Using the knife tool on a plane (mesh) makes the cut incorrectly connect to the vertices irregularly I am a blender newbie and have been trying to figure out how to correctly cut a plane so I can mask a foreground object in my project. Whenever I use the knife tool to make a cut into the plane, points connect with the top vertices of the entire plane which messes up my cut. Even if you don’t understand my specific problem, walking through how to cut this step-by-step would be greatly appreciated!
Alright, I honestly don't understand what you are asking. But a quick way to get any flat shape cutout is to delete all but one vertex. Then you can press E to extrude another vertex. These will be automatically connected. Make sure you are in vertex select mode by pressing 1 on the top row, or by pressing the vertex button. Then at the end, you can select your first and last vertex and press F to merge them. Then take all the vertices one side and press E to extrude them and they should extrude into faces. Now you can flatten all the vertices by pressing &quot;S&quot; for scale and pressing Zero. This will automatically shrink all your points into one, press either &quot;X, Y, OR Z&quot; until you get the one that you want. Pressing these will scale only on those axes.