Contact Tracker

System for attaching objects to contacts on other players

How it works

Six overlapping Proximity Contacts feed their outputs into a parent constraint to center a GameObject on the target.
- The GameObject contains the Proximity Contacts, making them center themselves on the target constantly.
The Allow Others setting on the Contacts is turned off after the Contact Tracker has attached.
- This prevents the Contact Tracker from tracking multiple Contacts.

Merge the Animator Controller Contact Tracker FX to your own FX Controller, using the Avatars 3.0 Manager tool.
Drag & drop the Contact Tracker prefab into the base of your Hierarchy.
Right click and unpack the prefab, then drag & drop it onto your avatar.
Expand the prefab hierarchy and find Tracker Target.
Move Tracker Target outside of Contact Tracker and place it anywhere in your avatar’s hierarchy as needed.

[!NOTE]
When building for Quest, you will have to remove unsupported components and shaders

Place the objects you want to attach to other players inside Contact Tracker -> Container.
- Alternatively you can constrain the objects to Contact Tracker -> Tracking Points.
Enable the ContactTracker/Control parameter to activate the system.
You can edit the Collision Tags of the six Proximity Contacts to change which Contact Senders the Contact Tracker should track.
The ContactTracker/Size parameter in the FX Controller can be changed to set the size of the Contact Tracker when it is not tracking.

The Blend Tree used in the Contact Tracker Blend Tree FX Layer MUST use Write Defaults ON!
This is the only case in which mixing Write Defaults is okay, you do not need to switch your workflow.

Constraints:        6
Constraint Depth:   5
Contact Receivers:  6
FX Animator Layers: 2
Mesh Renderers:     1

Contact Tracker
|-Container
|  |-Cube
|-Tracking Points
|  |-Culling
|  |-X+
|  |-X-
|  |-Y+
|  |-Y-
|  |-Z+
|  |-Z-
|-Tracker Target

Contact Tracker is available as-is under MIT. For more information see LICENSE.