Both of these are oranges made in Maya. Both are similar in color and have a blinn shader with a fractal surface shader. The only difference between the two is the left orange has a bump map connected to its blinn shader. The orange on the right, which looks like a ball of orange astroturf, has a displacement map connected to its blinn. As one can see, we get very different results. The left side looks more like a traditional orange but the dimples on the skin are an illusion created by the bump map and the fractal node. The left orange is technically a perfectly smooth sphere. The displacement map used on the right orange actually changes the geometry of the sphere and light/shadow will change depending on the where the light source is. Big differences result from using different render nodes.
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