Newbie to Blender here.

I'm wondering how to get some knife-cut edges to follow a more precise path along the black doorway section of an "image-to-plane" piece I have here.

Is it possible to add a bezier curve to an edge in edit mode? If not, what workarounds would you recommend I try to trace around this door? Thank you!

enter image description here


1 Answer 1


You can apply a bezier curve to a plane using the knife project tool.

Heres my process:

As a separate object, make the curve that you want (mine is pretty bad for a door): curve

Next, covert the curve to a mesh using the "convert to" tool:


Now, select first the curve mesh, and then the plane, go into edit mode, and do knife project:


The knife project does it from your view, so you want to use align view to make sure you are looking at the plane head-on.

Now, you will have the curve cut into your plane:


  • $\begingroup$ This worked like a charm! Thank you for your help!! $\endgroup$
    – Hones
    Mar 19, 2020 at 15:34

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