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I know how to add a material/color to a curve, but I want to add it like a detailed texture, like the sphere on the right of the image, as you can see if I render the image (left image) the curve is still just red, it doesn't have the level of detail of the real material/texture.

Is there any good way to do it? I was thinking on converting the curve into a mesh and then just add more polygons...it could work, but if in the future I need to change the curve shape, that won't help at all.

enter image description here

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    $\begingroup$ Is this just a normal map? If so, it should be using the generated coordinates. Double check your node setup, you may need to add a Texture Coordinate input node. $\endgroup$ – VRM Jan 22 '15 at 20:44
  • $\begingroup$ Where do i have to put the Texture Coordinate input node? and also, if i want to add a texture, and one that i want to show on the curve, which kind of configuration it will need to have? $\endgroup$ – beavoru Jan 22 '15 at 20:46
  • $\begingroup$ And yes, it's a bump-normal map for now, but after that i was thinking in add an image too.. $\endgroup$ – beavoru Jan 22 '15 at 20:47
  • $\begingroup$ It is supposed to utilize the generated UV coordinates by default . . . $\endgroup$ – VRM Jan 22 '15 at 20:50
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    $\begingroup$ Ah! Looking closer, the bumps are there, but very stretched out. You need to add a mapping node going into the Vector of your image texture. You will then be able to easily adjust the scale. Notice that you might need to add a texture coordinate input as well, going into the back of the mapping node. $\endgroup$ – VRM Jan 22 '15 at 20:52
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The bumps are showing up on the curve, however they are very stretched out. You need to add a Mapping node to adjust the scale of the texture with. Press Shift+A and select Vector > Mapping:

enter image description here

Now press Shift+A again and select Input > Texture Coordinate:

enter image description here

Now take these nodes and set them up as shown:

enter image description here

By changing the Scale values you can now change the size of the texture you are using.

Notice that it will repeat/tile, so it is best to have a seamless/tileable texture.

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