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CGF
2005

Pinchmaps: textures with customizable discontinuities

13 years 11 months ago
Pinchmaps: textures with customizable discontinuities
We introduce a new texture representation that combines standard sampling, to be bilinearly interpolated in smoothly varying regions, with customizable discontinuities, to model sharp boundaries between these regions. The structure consists of a standard signal texture, plus a second texture we call pinchmap, which encodes discontinuities along generally curved lines; at rendering time the fragment processor efficiently decodes this structure with a single access to each texture. We also present a fully automatic way to compute a pinchmap and signal texture pair, starting from an original high resolution image. The final result on the screen is a comparable visual quality for a fraction of the texture storage and with a negligible impact on performance. Categories and Subject Descriptors (according to ACM CCS): I.3.3 [Comp. Graph.]: Line and Curve Generation
Marco Tarini, Paolo Cignoni
Added 15 Dec 2010
Updated 15 Dec 2010
Type Journal
Year 2005
Where CGF
Authors Marco Tarini, Paolo Cignoni
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