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documentation: document interpolation modes

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Erik Faye-Lund 2010-10-30 19:47:01 +02:00
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@ -39,6 +39,22 @@ entire time-domain of the demo. Each row represents a specific point in time,
and consists of a set of key-frames. The key-frames are interpolated over time and consists of a set of key-frames. The key-frames are interpolated over time
according to their interpolation modes. according to their interpolation modes.
Interpolation modes
-------------------
Each key-frame has an interpolation mode associated with it, and that
interpolation mode is valid until the next key-frame is reached. The different
interpolation modes are the following:
* Step : This is the simplest mode, and always returns the key's value.
* Linear : This does a linear interpolation between the current and the next
key's values.
* Smooth : This interpolates in a smooth fashion, the exact function is what
is usually called "smoothstep". Do not confuse this mode with
splines; this only interpolates smoothly between two different
values, it does not try to calculate tangents or any such things.
* Ramp : This is similar to "Linear", but additionally applies an
exponentiation of the interpolation factor.
Keyboard shortcuts Keyboard shortcuts
------------------- -------------------
Some of the GNU Rocket editor's features are available through the menu and Some of the GNU Rocket editor's features are available through the menu and