Real-time subsurface scattering on the GPU

Antoine Bouthors (1) , Eric Bruneton (1) , Fabrice Neyret (1) , Nelson Max (2)

1 EVASION - Virtual environments for animation and image synthesis of natural objects
2 IDAV - Institute of Data Analysis and Visualization

We present a GPU algorithm that computes subsurface light transport in real time on arbitrary animated meshes. We evaluate both single scattering and multiple scattering, by using piecewise linear and ring-based approximations of the surface in the fragment shader. We demonstrate our technique on animated meshes at 60 fps.

Mots clés: scattering; subsurface; GPU; dipole approximation

Domaines: Synthèse d'image et réalité virtuelle [cs.GR]

Antoine Bouthors, Eric Bruneton, Fabrice Neyret, Nelson Max. Real-time subsurface scattering on the GPU. [Technical Report] 2007, pp.1. ⟨inria-00537428⟩