How can I FIX that?

Tutorials, Tips and Tricks
1

This problem me feel very uncomfortable. How can I make these lines flat?

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2

I’m trying to work out what you mean. They seem to be facing due Y, so are you asking how to point the camera due X so that they appear completely horizontal on screen?

3

if its the camera, enter frontview with 1 on the numberpad in case you tilted the camera by accident, then return to 3D view.

If its the line itself, you can select it, then scale it by a value of 0 along the X and Z axses.

4

I mean anti aliasing.
images

5

You cant do this in blender 2.79, however blender 2.8 has some AA built into it. Perhaps worth considering changing to 2.8 :slight_smile:

6

Actually, you can affect the drawing of lines in viewport by adjusting the amount of multisampling in user preferences.