Tangent Type
Find it: Click 
The Tangent Type menu allows you to select the type of interpolation
that wil be used to fill in the values between a given keyframe and the
keyframe that follows it. The Keyframe Animator allows you to choose
from the following interpolation types:
-
Constant
-
Linear
-
Hermite (the default)
-
Split
-
Mixed
-
Constant
-
The value remains fixed until the next keyframe. No interpolation is
performed. This type is useful for things that don't change, such as a
blinking neon sign.
-
Linear
-
The value changes linearly from the current value to the next keyframe
value. This type is useful for light rays bouncing off mirrors at equal
angles. For shape animations only, the default interpolation type is
Linear.
-
Hermite
-
The value passes through the key, but it follows a curve whose tangents
are determined by the keys on either end of the segment, and the next
one to either side. This type gives a continuous velocity curve. As an
example, suppose you have four keys (A, B, C, and D). To find a value
on the curve between B and C, the tangent at B is computed as the slope
from A to C. The tangent at C is computed as the slope from B to D. And
the value of the curve is a spline function of those two tangents and
the values at B and C.
-
Split
-
This type is similar to Hermite, but it allows the tangent to be
discontinuous at this point. For example, if B and C are Split, the
tangent at B will be the slope from A to B, not A to C. And the tangent
at C will be the slope from C to D, not from B to D.
-
Mixed
-
The selected keyframes are of different tangent types.
When you have a keyframe selected, the tangent type button shows its
tangent type. If more than one keyframe is selected and the keyframes
have different types, the button shows "Mixed."
You can select a keyframe and change its interpolation type by changing
the tangent type button to the new type. If there are no keyframes
selected, the button label changes to "Default Tangent Type."
The value selected will be used for any keyframes that are created or
changed.
Jump to: