authoring applications, we focus in the paper on its GPU implementation, while preserving high-quality rendering.
Type de document :
Rapport
[Research Report] RR-5209, INRIA. 2004
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https://hal.inria.fr/inria-00077049
Contributeur : Fabrice Neyret <>
Soumis le : lundi 29 mai 2006 - 12:00:00
Dernière modification le : mardi 24 octobre 2017 - 10:46:05
Document(s) archivé(s) le : lundi 5 avril 2010 - 21:35:49

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Sylvain Lefebvre, Samuel Hornus, Fabrice Neyret. All-Purpose Texture Sprites. [Research Report] RR-5209, INRIA. 2004. 〈inria-00077049〉

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