This page provides information on the V-Ray Edges Map.
Edges Color – Specifies the color of the edges.
Background Color – Specifies the color of the faces.
Show Hidden Edges – When enabled, edges internal to polygons are shown as well.
Width Type – Specifies the scale for the width of the edges.
World units – Thickness is measured in world (scene) units.
Pixels – Thickness is measured in pixels.
Show Subtriangles – When enabled, displays the sub-triangles. Can be used with subdivision and displacement to show the edges of the generated sub-triangles.