Lag CHOP

Summary

The Lag CHOP adds lag and overshoot to channels. It can also limit the velocity and acceleration of channels. Lag slows down rapid changes in the input channels. Overshoot amplifies the changes in the input channels.

Two values exist for each parameter. For example, in the Lag effect, when the input channel value is rising, the first lag parameter is used, and when the channel value is decreasing, the second lag parameter is used. This can give a quick rise, and a slow fall. But lag up and down are often kept at the same value.

For a similar, less-abrupt effect, see the Filter CHOP.

lagCHOP_Class

Parameters - Lag Page

Method lagmethod - ⊞ - The method by which lag is applied to the channels.

Lag Value value - Up is defined as an increase in values of the input channels, and down is a decrease in values of the inputs.

Lag Amplitude amp - Up is defined as an increase in amplitude (moving away from zero) and down is defined as a decrease in amplitude (moving towards zero) of each input channel.

Lag Magnitude mag - All the input channels are treated as components of one vector, and each operation is applied to the vector as a whole. Only the first parameter in Lag, Overshoot, Clamp Slope and Clamp Acceleration applies in this mode.

Quaternion Rotation (Commercial) rotation - Allows the lag to work with quaternion rotations.

Lag lag - ⊞ - Applies a lag to a channel. The first value is for lagging up, and the second is for lagging down. It is approximately the time that the output follows 90% of a change to the input.

lag1 - Lagging up value.

lag2 - Lagging down value.

Lag Unit lagunit - Choose between using Samples, Frames, or Seconds as the units for this parameter.

Overshoot overshoot - ⊞ - Applies overshoot to a channel. The first value is for overshoot while moving up, and the second is for overshoot while moving down.

overshoot1 -

overshoot2 -

Overshoot Unit overshootunit - Choose between using Samples, Frames, or Seconds as the units for this parameter.

Clamp Slope clamp - Clamps the slope (or velocity) to lie between the values listed in Max Slope below. Slope is expressed as value/Units.

Max Slope slope - ⊞ - The first value limits the slope when it is rising, and the second value limits the slope when it is decreasing.

slope1 -

slope2 -

Clamp Acceleration aclamp - Clamps the acceleration to lie between the values listed in Max Acceleration below. Acceleration is expressed as value/(Units*2) .

Max Acceleration accel - ⊞ - The first value limits the acceleration when it is rising, and the second value limits the acceleration when it is decreasing.

accel1 -

accel2 -

Lag per Sample lagsamples - Applies the lag to each sample of the channel instead of across the whole channel. Useful for working with multi-sample channels.

Reset reset - When On resets (bypasses) the lag effect.

Reset Pulse resetpulse - Instantly resets the lag effect.

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. See Pattern Matching.

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).

Operator Inputs

Input 0: -

Info CHOP Channels

Extra Information for the Lag CHOP can be accessed via an Info CHOP.

Common CHOP Info Channels

start - Start of the CHOP interval in samples.

length - Number of samples in the CHOP.

sample_rate - The samplerate of the channels in frames per second.

num_channels - Number of channels in the CHOP.

time_slice - 1 if CHOP is Time Slice enabled, 0 otherwise.

export_sernum - A count of how often the export connections have been updated.

Common Operator Info Channels

total_cooks - Number of times the operator has cooked since the process started.

cook_time - Duration of the last cook in milliseconds.

cook_frame - Frame number when this operator was last cooked relative to the component timeline.

cook_abs_frame - Frame number when this operator was last cooked relative to the absolute time.

cook_start_time - Time in milliseconds at which the operator started cooking in the frame it was cooked.

cook_end_time - Time in milliseconds at which the operator finished cooking in the frame it was cooked.

cooked_this_frame - 1 if operator was cooked this frame.

warnings - Number of warnings in this operator if any.

errors - Number of errors in this operator if any.

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