##### Content of review 1, reviewed on August 14, 2013

The equation between (19) and (20) has incorrect indices on the $\tau$s and should read:

$$ w_i = \int_{\tau_i}^{\tau_{i+1}} e^{-\tau \mu_a} d\tau = \frac{e^{-\tau_i \mu_a} - e^{-\tau_{i+1} \mu_a }}{\mu_a} $$

(thanks to Toshiya Hachisuka for bringing this to my attention)

##### Source

© 2013 the Reviewer.

##### References

D'Eon, E., Irving, G. 2011. A quantized-diffusion model for rendering translucent materials. ACM Transactions on Graphics, 30(4): 1.