Sie befinden Sich nicht im Netzwerk der Universität Paderborn. Der Zugriff auf elektronische Ressourcen ist gegebenenfalls nur via VPN oder Shibboleth (DFN-AAI) möglich. mehr Informationen...
Accelerating subsurface scattering using Cholesky factorization
Ist Teil von
The Visual computer, 2006-08, Vol.22 (8), p.541-549
Ort / Verlag
Heidelberg: Springer Nature B.V
Erscheinungsjahr
2006
Link zum Volltext
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
In this paper we present a simplified subsurface scattering model that exploits a diffusion mechanism to provide a simpler solution to the transport equation. Our model is based on numerical analysis techniques that are amenable to Cholesky factorization. We treat the factorization as a precomputed scattering quantity which can be used to significantly speed up multiple scattering calculations as the global light source changes. On low resolution meshes, we have been able to achieve real-time solutions of the subsurface scattering while still maintaining good visual quality of the solution.