Hi, just recently i noticed a rather odd feature of the MIA material.
when hit by light at low angles it appears darker compared to a lambert shader or the new Mila shader (or a Vray shader or any other shader i tested).
To see what i mean, you find a table with several images under this link:
http://www.roomservice3d.com/files/Post_160721_MiaShader.jpg
all materials are pure white and diffuse only, there is only one light in the scene lighting the plane (Lambert) and the two boxes (MIA + MILA) at different angles. test was done with linear color workflow.
at a light angle of 20° everything looks as expected with all 3 materials showing the same color. at lower angles of 10°,5° and 1° you notice how the mia shader gets darker compared to the other two. At 10° it is 70% percent as bright as the others (in linear color space), at 5° it is 32% and at a light angle of 1° only 7%.
what is up with that? is this behavior of the mia shader known by you (i found nothing with google)? is it a bug? is it a feature? if it is a feature WHY?