I was following this link on solidifying edges. When I went to convert the mesh to a curve, nothing happened. Here's what I starting with a new file:

  1. Select cube
  2. Tab to edit mode
  3. Ctrl + F > Wireframe
  4. Tab back to object mode
  5. Alt + C > Curve from Mesh/Text

Nothing happens. I noticed that it works if I add a Grid or Circle and try to convert those. What am I doing wrong?

I have Blender 2.71 (Release Candidate). I also tried converted the cube directly without converting it to a wireframe, but that didn't work either.

Context: I'm trying to create a picture like this, with shadeless faces (that occlude the background) and dark edges:

enter image description here

  • $\begingroup$ possible duplicate: blender.stackexchange.com/questions/9271/… $\endgroup$ – zeffii May 30 '15 at 5:43
  • $\begingroup$ i've addressed the question anyway, but the answer to the thing you want to achieve is to use Freestyle render lines. You will need 2.72 upwards. $\endgroup$ – zeffii May 30 '15 at 6:05

Conversion to wireframe does this in essence, for every face on a Mesh.

enter image description here

The wireframe conversion transforms each face into thin faces interior to the perimeter of the face, this function has parameters that you can change to adjust the width of those faces, but by default it is rather thin.

As a side note: The Curve from Mesh/Text conversion tool operates best on Meshes if you remove the faces first. (X, remove only faces). If the mesh doesn't have any Faces there is no need to convert to wire-frame (or remove doubles later on).

You can set the thickness of the wireframe to 0.000, and then you'll see little dots on the edges, because it still creates faces but they are so thin they will fall below the 'remove doubles' limit:

enter image description here

Removing doubles would look like this:

enter image description here

At this point you can convert to Curve from Mesh/Text. But I doubt that is actually what you want.

If you follow the link in the first comment on your Question you will be able to render results like this:

enter image description here

Conversion to wire-frame isn't the way to go about rendering with face occlusion.

  • $\begingroup$ The link you gave me did the trick! However, the original method you mentioned didn't work because when I deleted the faces, it deleted everything. Although it's not as important now, how should I delete the face in a way the keeps the edges/vertices? Do I need to first created edges/vertices? $\endgroup$ – Veech May 30 '15 at 14:20
  • $\begingroup$ read carefully what I said about the delete procedure, and look carefully at the options that appear in the delete menu. i.stack.imgur.com/hyDNK.png $\endgroup$ – zeffii May 30 '15 at 14:29

You could try this:

  • Select the cube
  • Tab to enter Edit Mode
  • Delete, only faces
  • Tab to exit Edit Mode
  • AltC should convert the mesh to curve

I think you can only convert mesh to curve, if the mesh only consists of edges and vertices, because curves basically also has only edges and vertices

  • 2
    $\begingroup$ I already said this.. $\endgroup$ – zeffii May 30 '15 at 7:20

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