There are two things I don't understand about the dirt map:
1. Subdivisions seem to broaden or limit the area of the dirt, even though that's supposed to be handled by distribution. Shouldn't it only effect the noisiness/quality?
2. If bias values are too high, dirt is showing edges of the object, just as vray edge is doing. This makes it hard to control if I want more bias. Why would it make polygons visible?
1. Subdivisions seem to broaden or limit the area of the dirt, even though that's supposed to be handled by distribution. Shouldn't it only effect the noisiness/quality?
2. If bias values are too high, dirt is showing edges of the object, just as vray edge is doing. This makes it hard to control if I want more bias. Why would it make polygons visible?