Multiple Vertex Next Event Estimation for Lighting in dense, forward‐scattering Media

• Published in: Computer graphics forum Vol. 36; no. 2; pp. 21 - 30
• Main Authors: Weber, Pascal, Hanika, Johannes, Dachsbacher, Carsten
• Format: Journal Article
• Language: English
• Published: Oxford Blackwell Publishing Ltd 01.05.2017
• Subjects: Categories and Subject Descriptors (according to ACM CCS); Forward scattering; I.3.7 [Computer Graphics]: Three Dimensional Graphics and Realism—Raytracing; Importance sampling; Light sources; Lighting; Monte Carlo simulation; Random walk; Segments

We present a new technique called Multiple Vertex Next Event Estimation, which outperforms current direct lighting techniques in forward scattering, optically dense media with the Henyey‐Greenstein phase function. Instead of a one‐segment connection from a vertex within the medium to the light sourc...