Lag channel node

Adds lag and overshoot to channels.

This chop adds lag and overshoot to channels. It can also limit the velocity and acceleration of channels. Lag is an effect that 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.

The Spring CHOP provides some similar effects.

Parameters

Method

The method by which lag is applied to the channels.

Lag 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	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	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.

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.

Overshoot

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

Clamp Slope

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

Max Slope

The first value limits the slope when it is rising, and the second value limits the slope when it is decreasing.

Clamp Acceleration

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

Max Acceleration

The first value limits the acceleration when it is rising, and the second value limits the acceleration when it is decreasing.

Locals

I	The current index.
C	The current channel (0 to NC-1).
NC	The total number of channels.

Examples

The following examples are specifically designed to demonstrate this node:

LagBasic

$HFS/mozilla/documents/examples/nodes/chop/lag/LagBasic.cmd

The following examples use this node:

BlobbySphere

$HFS/mozilla/documents/examples/nodes/sop/channel/BlobbySphere.cmd