Decoupled ray-marching of heterogeneous participating media

Authors:
Christopher Kulla
Affiliations:
Sony Pictures Imageworks
Venue:
ACM SIGGRAPH 2011 Talks
Year:
2011

Citing 3
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Abstract

We describe the integration of heterogeneous participating media into our production ray tracer. We specifically focus on the problem of computing the lighting without incurring a quadratic number of shader evaluations. The main difficulty in rendering volumes comes from the inability to analytically importance sample the transmission term: [EQUATION]