A realistic image of woven cloth surface is provided by a system which receives a user input of a yarn cross section design to produce a side view image of a resultant spun or unspun yarn and which utilizes either basic weave patterns or user-designed patterns to produce a woven cloth images. Shading...http://www.google.com.au/patents/US5016183?utm_source=gb-gplus-sharePatent US5016183 - Textile design system and method
