- [Instructor] There are two types of blend surfaces
that I want to talk about.
One of them is in Generative Shape Design or GSD
and you should already be familiar with that.
We'll go into Generative Shape Design
and blend
curve support curve support.
In this case I'm just going to pick this edge
and select the support.
Pick this edge and select the support.
And preview.
I can control the way the surface transitions between
these boundaries.
Currently it's Tangency.
I can go to curvature
and then also define what happens
off of these corners.
Change this to None and Preview.
You can see the shape has changed here
and it is no longer tangent.
It is curvature.
I can do the same thing at the other end.
And once again you can see the surface shape has changed.
I cannot control the orders.
I cannot control the complexity of the surface.
The surface is derived by it's inputs.
The system defines how much math is necessary
and it retains that blend
and as you can see it is a parametric surface.
Let me go ahead and hide that.
I'm going to go back into FreeStyle.
And in the Freestyle we have the FreeStyle blend surface.
And with this I pick near the edge that I want.
Once again I pick near the edge.
You can see an indication of which edge is going
to be selected
and it creates that surface.
With this I can grab one of these handles
and indicate where if I only want a partial blend
along one of those edges.
I can go to this tangent.
Right mouse click.
And say curvature.
Same thing here.
Curvature continuity.
And once I create this surface,
I'm going to select okay.
You'll notice that it creates a NURBS surface
so there is no history on that surface
but I can now use the surface to do matches with
and again control the surface using
the control polygon tool.