3

Chapter 6 Keyframes and Curves 547
When different interpolation methods are applied to the different segments of an
animation curve, the methods that are used in the curve appear with a dash next to
their name in the Interpolation submenu (in the Keyframe Editor parameter list). In the
following image, all interpolation methods are applied to the selected curve.
The different interpolation methods are described in the table below.
Interpolation method Example Description
Constant Holds the keyframe at its current value when
applied to a segment or keyframe and then
changes suddenly to the new value when the
next keyframe occurs.
Linear When applied to a keyframe, creates a uniform
distribution of values through the keyframe
from its two adjacent keyframes. When applied
to a segment, creates uniform distribution of
values between the two points.
Bezier Lets you manipulate the keyframe curve
manually by dragging the handles. If multiple
Bezier keyframes are selected, or Bezier is
applied to the curve segment, the handles of
all the selected keyframes are modified.
Continuous This method behaves like Bezier interpolation,
but without access to the handles (they are
calculated automatically). The parameter
begins to change gradually, reaching its
maximum rate of acceleration at the midpoint,
then it tapers off slightly as it approaches the
second keyframe. When applied to a keyframe,
the segments before and after the keyframe
are affected. When applied to a curve segment,
the segment between to the two keyframe is
affected.