These are some of the Boulder Rocks that I made in ZBrush for the use of my Forest River scene in the organic world building in UE4 . I rendered them in Marmoset Toolbag for showcasing.
Boulder Rock Marmoset 01
Boulder Rock Substance 01
Boulder Rock ZBrush 01
Boulder Rock Marmoset 02
Boulder Rock Substance 02
Boulder Rock ZBrush 02
Usage in UE4 scene