Object channel node

Compares two objects and returns information on their relative positions and orientations.

The Object chop compares two objects and returns information on their relative positions and orientations. The information that can be output is:

Position of one object relative to another
Rotation of one object relative to another
Bearing of one object relative to another
Single Bearing Angle between two objects
Distance between the origin of two objects
Inverse Square of the Distance between two objects

The optional two inputs allow you to compare X,Y,Z points in world space with objects or each other. The inputs are expected to have three channels containing XYZ points. These inputs replace the target and/or reference objects. Object and points can be compared with each other, but “Rotation” mode will always return zero.

Parameters

Object

Target Object	The object that is being compared to the reference object.
Name	Specify the target using a string.
Reference Object	The object that acts as the basis for the comparison.
Name	Specify the reference using a string.
Compute	The information to output from the objects, as listed above.
Rotate Order	The rotation order to use for “Rotation” or “Bearing” computation.
Bearing Reference	Bearing requires a direction to use as a reference base.
Bearing Vector	An arbitrary base direction for /bearingx y z the bearing calculation.
Point Scope	When one of the optional point inputs is connected, this determines which channels represent X, Y and Z.

Channel

Channel Names

Sets how the output channels are named. A : is placed in the channel name where / is in the path.

Channel Name	Only use the name of the channel.
Target and Channel Names	Include the name of the target with the channel name, separated by a colon (:).
Reference and Channel Names	Include the name of the reference with the channel name, separated by a colon (:).

Sample Rate

The sampling rate of the channel in frames per second (Hz).

Channel Range

Indicates how much of the channel to fetch.

Use Full Animation Range	All of the animated range.
Use Current Frame	Only the sample at the current frame.
Use Start/End	Specify the range below.

Start

The start time of the desired interval of the object path.

End

The end time of the desired interval of the object path.

Extend Left

The left extend conditions.

Extend Right

The right extend conditions.

Default Value

The default value for extend conditions.

Examples

The following examples are specifically designed to demonstrate this node:

ObjectBasic

$HFS/mozilla/documents/examples/nodes/chop/object/ObjectBasic.cmd