To follow up on Hippanda's analogy, modern electronic music can imitate the sound of a violin or an oboe. The sound is accurate and smooth, but you can never hear the vibration of the string or the reed on the real instrument. The sound is bland, featureless. Similarly, the CAD produced image on a medal can imitate the handwork of an sculptor on clay, but it does not have the feeling of texture. It is smooth and bland the same way electronic music is smooth and bland.