I have worked together with Daniel Thiger to make his awesome rock materials available to you as alphas and brushes for ZBrush, Substance Painter etc. Preview & Download - https://www.artstation.com/artwork/KazOQ9
The height data has been generated from Daniels height maps then refined and made into alphas in ZBrush.
- 40 Alphas & Brushes.
- 2048x2048 16-bit.
- ZBrush Brushes.