Hi,

What you could do is use the push/pull method.

Make a

- Sphere
- show points
- select different points and then push and pull them around to get a form that you prefer.
- if you need more variation you can then cut into those stones - boolean
- chamfer if needed.

For uvmapping you probably want to use tri-planar method in your chosen engine as there are no UV's. With a detailed height/displacement map to show details.


I have also added some Sub-D stones in the file. They took me a 5 mintues to create using procedurals as apposed to manual sculpting.