A multisided blend surface "fills in" the edges defined by three or four other curve or surface sub-objects. Unlike a regular, two-sided blend surface, the curves’ or surfaces’ edges must form a closed loop; that is, they must completely surround the opening that the multisided blend will cover.
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Select a NURBS object. >
Modify panel > Create Surfaces rollout > Dependent Surfaces group box > N Blend
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Select a NURBS object. > Modify panel > NURBS toolbox > (Create a Multisided Blend Surface)
Multisided blend between three other surfaces
Tip: If the multisided blend surface can't be created, fuse the points or CVs at the corners where the surfaces meet. Sometimes snapping the corners doesn't work, because of round-off error.
Procedures
To create a multisided blend:
- In the NURBS toolbox, turn on (Create A Multisided Blend Surface).
- In turn, click the three or four surface sides or curves that surround the opening.
You can flip normals on the multisided blend while creating it.
- Right-click to end creation.3ds Max creates
a new surface that covers the opening.
Interface
Multisided Blend surfaces have no parameters other than those on the Surface Common rollout.