Long name (short name) 
Argument types 
Properties 
cutoffFrequency(cof)

float



Defines the cutoff frequency (in Hz) for the Butterworth filter.


endTime(e)

time



Specify the end time of the section to filter. If not specified, the last
key of the animation curve is used to define the end time.


filter(f)

string



Specifies the filter type to use. The avalible filters are:
butterworth
euler (default)
gaussian
keyReducer
peakRemover
keySync
resample
simplify


keepKeysOnFrame(kof)




When specified, a secondary filter pass is applied to position keys on whole
frames. This flag is only supported by the Butterworth filter.


kernel(ker)

string



The resample kernel is a decimation resampling filter used to resample
dense data. It works on the keyframes and may not produce the desired results
when used with sparse data.
The resample filter converts from either uniform or nonuniform
timestep input data samples to the specified uniform timeStep. Various
time domain filters are available and are specified with the kernel
flag which selects the resampling kernel applied to the keyframes
on the animation curves.
Kernel Values
closest 
Closest sample to output timestamp 
lirp 
Linear interpolation between closest samples 
box 
Box filter: moving average 
triangle 
Triangle filter: (1  x) weighted moving average 
gaussian2 
Gaussian2 Filter: (2^(2x*x)) weighted moving average 
gaussian4 
Gaussian4 Filter: (2^(4x*x)) weighted moving average 
This filter is only targeted at decimation resampling
 interpolation resampling is basically unsupported. If your
output framerate is much higher than your input frame rate
(approximate, as the input timestep is not assumed to be regular)
the lirp and triangle will interpolate (usually) and the rest will
either average, or use the closest sample (depending on the
phase and frequency of the input). However this mode of operation
may not give the expected result.


keySync(ks)




When specified, a secondary filter pass is applied that adds a key to sibling
curves (X,Y,Z) for each key that is encountered. This flag is only supported by the
Key Reducer filter.


maxTimeStep(mxs)

float



minTimeStep(mns)

float



period(per)

float



precision(pre)

float



Defines the precision parameter.
For the Key Reducer filter, this parameter specifies the error limit between the
source and output curves. Greater values reduce precision. Lower values increase
precision.


precisionMode(pm)

int



Defines whether the precision value should be treated as:
0: An absolute value
1: A percentage.


preserveKeyTangent(pkt)

string



When specified, keys whose in or out tangent type match the
specified type are preserved.
Supported tangent types:
fixed
linear
flat
smooth
step
clamped
plateau
stepnext
auto
This flag is only supported by the Key Reducer filter.


sampleCount(sc)

int



Defines the Gaussian filter kernel dimension.


samplingRate(sr)

float



Defines the rate at which keys are added to the Butterworth filtered curve in
frames per second (FPS).


selectedKeys(sk)




When specified, the filter is only applied to selected keys. This flag
supercedes the startTime/endTime specification.


startTime(s)

time



Specify the start time to filter. If not specified, then the first key in the
animation curve is used to get the start time.


timeTolerance(tto)

float



tolerance(tol)

float



useQuaternion(uq)




Enable to use quaternion instead of euler.


width(w)

time



Defines the width of the Gaussian filter.

