Adding Extrusion
Last updated
Last updated
Extruding is one of the most common modeling tools to help us shape and build geometry for our mesh object. You can use extrusion to shape and form a rig to the desired shape. And so in this guide, I'll show you different extrusion methods and how to fix the mesh afterward.
In this example, I'll show you how to extrude the tie in this model and make it 3 dimensional using the manual extrusion method.
Select the mesh you want to extrude, set it to local view with /, go to Edit Mode, and select the faces you want to be extruded to.
Press Alt+E and click on the Extrude Faces Along Normals option. After that, you can just move the mouse to extrude or use the Offset setting in the operator panel. Also, enable the Offset Even setting to improve corners.
In this example, I'll show you how to give thickness to this suit model using the solidify modifier.
Select the mesh, go to the Modifier Properties tab, click on the Add Modifier button or use Shift + A while your cursor is on the Modifier Properties tab, and add a Solidify modifier.
On the solidify modifier. Set the Offset setting to -1 or 1 depending on if you want to extrude the mesh inward or outward.
Use the Thickness setting to set the extrusion thickness. Also, enable the Even Thickness setting to improve corners. Optionally, enable the Only Rim setting if you want to remove the inner faces.
When you're done, you need to apply the solidify modifier. This is so that it won't cause any deformation issues. To apply it, select the ⌵ icon on the panel header, and then select Apply. Note that it is recommended that you move the modifier above as the first stack before applying it so it won't cause any issues.
After doing an extrusion, you might encounter warping and smoothing issues on the edge of your mesh. Here's how to fix them.
Go to Edit Mode, select the edge with the warping issues, and then use the Mean Crease setting in the Sidebar > Item. This make sure that those edges are always sharp even with the subdivision surface modifier on. Also, don’t crease every edge and only crease the outside edge. This way parts that do need to be smooth are always smooth.
After that, right-click, and then select Mark Sharp. This is to fix any smoothing issues by marking those edges sharp.
After doing an extrusion, you might find texture issues like this in the mesh after extrusion. Here's how to fix it.
Go to the UV Editing workspace and select the faces with the texture issues.
In the UV Editor, move the selected faces UV to the correct pixel.
