Photorealistic rendering of knitwear using the lumislice

  • Authors:
  • Ying-Qing Xu;Yanyun Chen;Stephen Lin;Hua Zhong;Enhua Wu;Baining Guo;Heung-Yeung Shum

  • Affiliations:
  • Beijing Sigma Center, No. 49, Zhichun Road, Haidian District, Beijing 100080 P.R.China and Microsoft Research, China;Institute of Software, Academia Sinica;Beijing Sigma Center, No. 49, Zhichun Road, Haidian District, Beijing 100080 P.R.China and Microsoft Research, China;Beijing Sigma Center, No. 49, Zhichun Road, Haidian District, Beijing 100080 P.R.China and Microsoft Research, China;Institute of Software, Academia Sinica;Beijing Sigma Center, No. 49, Zhichun Road, Haidian District, Beijing 100080 P.R.China and Microsoft Research, China;Beijing Sigma Center, No. 49, Zhichun Road, Haidian District, Beijing 100080 P.R.China and Microsoft Research, China

  • Venue:
  • Proceedings of the 28th annual conference on Computer graphics and interactive techniques
  • Year:
  • 2001

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Abstract

We present a method for efficient synthesis of photorealistic free-form knitwear. Our approach is motivated by the observation that a single cross-section of yarn can serve as the basic primitive for modeling entire articles of knitwear. This primitive, called the lumislice, describes radiance from a yarn cross-section based on fine-level interactions — such as occlusion, shadowing, and multiple scattering — among yarn fibers. By representing yarn as a sequence of identical but rotated cross-sections, the lumislice can effectively propagate local microstructure over arbitrary stitch patterns and knitwear shapes. This framework accommodates varying levels of detail and capitalizes on hardware-assisted transparency blending. To further enhance realism, a technique for generating soft shadows from yarn is also introduced.