### A quantized-diffusion model for rendering translucent materials

##### Content of review 1, reviewed on June 08, 2014

On page 4 the footnote incorrectly states that equation (5) is not absolutely convergent. Equation (5) provides the convergent form that separates the ballistic fluence from the scattered fluence and does converge. It is the alternative form $$\phi(r) = \frac{\mu_t^2}{2 \pi^2 r} \int_0^\infty \frac{\text{arctan}\, u}{\mu_t-\mu_s \, \frac{\text{arctan} \, u}{u}} \, \sin (r \, \mu_t \, u) \, du.$$ that does not separate the ballistic fluence explicitly and only converges in the sense of Cesaro summability.