2021.1.1560.3 Double Gyroscopic Joint

1 Overview
2 Where to find
3 Feature layout
4 How to use

Overview

This kinematic constraint keeps an objects up direction constant.

The Kinematic Gyroscopic Joint works without using any Kinematic Relations.

Where to find

The Kinematic Gyroscopic Joint can be found under Mechanics > Kinematics > Kinematic joints > Kinematic Gyroscopic Joint.

This will add the Kinematic Gyroscopic Joint component to the currently selected object or create a new empty GameObject with the component attached if no objects are selected.

Joints must be placed as children of a DKinematics Controller in the hierarchy.

The following inspector component will be shown:

Feature layout

The image below shows the complete feature layout of the Kinematic Gyroscopic Joint component.

Generic Joint Settings
Pass Priority	Priority of the kinematic chain calculations. Higher numbers are calculated earlier.
Enforce Outside Playmode	Enforces the joint to work in edit mode.
Prevent Kinematic Update	Removes the joint from the kinematic chain calculations.
Min Translation Delta	The minimum value the joint detects as a change in position.
Min Rotation Delta	The minimum value the joint detects as a change in rotation.
Kinematic Chaining
Show in Scene View	Shows chained connections of this object through arrows.
Show When Not Selected	Shows chained connections of this object through arrows even when the object is not selected.
Add Kinematic Transfer Relation	Select a Kinematic Body to set a transfer relation. Alternatively, drag a Kinematic Body into the field.
Opposing Kinematic Relation	The Kinematic Body to which this relation is connected.
Relation Direction	Describes the direction of the manipulation of the Transforms. The following options are available: BIDIRECTIONAL: Allows for both kinematic transforms, when they are being manipulated, to manipulate each other equally. RECIEVE_ONLY: Allows for the joint, when it is being manipulated, to manipulate the opposing kinematic transform, but not the other way around. SEND_ONLY: Allows for the opposing kinematic transform, when it is being manipulated, to manipulate the joint, but not the other way around.
Ratio	The ratio in which the relation is applied (1 means all the applied rotation translation is equally transferred).
Invert Relation	Check to invert the direction of the relation.
Gyroscopic Joint Settings
Global Up Direction	Describing the up direction of the Kinematic Gyroscopic Joint in global space.
Local Up Direction	Describing the up direction of the Kinematic Gyroscopic Joint in local space.
Scene View Settings
Always Enabled	When checked the indicated up direction arrow is always visible.
Enabled in Scene View	When checked the indicated up direction arrow is visible when this object is selected.
Color Settings
Global Up Color	Color of the global up direction in scene view.
Local Up Color	Color of the local up direction in scene view.

How to use

Add a Kinematic Gyroscopic Joint to an object.
Set the Global Up Direction to your desired value and enable Enforce Outside Playmode.

Test if the joint is working.