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Vertices Virtuosity

Blender 2.8: How to Add a Vertex – Simply Explained

Picture of Niall Mobsby
by Niall Mobsby
Feb 2, 2020
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Vertices are key to adding detail to 3D models in Blender. Find out how to add vertices in Blender through this simple guide!

Blender: Add Vertex

What's a Vertex?

A single vertex in Blender
A single vertex in Blender (Source: Niall Mobsby via All3DP)

In 3D modeling, a vertex is a single point in three-dimensional space. A single vertex has three coordinates, a value for each of the X-, Y-, and Z-axes.

There are several methods for adding a new vertex in Blender, and each one has its own specific use. For example, if you’ve already got an object and want to add detail, adding vertices into edges and faces is extremely powerful. After adding vertices, you can then merge them to join two objects or edges together, creating clean joins.

However, be careful when adding in vertices, as too much geometry can make an object overly complicated or even cause non-manifold edges and floating vertices. If you’re modeling for animation, you always want four vertices for each face, as this helps with deforming during movement.

In the following, we’ll look at a number of techniques for and related to adding vertices. Let’s get started!

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Blender: Add Vertex

Adding by Right-Clicking

A new edge created through right-clicking
A new edge created through right-clicking (Source: Niall Mobsby via All3DP)

The simplest way to add a new vertex in Blender starts in Edit mode. Simply hold Ctrl and press the right mouse button to add a vertex wherever your cursor is located.

To then create a new edge between this vertex and a selected one, hold down Ctrl and press the right mouse button again.

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Blender: Add Vertex

Adding a Vertex to an Edge

Subdividing an edge
Subdividing an edge (Source: Niall Mobsby via All3DP)

Adding vertices to existing geometry is an extremely powerful way to add more detail. Commonly known as subdividing, this allows you to manipulate geometry into much more exact shapes.

Here’s how to add a vertex to or subdivide an edge:

  1. Select an object and hit Shift to go into Edit mode.
  2. Select the edges that you wish to subdivide.
  3. Right-click anywhere in the 3D view to open the Specials menu.
  4. Select “Subdivide”.
  5. In the bottom left corner of the 3D view, an operator panel will appear. Here, you can edit the number of vertices added as well as smoothness and other variables.

This method also works for faces.

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Blender: Add Vertex

Merging Edges with a Vertex

Merging edges by adding vertices
Merging edges by adding vertices (Source: Niall Mobsby via All3DP)

Disconnected geometry in a single object can lead to complicated problems, including non-manifold geometry, n-gons, and weird artifacts.

You can always join meshes together with Boolean operations, but sometimes this leads to unexpected results. It’s a lot more precise to merge edges by adding and merging vertices in specific places:

  1. Using the subdivide method we learned in the last section, add vertices near the point of contact.
  2. Use the “Vertex Slide” function (Shift + V) to position your new vertex as close as possible to the point of contact.
  3. Select one vertex, then Shift + Select the other vertex, and use the Merge function (Alt + M).

Voila! You’ve just merged two edges by adding in a vertex.

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Blender: Add Vertex

Adding a New Vertex as an Object

Installing new add-ons in Blender
Installing new add-ons in Blender (Source: Niall Mobsby via All3DP)

You can add a single vertex as a new object using the “Extra Objects” method. Blender 2.8 comes with this add-on readily available, but you’ll need to activate it.

To do this, navigate to the Edit menu and hit “Preferences”. This will open up a flyout window, which allows you to search through all available add-ons to personalize your version of Blender. In the search bar on the top right, type in “Extra Objects” and click the checkbox next to “Add Mesh: Extra Objects” and close the flyout.

Now, in object mode, you can select “Add > Mesh > Single Vert > Add Single Vert”.

Alternatively, use the keyboard shortcut Shift + A and then navigate through “Mesh > Single Vert > Add Single Vert”.

(Lead image source: chocofur via YouTube)

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License: The text of "Blender 2.8: How to Add a Vertex – Simply Explained" by All3DP is licensed under a Creative Commons Attribution 4.0 International License.

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