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So I have a cylinder that I have extruded some other geometry onto. I need a way to bloat the vertical lines of the original geometry. Thanks guys!

I need to turn this:

/ \
|||

Into this:

 / \
( | )
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2 Answers 2

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One way is by using Proportional Editing (O):

  1. Add extra geometry to deform by adding some loop cuts (⎈ CtrlR)
  2. Enable proportional editing (O)
  3. Select a falloff in 3D view > Header. I used the default, Smooth, but you might want to try some other ones and see what you like best. Note that you can change the falloff in the Redo panel (F6) after scaling in step 4.
  4. Select the center loop cut and scale with S. Use MW MW to adjust the distance at which proportional editing will affect other vertices.

enter image description here

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  • $\begingroup$ This was exactly what I was looking for! Thanks for the graphic, it was super helpful. $\endgroup$
    – Hughes
    Jul 16, 2015 at 21:35
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For a quick modeling, I'll suggest to use the "Cast" modifier, with Shpere cast type selected.

enter image description here

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    $\begingroup$ but you have to limit the effect with a vertex group to keep the roof's shape. $\endgroup$
    – Bithur
    Jul 17, 2015 at 5:48
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    $\begingroup$ Yeah, that's right! I thougth the roof was a separate object to be put above. $\endgroup$
    – Carlo
    Jul 17, 2015 at 9:20

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