In this article we see how to add edge loop to a 3D model to obtain extra geometry allowing us to increase the detail on our model.
In the following video you’ll see a couple method to ADD and REMOVE EDGE LOOPS in Blender.
Adding edge loops to a model in Blender
We start with a 3D model like the one shown in figure 1, what we want is to add subdivisions to the mesh distributed along the cylinder.
Press CTRL+R and move the mouse to the object you want to cut until you see a representation of the new edge loop as shown in figure 2, if you left click on that moment you will create the edge loop, but you can also increase the number of subdivisions by turning the mouse wheel, so you get what you see in figure 3, a certain number of edge loops equispaced along the model.
When we confirm and create the edge loops, the window shown in Figure 4 appears in the lower left corner of the Viewport window, in which we can specify the number of slices and other parameters.
How to remove an edge loop in Blender
Now what we are looking for is to get rid of some edge loops but keep the shape of the object, we start by selecting the edge loop we want to remove (later we will see how to remove several loops at once). A quick way to select an edge loop is to press ALT and click on the edge that is part of the loop we want to select, figure 5 shows where I clicked and the result of the selection.
To remove those edges without leaving a hole in the model what we have to do is to dissolve those edges, so with the edges loop selected we press X and choose the option “Dissolve Edges”, this produces the result of figure 7.
How to remove multiple edge loops in Blender at once
When we want to remove multiple edges with the previous method problems could arise if adjacent edges are selected, as shown in Figure 8, when trying to dissolve two edge loops that are together the result is as in Figure 9.
An alternative is to select edge loops leaving an intermediate loop unselected, as shown in Figure 10.
In this way the problem of figure 9 does not occur and the loops can be dissolved correctly, as shown in figure 12.