Abstract
A framework to incorporate subsurface scattering effects is proposed in this paper based on precomputed light transport technology, which can interactively rerender translucent objects. First, the complete BSSRDF model is considered and the two-pass hierarchical technique by [5] in the space of non-linearly approximated transport vectors is applied, which efficiently evaluate transport vectors due to diffuse multiple scattering. Single scattering is also incorporated by considering [16] 's approximation. For a general phase function, a technique from BRDF rendering is extended which using a separable decomposition to allow decoupled precomputation and rendering [8]. Using this approach, interactive frame rates with comparable speed to the state-of-the-art systems is achieved.
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