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https://sites.google.com/site/raytracingcamp4/
BSSRDF
S(xi, ��i,xo, ��o)
Circle Tracing for Subsurface Scattering A Practical Model for Subsurface Light Transport
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0T (x�,x)
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e (x�, ��) + �s(x�)�
S2fp(x�, ���, ��)L(x�, ���)d���
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n [David2016] KOERNER, D., NOVÁK, J. AND KUTZ, P. AND HABEL, R. AND Jarosz, W. 2016. Subdivision Next-Event Estimation for Path-Traced Subsurface Scattering. Eurographics Symposium on Rendering - Experimental Ideas & Implementations, June.
n [Donner2005] DONNER, C., AND JENSEN, H. W. 2005. Light diffusion in multi- layered translucent materials. ACM Transactions on Graphics (Proceedings of ACM SIGGRAPH 2005) 24, 3 (July), 1032– 1039.
n [Donner2006] CRAIG, S. D. 2006. Towards Realistic Image Synthesis of Scattering Materials. PhD Thesis, University of California San Diego.
n [Jeppe2015] FRISVAD, J. R., HACHISUKA, T., and KJELDSEN, T. K. Directional dipole model for subsurface scattering. ACM Transactions on Graphics 34(1), pp. 5:1-5:12, November 2014. Presented at SIGGRAPH 2015.
n [Jensen2001] JENSEN, H. W., MARSCHNER, S. R., LEVOY, M., AND HANRAHAN, P. 2001. A practical model for subsurface light transport. In Proceedings of ACM SIGGRAPH 2001, 511–518.
n [Jensen2002] JENSEN, H. W., AND BUHLER, J. 2002. A rapid hierarchical rendering technique for translucent materials. ACM Transactions on Graphics (Proceedings of ACM SIGGRAPH 2002) 21, 3 (July), 576–581.
n [King2013] KING, A., KULLA, C., CONTY, A., AND FAJARDO, M., 2013. BSSRDF importance sampling. ACM SIGGRAPH 2013 Talk, July.