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I use Blender 2.69. When I create a closed curve (for example, a circle) and make it 2D with the properties editor, it becomes filled.

Since I work with backface culling on (because of the application of the objects I make), only one of the sides is visible. In the case of a just created circle or a figure imported from SVG, it's the bottom side. In the latter case, it is especially annoying, because the figure appears mirrored.

Is there a simple way to flip the face (similar to flipping the normal for a mesh face) so that it shows on the opposite side of the curve?

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You can swap the normal of the face by flipping the directions of the curve.

  1. Select the curve

  2. In edit mode go to Curve -> Segments -> Switch Direction. You can also do this via the space menu be searching for "switch direction"

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  • $\begingroup$ Thanks! That worked, except I needed to select something first while in edit mode. It's annoying that it can't be done while in object mode, because I have to do it to each polygon imported from SVG, switching back and forth and selecting something for each polygon. Any clue about whether it's possible to do it while in object mode, to be able to do it in bulk? $\endgroup$ – Pedro Gimeno Mar 21 '14 at 12:53
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    $\begingroup$ You can do that using python. But also maybe you should join all curves together first? $\endgroup$ – Vader Mar 21 '14 at 13:18
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Depending on what you need, scaling -1 in a global direction might work.

enter image description here

enter image description here

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  • $\begingroup$ I tried that before asking. It flips the face and mirrors the curve, so it is equivalent to rotating 180°, thus not solving the mirror problem. $\endgroup$ – Pedro Gimeno Mar 21 '14 at 12:58
  • $\begingroup$ You need to restrict the scale to one direction only (e.g. press S; Z; -1 ). $\endgroup$ – user2859 Mar 21 '14 at 13:23
  • $\begingroup$ Yes, this works too. It failed for me because I tried it in edit mode, but in object mode it works, which is an advantage. It has the drawback that applying the scale reverts the effect, though. $\endgroup$ – Pedro Gimeno Mar 22 '14 at 17:37
  • $\begingroup$ Of cause this is a quick and dirty approach. That is why i wrote "Depending on what you need". For rendering "Front Face" or "Back Face" this should be a sufficient fix thought. $\endgroup$ – user2859 Mar 22 '14 at 20:59

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