In this lecture, I'm going to show you how to join two objects together as one.
Now, this isn't hard to do.
All you need to do is just select two objects like this
and then use control J to join them together.
The only real question is why did Blender call this object B?
If I go back, you can see that we had object day and object B
and we joined them together.
And for some reason Blender chose one versus the other.
If you understand how and why this works, you'll have much
more control later on when you're joining two objects together.
Because, by the way, it didn't just choose a name.
It also chose one of these two objects, origin.
So if I rotate this thing,
you can see it's rotating at this object's origin versus that one.
So what's going on here?
Let's go back and analyze this a little bit closer.
So what I had done
was I selected Object a first and then I shift selected object B.
When I did that, I made object B, the active object.
Now, there's some visual cues going on here to remind us
which of these two objects are the active object.
Remember?
If it has this highlight behind the icon, that's the active object.
Also, if this dot over here is orange, or more specifically, the lighter
shade of orange, that indicates that this is the active object.
And furthermore, over here in the Object properties tab,
whatever it says here is the active object.
So those three things tell us that this is the active object.
If I were to shift,
click on this object over here again, it'll change that to the active object.
So again, you see the highlight, you see the orange dot
and it now says object over here.
And I can continue doing this over and over again,
whatever the last object is that I selected.
That's the active object.
So let's go ahead and select this one last making object A the active object
and then control J to join that back together again.
And you can see it's called object Day,
and I'm rotating around that object's origin.
Of course, we're not limited to just names and origins.
Everything about the active object is going to be inherited.
So that includes things like the movie, information, materials,
any modifiers it might have had on it, and a whole bunch of other things too.
So there may be a time later on where you wish you had more control over this.
So definitely go in here and set up
two objects like I've done here and try doing one versus the other.
Just select one group of objects.
Make sure you know which one is the active object.
Control data.
Join it together, observe what's happened, maybe rotate this or whatever,
and then undo and try the opposite.
And then again control J, Join them together
and observe the name and the rotation and so on.
Sometimes just understanding the order in which you have to select things
can really make a difference.