S Curve CHOP

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Summary

This CHOP generates S curves.

PythonIcon.pngscurveCHOP_Class

S Curve CHOP on Old Wiki



Parameters - S Curve Page

Curve Type type - - What Curve Type to Generate.

  • Half Cosine halfcosine -
  • Logistic log -
  • Arctangent atan -

Length length - Set the number of samples for this CHOP.

Prepend prepend - Add this number of samples to the beginning of the curve.

Append append - Add this number of samples to the end of the curve.

Steepness steepness - Controls the steepness of the S Curve.  

Linearize linearize - Control the amount of cruvature in the curve.  

Bias bias - Move the curve's bias backward or forward.  

From Range fromrange- - Specify the low and high range of the input index.

"" fromrange1 -


"" fromrange2 -

To Range torange- - Specify the low and high range of the curve.

"" torange1 -


"" torange2 -



Parameters - Channel Page

Channel Names channelname - You can creates many channels with simple patterns like chan[1-20], which generates 20 channels from chan1 to chan20, or t[xyz] which generates tx, ty and tz. See the section, Common CHOP Parameters for a description of this and all Options. See Scope and Channel Name Matching Options.

Sample Rate rate - The sample rate of the channels, in samples per second.  

Extend Left left - - The left extend condition (before range).

  • Hold hold -
  • Slope slope -
  • Cycle cycle -
  • Mirror mirror -
  • Default Value default -

Extend Right right - - The right extend conditions (after range).

  • Hold hold -
  • Slope slope -
  • Cycle cycle -
  • Mirror mirror -
  • Default Value default -

Default Value defval - The default value for extend conditions.  



Parameters - Common Page

Time Slice timeslice - Turning this on forces the channels to be "Time Sliced". A Time Slice is the time between the last cook frame and the current cook frame.

Scope scope - To determine which channels get affected, some CHOPs use a Scope string on the Common page.

Sample Rate Match srselect - - Handle cases where multiple input CHOPs' sample rates are different. When Resampling occurs, the curves are interpolated according to the Interpolation Method Option, or "Linear" if the Interpolate Options are not available.

  • Resample At First Input's Rate first - Use rate of first input to resample others.
  • Resample At Maximum Rate max - Resample to the highest sample rate.
  • Resample At Minimum Rate min - Resample to the lowest sample rate.
  • Error If Rates Differ err - Doesn't accept conflicting sample rates.

Export Method exportmethod - - This will determine how to connect the CHOP channel to the parameter. Refer to the Export article for more information.

  • DAT Table by Index datindex - Uses the docked DAT table and references the channel via the index of the channel in the CHOP.
  • DAT Table by Name datname - Uses the docked DAT table and references the channel via the name of the channel in the CHOP.
  • Channel Name is Path:Parameter autoname - The channel is the full destination of where to export to, such has geo1/transform1:tx.

Export Root autoexportroot - This path points to the root node where all of the paths that exporting by Channel Name is Path:Parameter are relative to.

Export Table exporttable - The DAT used to hold the export information when using the DAT Table Export Methods (See above).


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