8

820 Chapter 8: Modifiers
Spherify shapes the dog inside the snake.
Thesuccessoftheoperationdependsonthe
topology of the geometry to which it ’s applied. For
example, a cy linder with no height segments will
result in little change. Adding height segments
will result in a barrel at 100 percent. Adding cap
segments will produce a sphere.
Tr y this on a
teapot (page 1–178) .
Pr ocedur es
Ex ampl e: To us e the s pheri fy modi fi er to di stor t a
teapot:
1.
Click Create > Geometry > Standard
Primitives > Teapot.
2. Create a teapot in the viewports.
3. OntheModifypanel,chooseSpherify
from the Modifier List.
The teapot should now look like a sphere.
4. Adjust the Percent setting to less than 100%.
Example: To animate spherifying a teapot:
1.
Click Create >Geometr y > Standard
Primitives > Teapot.
2. Create a teapot in the viewports.
3. OntheModifypanel,chooseSpherify
from the Modifier List.
4. Turn the Auto Key button on.
5. SettheSpherifyPercentto0.
6. Movethetimeslideraheadtoframe30.
7. Set the Spherify Percent to 100.
8. Turn the Auto Key button off.
9. Drag the time slider to play the animation, or
press Play.
Interf ace
Percent—Sets the percent age of spherical
distortion to apply to an object.
Spl ine I K Cont rol M odif ier
Select a spline or NURBS curve > Modify panel > Modifie r
List > Spline IK Control
WhentheSplineIKControlmodifierisappliedto
a spline, you can selec t and transform its vertices
w ithout h aving to access the vertex sub-object
level. It can also place helpers at each vertex
location to aid in moving vertices.
TheSplineIKControlmodifierworksbyplacing
knots (cont rol points) at each vertex. The knots
can then be used to control ver tices, which in turn
reshape the spline.
This modifier also works on NURBS curves,
placing a knot at each control point or control
vertex (CV).