Hair simulation and rendering

Lansink, M. (2010) Hair simulation and rendering.

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Abstract:In the fields of Computer Graphics and Human Simulation, hair offers one of the most challenging physics and rendering problems. Correctly modelling the shape and the appearance of hair is crucial if one wants to generate realistic looking characters. Many of the problems are caused due to the intrinsic properties of natural human hair. In this Master Thesis I have addressed this problem by combining existing models and techniques into a configurable framework which allows the user to generate the intended hair coupe. The Super-Helix model – (Bertails, et al., 2005b) – in combination with Rosenbrock’s optimization method – (Rosenbrock, 1960) – have resulted in a physical hair model which is able to correctly simulate the overall shape of a hair coupe at rest. This physic model takes into account, both, the non-linear elastic properties of a individual hair strand and the gravitation field pulling at the hair strand. The visual aspect of the hair coupe are accounted for by rendering the hair coupe mesh with Kajiya & Kay’s illumination model – (Kajiya, et al., 1989) – and shadows are added by using Deep Opacity Maps – (Yuksel, et al., 2008). The completion of this project has resulted in a fully configurable hair simulation & rendering framework that is able to display physical and visual believable human hair.
Item Type:Essay (Master)
Faculty:EEMCS: Electrical Engineering, Mathematics and Computer Science
Subject:54 computer science
Programme:Human Media Interaction MSc (60030)
Link to this item:http://purl.utwente.nl/essays/59598
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