Hi guys,
here's a little useful preset I would like to share. What it does is that the network gives you cracks and tiles, like you see them on dried out surfaces.
Usually the voronoi based noise function generate structures like that, but troubles it that the crack lines are usually way to thick to be used in any sort of realistic render.
This preset as well uses the voronoi, but does two things differently:
1 - Tile profile
You can give the tiles a profile, by incrasing the displacement parameter in the node called "tile profile"
2 - Narrow cracks
narrow, more natural looking cracks, that are warped and disorted downwards are managed through the node called "make cracks"
Hope you find that useful.
Cheers,
Frank
PS: the below is a "no frills" demo render