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2004

Memory Efficient Billboard Clouds for BTF Textured Objects

8 years 9 months ago
Memory Efficient Billboard Clouds for BTF Textured Objects
Efficiently rendering highly structured models distant from the viewer constitutes a difficult task since the geometric complexity has to be reduced extremely while simultaneously preserving the overall visual quality. Recently, billboard clouds have been introduced as an new solution to this problem. They achieve acceptable performance by coarsely approximating the geometry of a model while storing surface details as textures. Yet, important surface detail due to self-shadowing, reflectance properties and changing silhouettes is lost. In this paper we introduce Bidirectional Texture Function (BTF) textured billboard clouds which drastically increase the visual quality by preserving view- and light-dependent effects like reflection properties, changing silhouette and changing shadows while preserving the fast rendering performance. In order to utilize the gains of BTFs, we propose two new methods for generation of memory efficient billboard clouds optimized for connected and unconnect...
Jan Meseth, Reinhard Klein
Added 31 Oct 2010
Updated 31 Oct 2010
Type Conference
Year 2004
Where VMV
Authors Jan Meseth, Reinhard Klein
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