Mapping of a curve-object

Question

I have a curve-object with some geometry-settings that I want to put on another curve.

I'm setting up the scale of the mapping with generated texture coordinates until it's right. But if I activate the curve-modifier (+array) the mapping is not as I need it because it's not following the objects shape.

So I'm changing the texture coordinates to UV and setup the scaling again. That looks better but the middle section is still problematic and I can't really setup the UVs for all sides properly as long as the extrude-value is more the 0. The last image has a very high y-value but that messes up the other sides.

How can I map that middle section without converting it to a mesh? I want to have full control and easy access of the shape of the object. And of course a proper mapping.

Answer 1

In this case you can't avoid converting your object into a mesh, and creating a UV Map.

You can do this as follows:

1. Convert your object into a mesh.

   

2. Then switch to Edit Mode and select a long edge (with Select Edge Loop). Mark this as Mark Seam. This is your cut line for the UVMap.

   

3. Select the whole object with A and choose UV -> Unwrap from the menu.

   

4. Then switch to UV Editing and select a horizontal edge of a larger area. Then select Align Y to make it exactly horizontal. Repeat this with the lower edge of the face.

   

5. Do the same with the vertical edges of the face, but select Align X. This way you get a face that has exactly horizontal and vertical edges.

   

6. Next, change the UV Select Mode to Faces and mark all other faces with A in addition to the previously edited face. Then select Follow Active Quads from the menu. This will align all faces exactly like the selected face.

   

7. After that you only need to insert the node Texture Coordinate in the shader and use the output UV as a vector.