m_distribution properties

[Daniel]

Hello,

I am wondering if someone could provide some information on the two distribution types for the m_distribution property of the specular standard material type in Tonatiuh. In most of the literature I have seen the distribution of the surface errors are defined as some sort of bi-variant distribution using 2 angles to describe the deviation of the reflected ray. 

So I am wondering which of the two distributions offered (normal, and pillbox) tend to correspond best with experimental results and how the distributions are defined, (i.e. what does the value given to m_sigmaSlope equate to in terms of how the distribution is defined). 

Thanks in advance for your help.

Regards,

Daniel

[powe...@gmail.com]

Please also see my post on the Tonatiuh github regarding the same topic:

https://github.com/iat-cener/tonatiuh/issues/88