13. Subsurface Scattering
Dipole Model の実用化 ( 映画での実装)
ILM (Christophe Hery)
Dipole Model
+
テクスチャを用いたコントロール v
「 Harry Potter2(2002) 」
「 Lemony Snicket(2004) 」
「 Star Wars3(2005) 」
「 Pirates of Caribbean2,3(2006,2007) 」
27. Subsurface Scattering
GPU Human Skin
NVIDIA(2007) “A System for Efficient Rendering of Human
Skin”
* Multi-layer Model をガウス基底の線形結合に分解
* Diffusion の計算は2 D でおこない3 D モデルにマッ
ピング
↓
前計算を必要としないリアルタイム処理へ
29. Subsurface Scattering
Multi-Scattering in Hair
“Dual Scattering Approximation for Fast Multiple
Scattering in Hair”(2008)
http://cg.cs.uni-bonn.de/project-pages/hairmodeling/
Multi-Scattering in Hair
↓
global multi-scattering + local multi-
scattering.
30. Subsurface Scattering
Human Hair Model
Stephen Marshner(2003)
“Light Scattering from Human Hair Fibers”
38. Recovering Reflectance
Reflectance の検証
Shree Nayar ( 2006 )
“Fast Separation of Direct and Global Components of a Scene using High
Frequency Illumination”
http://www1.cs.columbia.edu/CAVE/projects/ separation/