I am trying to model human eye. I am following this tutorial. My current design looks like this:

My Current Design

At this point, I need to create the pupil of the eye. But even the closest loop to the center of the eye is too large. I want to add one or two smaller loops in order to keep the pupil small.

The problem is, I can add loop cuts anywhere on the sphere, but I can't add a loop cut around the pole.

Adding loop cuts away from the pole is possible: Adding loop cut away from the pole

But adding loop cut around the pole is not possible. I just tries to add new vertexes on the single edges: Adding loop cut near the pole

I tried adding single vertexes one by one by using Ctrl+R, then selecting every adjacent two vertexes one by one and connecting them with edges by using the F shortcut key. But this method didn't create separate faces on the sphere.

What is the proper way of doing this?


1 Answer 1


You can inset, select all these vertices and press i:

enter image description here

You could also slightly bevel the edge loop and scale or slide the inner one:

enter image description here

You also have Offset Edge Slide ShiftCtrlR:

enter image description here

As Jakemoyo suggests, you can also create a bevel on the central vertex: Select it and press CtrlB then V to switch to vertex bevel:

enter image description here

  • $\begingroup$ Thanks, it worked. I swear I tried insetting, but I didn't select the pole vertex, so it didn't work when I first tried. The pole vertex must be selected for this method to work. $\endgroup$ Apr 15, 2022 at 10:46
  • $\begingroup$ you could also slightly bevel the edge loop and scale the inner one $\endgroup$
    – moonboots
    Apr 15, 2022 at 11:03
  • $\begingroup$ I would recommend using Ctrl+Shift+B (or Ctrl+B, V) to bevel the top vertex to create the edge loop. Rather than slightly beveling the final loop, that can cause distortion and loss of the "perfect" state of the sphere. $\endgroup$
    – Jakemoyo
    Apr 15, 2022 at 11:16
  • $\begingroup$ @Jakemoyo, yes but it creates a ngon so I guess it depends on what he wants $\endgroup$
    – moonboots
    Apr 15, 2022 at 11:23
  • $\begingroup$ @moonboots Well, everything is triangles under the hood, and turns to quads when you add a subdiv modifier. "If it looks good, it is good" is my motto. $\endgroup$
    – Jakemoyo
    Apr 15, 2022 at 12:10

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