The extruder tool is one of the fundamental tools for modeling,
but what is the extrude tool?
Well, allow me to simply show you
if you select the face and click the extruder tool in the quick tools menu,
you'll see this Yellow Gizmo.
This is a normal axis manipulator,
but what does that mean?
Well,
it certainly doesn't look normal and that's because normals
are a type of vector related to face.
Is
simply put. The normal is the vector that sticks out perpendicular
to the surface of a face.
If we go ahead and left click drag this manipulator,
you'll notice that it duplicates the face and moves it along the normal axis,
but it also creates new edges and faces between the original face
you had selected and the new duplicate face to maintain a connection.
This is extruding.
You can also left click drag anywhere else in the view port instead
to move the extrusion along your viewing plane.
You can do this for all types of selections, including multiple faces,
vortices and edges.
However, if you select multiple faces that point in different directions,
you'll notice that your manipulator is pointing at sort of an
average value of where all your selected faces are facing.
Keep this in mind as well. Come back to it later.
It's important to note that if you right click while dragging the manipulator,
you can cancel the extrude but it will not remove the duplicate faces.
This is intentional as it allows you to create new
geometry at the same location as the originally selected geometry.
This can be very helpful when wanting to scale or rotate your extruded mesh.
For example, what if we wanted to create a stack of connected cubes,
you could simply extrude
right click cancel and press s to scale your extrusion down.
This will then let you extrude again and confirm to create the new smaller box.
This was made super easy by the fact that the extrusion cancel
brings the extruded geometry down back to the original cube surface.
However, if you do this on accident and you want to remove the extrusion,
just make sure you press control Z to undo it properly
for hot tea users simply press E as an extrude
to begin moving the extruded selection along its normal vector.
Right click will do the same thing I mentioned before,
and left click will confirm your extrusion.
But the extrude tool has a few more tricks up its sleeve.
If you click and drag the extrude tool icon in the quick tools menu,
it will open up a sub menu with more extrude options.
The first option is our default option. So we'll skip that.
But our next option is called extrude along normals.
This is what you might prefer to use if you select multiple faces.
That point in different directions.
This will allow you to sort of push the geometry outwards along each individual
faces normals but still keep the face is connected to each other after extrusion,
this is great for adding a layer of thickness to your mesh. For example,
the next extrude sub tool is the extrude individual tool.
This is extremely helpful for making certain
faces extend out independently from its neighbors.
For example, you could use this to create spikes or stylized bumps on the surface.
Quick tip. This tool works best when faces are selected,
not floating vortices or edges.
The final extrude tool is very powerful and easy to use.
It's called the extrude to cursor tool and
allows you to extrude your selection and extend it
to the location of wherever you left click in the view port.
This will still be a longer viewing plane but allows you
to work very roughly and quickly when you need to.
For hockey users.
If you're in edit mode,
you can actually access the extrude to cursor tool at
any time by simply holding control and right clicking.
Now that we've learned about the extrude tool,
I'm going to go ahead and show you how to make that chair I made earlier.
This is what we want to make and here's how we do it with the extrude tool,
simply select your cube, go into edit mode and scale the cube down along the Z axis.
We will then use the loop cut tool which will be covered in its own video
to make some additional cuts on our cube.
To use the loop cut tool,
simply select it on the quick tools menu and
left click drag to create a tic tac toe pattern
Like. So
this will then allow us to use our extrude tool.
Using face select mode,
select the faces you would want to use to form the back
of the chair as well as the legs of the chair.
You can then go to the extrude tool and select the sub tool
extrude along normals,
then simply left click drag to bring out both the
chair back and the chair legs at the same time.
Mhm.
To you've officially modeled something in blender.