Create a coin 3D model render Disconnect file from color Select arrow and hit delete button: Enlarge Image Enlarge Image Now if you render it with mental ray, it's will be something like this: Enlarge Image So what we need to do is create approximation for displacement Open Approximation editor: Enlarge Image Click create button: Enlarge Image Select coin and click assign button: Enlarge Image Now click edit button and adjust it: Enlarge Image Also open file node with our texture and decrease alpha gain: Enlarge Image Try to render, you can see there it's very low details: Enlarge Image So we need to add details to geometry, I made it's simply by extruding faces, and scale them down Also you will need to create new UV (just repeat steps as shown above): Enlarge Image Now try to render I also set alpha gain a little lower value, 0.03 Enlarge Image So finally tweak blinn as metal and make final ...