A pit map is a surface that stores limited scope encompassing impediment. Additionally called a Crevice map. Depression map is not quite the same as Curvature map which stores the convexity/concavity of a lattice. To heat a hole map, utilize surrounding impediment with the beam distance set to a lower esteem.

Hole maps are basically the blue channel of an ordinary guide and address dim concealing in the fissure of the model. They can be valuable as an increase layer over a diffuse shading guide to highlight subtleties or as a diffuse guide in Maya to help punch up the high-recurrence subtleties in a render