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Hardware‐Based Volumetric Knit‐Wear
Author(s) -
Daubert Katja,
Seidel HansPeter
Publication year - 2002
Publication title -
computer graphics forum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 120
eISSN - 1467-8659
pISSN - 0167-7055
DOI - 10.1111/1467-8659.t01-1-00708
Subject(s) - computer science , rendering (computer graphics) , voxel , computer graphics (images) , shader , texture mapping , graphics hardware , specular reflection , computer graphics , graphics pipeline , artificial intelligence , computer vision , volume rendering , 3d computer graphics , physics , quantum mechanics
We present a hardware‐based, volumetric approach for rendering knit wear at very interactive rates. A single stitch is represented by a volumetric texture with each voxel storing the main direction of the strands of yarn inside it. We render the knit wear in layers using an approximation of the Banks model. Our hardware implementation allows specular and diffuse material properties to change from one voxel to the next. This enables us to represent yarn made up of different components or render garments with complicated color patterns. Furthermore, our approach can handle self‐shadowing of the stitches, and can easily be adapted to also include view‐independent scattering. The resulting shader lends itself naturally to mip‐mapping, and requires no reordering of the base geometry, making it versatile and easy to use. Categories and Subject Descriptors (according to ACM CCS): I.3.3 [Computer Graphics]: Hardware Applications Volumetric Textures