November 15, 2015

## Curvature Sampling

Importance Sampling theory is used in graphics and other fields to reduce variance when integrating a function, such as evaluating the rendering equation. Here important samples are the ones that contribute most to the integral, so large function values (e.g. a light source reflected on a glossy surface). In this writeup I explore sampling proportional to the curvature of a function, instead of its value.

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