How would you model this Baren?

Here are my steps for getting what you want. These are merely suggestions about how to approach your challenge.

  1. In Photoshop, create a black-and-white texture.

  2. Install this Grasshopper plug-in in Rhino to build vector-based geometry.

NOTE: Not sure if this plug-in works with color photos. If color images are supported, disregard the first step.

  1. Consider the ‘drape’ command in Rhino.
  1. Also see Bump Map (Related to No. 1).

There’s an even easier way: 3D scan the model and “Quadremesh” it. :relieved: