I have created a simple road using path, array and curve modifiers. As you can see planes on the corner are rotated: enter image description here I would like to create a road which change direction on the z axis but without such rotations. How to achieve that ? Should I first create a flat track and then apply somehow altitude modifications ?

  • $\begingroup$ Have you tried forming the path initially using a curve-path'. Keep it flat to begin with, then bevel it with a rectangle? This will produce a flat and even track that's in effect a square pipe. You convert that to mesh with ALT-C and delete the upper or lower vertices if you don't want thickness/height. Once done, raise and lower it to suit, texture it. $\endgroup$ – Edgel3D Nov 1 '19 at 4:45

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