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So here we have
Some curves similar to the curves that we've layed out before and we are going to use these as the
Basis to make
A ring with T-Splines
Like we did before
To make a surface with this
We are going to turn on the manipulator
And then hold down the alt key, drag this up.
You can see now we have
A T-Splines ribbon that looks at heart.
This is just a paper thin surface right now
So to create a volume from it, what should we do?
We'll go ahead and thicken it.
So select the T-Spline, Hit enter
And we can thicken outside or inside
We can type the distance here, but in this case I am going to kind of eyeball it
And just hit enter.
You can see now I've got this thickened heart.
I have my creased edges option on which
I'm not going to want to do here
So I can either undo that
Or I can just select these edges
And hit the remove crease command and remove that crease.
Okay so I have this heart here
And now I need to create the
The main part of the ring. I'll use the same procedure
I'm just going to hold down alt and drag
To get distance here
And by the way, I have just been freehanding this, but if I undo this
And double click
While holding down alt
It lets me enter an exact distance for how long I want this to be
Let's see what two gets us.
Not not too bad.
This two units wide now.
So again we'll go ahead and grab this and thicken
This so we can get a volume here.
Then turn off the crease this time
And thicken that up.
Let's take a look at the final one
We're going to have two of these bands coming down
So to do that we'll go ahead and copy this.
Looks like I need to turn off my egde mode and go to object mode so I can select it.
Let's change to a different viewport.
There we go.
So now we've made a copy of this
And, I'm just going to use the T-Splines manipulator to position these better into where I wanted them
To come into the heart. So I wanted these to transition to the heart at the bottom and the top.
So now that these are in position I'm going to
Use the tsBridge command to bridge these together.
The bridge command works on edges or faces and you can see my faces are kind of small
And skinny here and hard to see
So what we're doing commands that require to use edges or faces and that are hard to make out
I like to switch to T-Splines Smooth Toggle
And I'll just toggle everything
And this give me a boxey mesh representation of what the T-Splines topology looks like.
It just makes it a lot easier to see
Where all the faces are. This makes it easier to use the bridge command easier to work with.
So now that I can see this, I am going to move it a little bit so it is lining up better with the faces.
Go ahead and use the bridge command.
Like we did previously,
With the bridge command, we select one group of faces and then another group of faces
And make sure the arrows are lined up in the right corners
select one segment and hit enter
And we'll do that again here.
Run the bridge command.
Select this face, select this face
Again those are lined the right way so hit enter.
Go ahead and smooth toggle back and see what the model is looking like now.
You can see these are transitioning nicely.
The isocurves are crazy and we'll address that in a second. Let's go ahead and finish bridging first.
I'll switch back to my smooth toggle.
And do this bridge.
Bridge this up.
It's kind of hard for me to see if these are wound the right way
I am going to click here because I know these corners sould be lining up together
and make sure that the arrows are pointing the same way to make sure that bridge is going well. We'll do it again here.
You can also preselect the faces before you go into the bridge command.
And that looks good.
Okay so now we've got the
Topology of this laid out. Let's go ahead and smooth toggle back
And see what our surface is looking like.
Everything is put together but it looks a little bit crazy here.
Whenever you do operations like bridge where you are combining surfaces and it looks crazy afterwards
One thing that I always like to do after that is to run the tsMakeUniform command
You do that by right clicking on the edit layout button
Then after that
It does an amazing job of cleaning up the surface. Look how much nicer that looks.
What that does is it relaxes everything.
We have a really nice smooth surface.
Look these transitions.
Remember this is still a T-Spline so you can still move things around
And the surface updates beautifully.
Just stays nice and smooth there.
Now we have this ring like this
And we want to
Bring these two rings together and join them so they turn into one.
That's another thing that is simple to do in T-Spines Let's go ahead and so that.
First, what I'll do is moves the faces
So they're closer to each other.
I'll do that by making sure that my faces are selected and jsut selecting these
and dragging them over here.
You can see my surfaces is updating smoothly
It has the effect
Of these faces influencing it.
Let's look at these closer.
I can do two things. One, is I can bridge this
If I wanted to create
Additional surface there, but I'm going to go ahead and use the tsMerge command.
I want this to merge nicely.
The tsMerge command
Merges edges, not faces so first I need to delete these faces. So I need to go back to
Box mode by smooth toggling
So I can see the faces easier.
I'm just going to select
These interior four faces on each side
And delete them
By hitting the delete button.
Now we can see we've got a hole there.
Go ahead and Smooth Toggle
You can see while I have these faces deleted at this intermediate step
It looks like a zipper that is waiting to be closed
Once we merge this up it will look a lot smoother.
I'm just going to go ahead and move the faces
A little closer together just because
I want there to be as little moviement as possible when I do the merge.
Now I'll switch to my edge mode.
I am just going to do a selection of all of these interior edges.
Let's go back to the perspective viewport so we can see what I have selected.
I just have all the edges selected I want merged together.
When you select edges before you run the merge command
Both pairs of edges will
Move and be met in the middle. If I was to select one pair and then the second pair
Then the first pair will move to the second pair, but because I selected them both
They will meet in the middle.
So we are in this merge command and you can see,
Wow,
Let's redo that to see what happened.
Here we had everything
Kind of blocked and then after we merge it
Everything is merged together, but quite smoothly. You see here we have
That nice smooth transition so if that's too high for us we can just
Move that down and create a bigger hole there.
So now that we are nearly done with our ring,
We have of all of these areas. We can see that some of these the a little bit pinched and so I can just
Move that
We can adjust that so it is flowing more naturally.
And again, these are the two big reasons why you might consider using T-Splines
One, is that that you can really design while you model. So after you get this ring put together
I can explore
Different variations by tweeking the surface
And the other reason
To use T-Splines is that all of these transitions and blends
They just kind of come as part of the T-Splines surface. So anything that you want
Blended smoothly together you just merge or bridge it and it will be a smooth transition.
One thing that T-Splines does by default is that everything is is really quite smooth.
If you want to tighten anything up
That's when you use something like the insert edge command that we introduced in the beginning.
So I'm going to
Run this insert egde command again.
You can either select one edge or loop, or
You can select an edge ring. I'll go ahead an select an edge ring You can select an edge loop by double clicking to
Select the whole thing quickly
And now you can see, I'll do both sides off and only do it on one side,
Again, as you add in more edges, if I click right here,
The same effect happens
That happened when we were *** the practice. It tightens up the curvature. Let me undo that you you can see the difference.
Can you see that it's very smooth
And then by adding in an edge
Tou can see how it tightens up nicely?
So we can come around the ring
And at every place we want to have a tighter edge we can insert some edges.
On this side of the ring we want it to be a tighter edge
Then we'll go ahead and insert some edges.
A fast way to do some of the selection is if i do paint selection and choose edge ring
you can see how it selects all the edges in a ring here
and the insert edge command can also take that as an input
So, go insert edge,
And run that and as you can see it just tightens that up
So there is still some subltly, but it's a lot tighter than it was
Before. We can go ahead over here
And do that same thing
So, select an edge, select edge ring
And insert edge to tighten that up.
So we can do that here if we want to
Or we can leave this as a smoother interior and have the tighter just on the outside
But now that we have the
T-Spline ring how we would like it
Maybe we can still
Do some more tweaking here.
Just pull this heart down
This bottom down a little bit.
I think we can also tsWeight these egdepoints.
If we weight these points it will
Make it tighter bottom there.
Now the we're done with the T-Spline design, going into Rhino is just a push button conversion.
We can just use this convert button
And I'll right click it to convert to rhino surfaces.
Let me hit F3 so we can show how the surface layout it is here.
Now the T-Spline surface is split up into Rhino surfaces
So you can use any of your Rhino commands on this T-Spline model now.
That's the introductory webinar that we have for your today so
What we've done is introduced some T-Spilnes commands
That by mastering these few T-Splines commands you can create a lot of models that you would like that T-Splines
Is good for.
Then use those to create a ring model.
Our hope is that by using T-Splines you can be able to design while you model
And then also get nice smooth transitions
That make it easy to make design iterations.