0003 Blender Components Video Lecture | Learn 3D Modelling: The Ultimate Blender Guide - Software Development

all right so let's get started by going
into a new scene and this is an object
it's made up of three things vertices or
vertex if you're talking about a single
one edges and faces you can hit tab and
you can get into the mode of
manipulating all three of these pieces
of geometry and you can go down here to
vertex edge or face now faces we'll get
started with that faces if you click on
it there is only one direction for a
face I'm gonna tell you that now because
that's very important with 3d printing
only one direction if you hit n on the
keyboard you can go down here to the
normals and you can go like that and
then up the size of the normal so right
now these normals are facing out and
that's good if they were facing in that
would be bad because if you were ripping
this for 3d for 3d print it can't
distinguish the face okay and it uses
the face to understand the rip so you
don't want to do that you want to make
sure that this is facing out always how
you do that is just basically go over
here and you'll see flip direction now
it might not seem important just yet but
as you go on to understand mirror mirror
will flip these automatically I just
want to make sure that you know what a
face Direction is and what a face normal
is right off the bat so turn them off
they're really annoying to look at other
than you know at the very end when you
get done with your mesh you should be
very aware of what direction your face
normals are if you're having problems
the next one is edge and if I can click
on an edge just like that now every
component can be scaled
rotated and translated so wer allows me
to do that so in this case if I wanted
to scale this edge I can scale it on X I
could scale in Y or I can scale on Z but
right now since I only have one of these
highlighted I can only scale in one
direction when you have many of them by
holding shift you can start scaling in
other directions and some might not seem
important let's say I want to try try to
do this to it well I can't do that but
if you go like this let's say I take one
edge hit W on the keyboard and raise it
up and then hold shift and grab the
other edge if I ever want to level this
out
I can go to R and now scale it and I
have to scale it a couple times and
sooner or later what's gonna happen it
levels perfectly out so you have to do
about three or four times and
automatically you have a nice flat
surface trust me in the heat of battle
that is a very very handy thing so I'll
show you why here in a sec let's go to
vertex so let's hold shift and grab a
couple of these vertices hit W on the
keyboard and move them out let's take
this one and move it all the way out to
here and then I have this weird thing so
let's try to straighten this out if I
click and drag I get a marquee selection
but notice when I Marquis select here
and then rotate around it never got this
vertex okay because there's a couple
different modes here in blender there's
one that shows backface or limited
selection and one that does not so if
you go like this you can see that vertex
now by clicking this little button
then marquee select and you can get a
hold of it now tackling this on and off
is a pain I much prefer Z on the
keyboard Z will toggle between wireframe
so I'll toggle between wireframe grab
that vertice and then go like that now
if you hit R on the keyboard in the
direction that I need to flatten it out
I can all I do is have to go like this
do it a few times and it should be
perfectly straight again if your hopes
to go into the perspective and only use
perspective that's a good nice little
trick to know if he had seven on the
keyboard you go like this and you can
jump into the top view hit Z grab all
the vertices and go like this again if I
didn't hold Z this is what would happen
so notice I can highlight these two
vertices if I hit seven and go like this
and then go back sometimes these bottom
ones will not highlight because let's
say this was off kilter to the point
where it might have select or get in a
way of geometry this limited selection
might be off I can go like this
and then all of a sudden look Devers he
never got highlighted so practice this
for a second practice just you know stop
the video move geometry around a little
bit and try to fix it I can tell you
that that it's very helpful to
understand at the very first on side of
things before you go making a monster
understand how to straighten things out
or fix it okay now selections which are
going to be handled in the next little
part here but for right now this is how
you move components and how you get into
component