Carlos has been kind enough to combine all of the information into a searchable webpage accessed HERE which is populated by a google doc HERE. Thanks man!
A lot of hair shader in most of the render engine has an attribute for shifting the specular. eg: https://support.solidangle.com/display/NodeRef/hair#hair-spec_shift Why do we want to shift the hotspot of the hair away compare with other materials. I thought the angle of reflection always have the same relation with the…