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I want to make a transition from an Oval shape to a square shape on the selected face (Screenshots are attached below), in my model. How could I do that? Sorry if I caused any inconvenience I am quite new to blender.

enter image description here

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2 Answers 2

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  1. Select all the edges on one side of the face (all the ones on one arc)
  2. Hit S then X then 0 then Enter - this scales the edge selection to 0 on the X axis, essentially bringing them all in line
  3. Move the selection to the desired position on the X axis
  4. Repeat on the other side
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  1. Select the geometry you want to cast to a square.
  2. Assign it to a vertex group Group.
  3. Select a face that will define the "square". ⬆ Shift+S, T to snap the 3D Cursor to the center of that face.
  4. In Object mode, ⬆ Shift+A, E, A to add an empty.
  5. Enable snapping in Face Project mode, enable Align Rotation to Target.
  6. G Move your empty and snap it on the same face as in p. 3. Now ⬆ Shift+S, E to move it back to 3D Cursor.
  7. Select the mesh object again and add a Cast modifier:
    • Shape: cuboid
    • Axis: X Y
    • Factor: 1.0
    • Vertex Group: Group
    • Size: [your choice]
    • 🟩 Size from Radius disabled
    • Object: Empty
    • ✅ Use Transform enabled
  8. Select the empty again, R, Z, Z to adjust the square alignment.

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    $\begingroup$ That's a great way of tackling the issue! Especially if the selection is rotated. $\endgroup$
    – oaaya
    Nov 17, 2022 at 10:16

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