Blender 2.7 Tutorial #5 : Intro To Edit Mode #b3d Video Lecture | Learn and Master: Blender (English) - Professional Skills

hello italo's bar five of these series
how to use blender 2.7 in this video i'm
going to be introducing you to edit mode
within blender which allows you to model
custom objects and custom shapes now
this is one of the largest areas of
blender how to create basically anything
you want as a 3d model in a 3d
environment to create any object that
you want in blender you have to start
with a basic mesh and most often this
basic mesh is a cube and that's why when
you first load up blender blender gives
you a cube and your scene to start with
you don't have to start with a cube but
that's one of the most common ways to
start an object because sorry with a
cube is called box modeling now to model
any shape that you like you have to have
a mesh selected and it can be any mesh
it can be a cylinder or cone or even a
Suzanne monkey head and the way you get
into edit mode is with a mesh selected
you press tab and when you press tab you
switch into edit mode and you can press
tab to go out of edit mode alternatively
you can always go down to the bottom
header bar of your 3d viewport and not
actually sure that you can actually see
this in youtube so I'm going to just
make a second window in case it's
cutting the bottom part of the window
off on the header of the 3d viewport you
can also switch between these two modes
on a mesh with this menu you can switch
between edit mode in object mode there
are many more modes we're not going to
talk about those in this video
or sticking with edit mode and when you
press tab or use the menu to switch into
edit mode you'll notice that your header
of your 3d viewport will change when
you're an object mode you'll see a bunch
of squares and a grid these are layers
within blender but if you press tab to
go into edit mode you'll see four new
buttons in place of those grid of layer
buttons you'll see a button that is
currently selected to be able to select
vertexes so with this mode selected you
are able to select the points or any two
edges meat on the mesh of a model when
you go into edit mode you're able to
basically edit vertices and the next
mode is edges
next mode is faces otherwise known as
polygons to be able to make any mesh you
want into any other shape that you want
to be able to edit that mesh so with in
edit mode everything in terms of
selecting objects is exactly the same if
you want to select a face you have to be
in face left mode and you can right
click on it to select it whenever you
have any of the three different sub
elements vertices edges or faces
selectable or in that selection mode you
can right click and select it and then
use your gizmo or your keyboard
shortcuts s R and G to move rotate and
scale or grab rotate and scale that
element so if I want to select multiple
elements and in other words multiple
vertices I can do that with the shift
and right click and then I can move
those things I can go into I'm just
going to press ctrl Z to undo I can go
into facelet mode and squash my cube
very easily I can scale it to make it
more like a pyramid and I can select any
of these things that I want and you know
move them around and rotate and do any
kind of transformation that I want
please note though that you cannot scale
or rotate a vertex because our vertex is
just one coordinate in 3d space it's
where two things join you are able to
move it in 3d space because it is a
coordinate but if I try to rotate it it
does nothing ever to scale it with the S
key it does nothing as well again
because it's just a coordinate so when
you're first getting into a blender edit
mode you should practice selecting these
three things and be able to move and
scale them and rotate them and
manipulate them as you please the last
of these three or four buttons is this
limit selection to visible button what
the heck does that mean well what it
means is when it's dark your object will
be solid or not see-through if I click
this button to make it light in other
words light can now pass through my
object and now as you can see I can see
the other sides with the back sides of
my mesh now my mesh is very simple right
now it's just basically a distorted cube
which means it only has six
lights it only has four six faces rather
it only has 12 edges and it only has
eight vertices so it's very simple but
if I you know how very complicated mesh
being able to see through a mesh by
default it's not a good idea because you
might accidentally select faces in the
back when you didn't mean to so it
depends what you prefer in what
situation you're in whether or not you
want to have your mesh solid or
see-through with that fourth button so
that is an introduction to edit mode the
next thing I wanna show you is how to do
extrusions but before I do that I'm
going to go up to file and new and
reload my startup file and we'll start
with a default cube again my analogy for
using the extrusion or the extrude tool
is if we think of this cube as a house
my house has four walls and it has a
floor and a ceiling so it has six faces
or six walls in total and let's say I
want to make a garage on the side of my
house well I'm gonna press tab to go
into edit mode and I'm going to extrude
out in other words build upon or make an
extension from one of my side walls so
if I want to build a garage what I need
to do with a face selected in face lock
mode is tap E and then move my mouse
away from the house and as you can see
if I tap to even let go and move my
mouse I made an extrusion and when I'm
happy with how far away the original
qubit is in this case I'll alter a bit
right there and I'll click and now I
have more geometry here I've extended or
extrude out a new set of faces and
vertices and edges from my original cube
so this is really powerful I can keep
going with this in fact you know once
you're happy with it or not happy with
it you can always adjust it and scale it
to your heart's desire but I have to
keep going with this and you'll see how
extrude will let you make really kind of
the basics of any shape that you like if
I keep on extruding so I'll press E
again now just a warning here if you
press E and then right-click that
extrusion will be there but it's not
pulled out at all right clicking is not
really a good idea because it's
snaps back your extrusion it's still
there but it's hiding and if you just
kept on going from that point you'll see
that I now have a double edge right here
now normally you wouldn't even see the
gap between them because it would be
snap back to the original location which
is what happens when you right-click so
if you ever accidentally see extra dots
around your edges that means you have
hidden geometry and that's bad
in a future video I'll talk about how to
get rid of duplicate vertices or
duplicate faces but for now you should
always just press ctrl Z to undo if you
see those until they go away all right
I'm going to keep going and model a
custom shape or an object
ina press e again move out a little bit
now it's important to note and I'm going
to undo that
if you press E you can decide how far
you want to extrude so I'm now tap to e
and now I'm going to tap the number 2 on
my keyboard and press Enter
what that did is it extruded that face
to blender units because the default
cube is 2 by 2 by 2 so Y pressing E and
then 2 and then enter it made an exact
extension of the exact same size of a
cube now I want to do that with the
middle one but that's ok I'll forgive
myself I'm not going to be that accurate
in this video so now I'm going to select
3 at the same time and extrude 3 at the
same time so we'll shift-click I'll
select the second 3 I'll select one and
then hold shift and right click the next
two if I now press E is going to extrude
these 3 as a group and the important
thing to know here and I'll press 2 and
then enter is that it did not make
internal geometry also that again it did
not make internal geometry what that
means is that there are no internal
walls you do not see dots floating in
the middle of this these three cubes
because I select them all and press E if
I had extrude each one of these
separately e to enter e to enter you
would have seen that if I moved one of
these faces around that I actually still
do have those internal walls an internal
geometry or a total faces is a bad thing
you don't want to have internal geometry
if you don't mean to have
so if you're extruding multiple ones
together they will not be internal
geometry I'm going to press E and then
two and more time to make a three by
three by one object and now I'm going to
extrude out these bottom four all at the
same time because they're separate they
will they will just extrude normally and
if you can't tell I'm going to make a
chair so I'm gonna select these top
three if you feel more comfortable not
having your mesh in see-through mode
then you can do that that way you won't
accidentally select background faces and
I'm going to extrude these up and as you
can see I have a chair now I can press
tab to go back into object mode and I
can now take my whole chair and scale it
and rotate it as one object and I have a
chair that I can use in a scene and I
can keep adding to it if I want but
that's the next thing we're going to
talk about now that I have a very blocky
shape how the heck do I make this look
like a better chair it's a very blocky
some would say a Minecraft chair how
would I make this better
well I'm going to go and restart my
scene again so I'm go to file new and
reload startup file how can I make this
block now return to our house analogy
into a better looking customized house
because a house would not just maybe
have just the same size of a cube
extruded to be a garage and maybe there
would be like you know different parts
of the roof that extrude from different
parts of the same mesh the next tool and
the last one I want to show you in this
video is the loop cut tool and this is a
very very powerful tool if I press tab
to go into edit mode what I want to do
here start to subdivide this shape up
and one of the best ways to do that and
there are multiple ways to do it is you
can press ctrl R and you can do it
within any of the three selection modes
for to see edges or faces it doesn't
matter which mode that you're in if I
press ctrl R with in edit mode and put
my mouse over the mesh you'll see this
pink purple line go all the way around I
mash depending on where I put my mouse
if you put your mouse over an edge it'll
cut or all the way around that mesh
with that pink line so what this does is
if you then click and then you can move
your mouse to decide where your cuts
actually going to go if you click a
second time it'll make the cut permanent
so now I have a mesh with more edges I
have more edges that I can play with I
can modify my mesh in more ways because
I've basically made a subdivide around
my mesh through all these phases and now
I have many more faces many more
vertices and many more edges to play
with to make a custom shape I'm going to
undo that with control Z I'm gonna do
that one more time I'm gonna use a
slightly different option this time I'm
going to press ctrl R again and I'm
going to click because I want to make it
around you know this way the way I'm
doing it right now and I'm going to
click to make that cut permanent but now
I get to decide where it goes along this
edge just by sliding my mouse when I
click it makes this cut permanent but if
I right click it snaps it to the middle
of these edges so if you want to exactly
centered you know front to back in this
case or side to side in this case you
can just right click instead of left
clicking so again control our movie mess
around click and then right click to put
it in the center of that edge so that's
using the loop cut tool but there's even
more we can do with it if I press ctrl R
to get my loop cut up and I scroll up I
can get more cuts now here's a warning
this is dangerous you can go really
crazy with this and you can add a lot of
cuts at the same time I would never do
that I would never do more than a few
cuts because you know when you're
modeling it's not a good idea to make
your mesh really complicated before you
do anything to it it's a good idea to do
things in small steps so I'm just going
to make two cuts and then I'm going to
right click to put those right in the
center and now what I might do is I
might select 4 edges and these in this
case in fact what I'll do is I'll switch
over to a see-through mode and I'll
select those 4 which form an edge loop
and I'm gonna pull them over a little
bit this way now I'm going to select
these four edges whoops and move them
over this way a little bit now if you're
more familiar with linear
and a complete beginner net abode you'll
know that there are much faster ways of
me doing this but I'm just keeping it
simple with what we know so far in terms
of this video series so now I've got
these edges that I can play with
in fact I'll make another loop cut
around in the other direction right
there and I'm going to click and right
click and I'm going to pull the roof up
of my house so I'm going to pull that
one up like that before I do that though
I'm actually going to undo I change my
mind a little bit
I want a garage to come out of my house
but I don't want to be the full height
of the house so I'm going to make a loop
cut around the cube this way and then
I'll move it up to right about there so
I'm going to make an extrusion from this
point that's going to be about where my
garage sticks out of my house and now I
can move my roof whatever that Pro the
roof is called up and so now we're
seeing how we can make you know custom
shapes by making decisions about how I
subdivide up using loop cuts my default
cube I want the roof of my garage to be
sort of in the same style but I want the
edge to be going side to side on my
screen right now so I'm going to use
ctrl R again and make my cut all the way
around the house in this direction so
I'll click and then right click to put
it in the middle and I'm going to grab
this top edge and pull it up right about
till there and so as you can see we
start with a cube but we're able to make
custom shapes I'm going to do one more
example of this I'm going to do a
control or loop cut around my house in
this direction and I'm going to make
sort of like a breakfast nook at this
side of my house so I'm going to take
I'm gonna switch in to face select mode
I'm going to take these two faces and
I'm going to extrude note a little bit
as if I were making a little bit of a
breakfast look at the side of my house
you can keep going with this obviously I
can do a loop cut around the base of my
house and I can do a loop cut you know
are right about there and loop cut right
about there and if I want a step or a
pork at the front of my house I can
drew that out so as you can see you can
start with a cube and quite quickly have
something that does not resemble a cube
at all
this is the basic principle of box
modeling we're going to continue this in
the next video in which we're going to
model something that's not box you like
this at all we're going to model a
cartoon characters head that's going to
be it for this video thanks for watching
and I'll see you next time