Hello, i am buliding some kind of gate or portal. I used the Array Modifier on a block to get stairs and wondered if there is a way to make it decrease per every step. I want the stairs to get smaller to the top.

  • $\begingroup$ Make what decrease every step? $\endgroup$ Jan 19, 2017 at 17:29
  • $\begingroup$ Maybe i am using the wrong term here. I want the stairs to get smaller to the top. $\endgroup$ Jan 19, 2017 at 17:32

2 Answers 2


You may do it using the proportional editing (Linear falloff). enter image description here

Apply the Array Modifier, then select the face of the very top stair and snap the cursor (with the 3D Cursor pivot type enabled) to it (Shift+S-->Cursor to Selected). Enable the proportional editing with Linear falloff type, press S, then set its range using Mouse Wheel. Scale the mesh to the desired size.

NOTE: You may add a shape key before scaling to make the transformation work non destructively. enter image description here

  • $\begingroup$ when you write face, do you mean just the plane on the backside of the highest step as it appears in the GIF? $\endgroup$ Jan 20, 2017 at 17:54
  • $\begingroup$ YUP. As in .GIF :). $\endgroup$
    – Paul Gonet
    Jan 20, 2017 at 19:03
  • $\begingroup$ i finally did it. it´s important to use the y-axis while scaling by simply pressing y. When you don´t do that and don´t use a shape key (also important to press that button and adjust Key 1 to 1 as in the GIF) as in your NOTE it bulges a little, what´s also kinda unproportional. Your way is a little more accurate than using SimpleDeform because the stairs stay horizontal at the sides. By using SimpleDeform the stairs tilt a little to the inside (don´t know if that´s teh proper way to describe it). $\endgroup$ Jan 24, 2017 at 22:40

Add a "Simple Deform" modifier. Then select "Taper" and check either "Lock Y Axis" or "Lock X Axis" . Then adjust the "Deform Factor"

Simple Deform

  • $\begingroup$ That´s exactly what i was looking for. Did you make that GIF? $\endgroup$ Jan 19, 2017 at 18:17
  • 1
    $\begingroup$ Yes, I made the GIF :) $\endgroup$
    – Kidus
    Jan 19, 2017 at 18:25

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