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Physics Attachment Engine

Plugins + Scripts Physics Attachment Engine

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Kimowal

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Joined
Dec 27, 2022
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Kimowal submitted a new resource:

Physics Attachment Engine - Attach any controller to any other controller with smooth physics.

Attach any controller to any other controller using smooth, physics-based joints.(Not tested in VR)
Perfect for natural interactions like hand-to-object, body-to-body, or person-to-prop.


Physics Attachment Engine lets you connect two controllers with configurable joints that fade in smoothly, remain stable, and detach gracefully. Clean UI, full scene save/load, and safe error handling included.


Features


  • Attach any controller → any...

Read more about this resource...
 
Thank you for checking out Physics Attachment Engine!
This is just the beginning — upcoming updates will add Limited Motion Mode, Timeline actions, and more tools for natural interactions.


Let me know what attachments or behaviors you want to see next! ❤️
 
It's a nice plugin


I hope option to tracking position only

The rotation seems to be applied even if the rotation of the joint is turned off


And when I added a few target controllers and ran Detach All as a trigger, all the target controllers I added were deleted, so I had to add the few target controller all over again to try to attach again.

So I ran plugins in duplicate and set up one target controller for each plugin to solve it.


If the All Attach/All Detach toggle trigger is added while maintaining the list of target controllers,

It is Attach/Detach is possible while maintaining the target controller list, so it will be convenient to manage multiple target controllers with one plugin.
 
Hey genesis 2 and thank you for the feedback il deffently have a look, as for multiple controllers with one plugin, i agree and i do have this on my list for improvements.🙂👍 Il try to have an update later tonight(8:11pm here now) if im able.
 
Kimowal updated Physics Attachment Engine with a new update entry:

1.0.2

Physics Attachment Engine – Update


This update brings major workflow improvements, more control over attachment behavior, and full trigger-friendly management of multiple attachments.




✔ New Features & Fixes


1. Position-Only Tracking


You can now choose to follow position only while keeping the rotation completely free.


  • Added toggle: “Position Only (No Rotation)”...

Read the rest of this update entry...
 
Kimowal updated Physics Attachment Engine with a new update entry:

Physics Attachment Engine v2.0

Physics Attachment Engine 2.0 Update (experimental)


This update builds on the previous improvements (Position-Only tracking, rotation fixes, and the new “Enable All Attachments” system) and brings the plugin to a full behavior-driven attachment system.
Physics Attachment Engine is no longer just an attach/detach tool — it now provides realistic grab, hold, hug, sit, and soft-follow behaviors with offset capture and scene presets.



...

Read the rest of this update entry...
 
Hi. Loving where this plugin is going. I was starting to make something similar but didn't get super far yet and this is better. The one use that I'm trying to have is where a have a dildo that has a (not yet released) plugin on it that does the thrusting. I'm trying to attach the hand to it so that it follows it exactly (without the physics delay). Even with the Hold settings, there's that physics delay. It's not horrible and there very likely may not be a way to make it completely stick (this is the issue I was running into on my own version of the plugin). But curious if you might know how to implement something like that into the plugin. Also, you may want to add a searchable field to the selectors as there's so many options that it's really hard to find the one you're looking for by scrolling. Especially in VR. Looking forward to seeing where this plugin goes. :)
 


Hello, I tried the updated plugin


It seems that the position of the 2 controller is newly recorded when the attach is released and re-applied

The distance between of the ball and hand be different from the beginning when reattach it in video 0:07


I thought wearing it again like the Rubber Leash plugin would restore the same distance between the hand and the ball as when I first attached it

But Rubber Leash plugins only support hand 'Control' and no hand 'Object', so it is difficult to reattach accurately


Is it possible to move towards the ball at the interval the hand first attached when executing the reattachment trigger?


If it is determined that this is not a necessary feature in the plugin, You don't have to add
 
Last edited:
Hi. Loving where this plugin is going. I was starting to make something similar but didn't get super far yet and this is better. The one use that I'm trying to have is where a have a dildo that has a (not yet released) plugin on it that does the thrusting. I'm trying to attach the hand to it so that it follows it exactly (without the physics delay). Even with the Hold settings, there's that physics delay. It's not horrible and there very likely may not be a way to make it completely stick (this is the issue I was running into on my own version of the plugin). But curious if you might know how to implement something like that into the plugin. Also, you may want to add a searchable field to the selectors as there's so many options that it's really hard to find the one you're looking for by scrolling. Especially in VR. Looking forward to seeing where this plugin goes. :)
Hi! Thank you so much for the awesome feedback and suggestions! I've just implemented both features you requested 😁👌:

1. Perfect Follow Mode (Zero-Lag Attachment)
I've added a new "Perfect Follow" mode specifically for your use case! This uses kinematic following instead of
physics springs, giving you ZERO lag between the dildo and the hand.(your the testing doll so tell me how it works 😂)

How to use:
- Set "Attachment Mode" to "Perfect Follow"
- The target will follow the source with no physics delay
- Still respects position-only and offset settings

How it works:
- Makes the target rigidbody kinematic
- Uses `MovePosition()` and `MoveRotation()` for physics-aware movement
- No spring calculations = no delay
- Perfect for scripted thrusting dildos with hand attachment

2. Searchable Selector Fields

Added search/filter text fields for ALL selectors:
- Source Atom Filter
- Source Controller Filter
- Target Atom Filter
- Target Controller Filter

How to use:
- Just type in the filter field (appears right below each selector)
- Instantly filters the dropdown to show only matching items
- Case-insensitive search
- Super helpful in VR with hundreds of rigidbodies!

Both features are live in next update(coming soon). Try "Perfect Follow" mode for your dildo + hand setup - it should give you the
instant, lag-free tracking you're looking for!
 
Hi! Thank you so much for the awesome feedback and suggestions! I've just implemented both features you requested 😁👌:

1. Perfect Follow Mode (Zero-Lag Attachment)
I've added a new "Perfect Follow" mode specifically for your use case! This uses kinematic following instead of
physics springs, giving you ZERO lag between the dildo and the hand.(your the testing doll so tell me how it works 😂)

How to use:
- Set "Attachment Mode" to "Perfect Follow"
- The target will follow the source with no physics delay
- Still respects position-only and offset settings

How it works:
- Makes the target rigidbody kinematic
- Uses `MovePosition()` and `MoveRotation()` for physics-aware movement
- No spring calculations = no delay
- Perfect for scripted thrusting dildos with hand attachment

2. Searchable Selector Fields

Added search/filter text fields for ALL selectors:
- Source Atom Filter
- Source Controller Filter
- Target Atom Filter
- Target Controller Filter

How to use:
- Just type in the filter field (appears right below each selector)
- Instantly filters the dropdown to show only matching items
- Case-insensitive search
- Super helpful in VR with hundreds of rigidbodies!

Both features are live in next update(coming soon). Try "Perfect Follow" mode for your dildo + hand setup - it should give you the
instant, lag-free tracking you're looking for!
Awesome, I look forward to testing the new version once you put it on the hub. Thank you!
 
Awesome, I look forward to testing the new version once you put it on the hub. Thank you!
Man is my pleasure! really❤️‍🔥🍺 your plugins and looks are out of this world! uve been one of my inspirations to start creating so im emencly(did i writh it correctly??) honored that you find interest for my plugin🥲🫡
 
View attachment 547486

Hello, I tried the updated plugin


It seems that the position of the 2 controller is newly recorded when the attach is released and re-applied

The distance between of the ball and hand be different from the beginning when reattach it in video 0:07


I thought wearing it again like the Rubber Leash plugin would restore the same distance between the hand and the ball as when I first attached it

But Rubber Leash plugins only support hand 'Control' and no hand 'Object', so it is difficult to reattach accurately


Is it possible to move towards the ball at the interval the hand first attached when executing the reattachment trigger?


If it is determined that this is not a necessary feature in the plugin, You don't have to add
Hey Genesis2 :) im working on it so there will be an update either later today or tomorrow :) (The 2,1 update is not it sorry, but im pushing for the next one :) )
 
Last edited:
Kimowal updated Physics Attachment Engine with a new update entry:

Physics Attachment Engine v2.1

Physics Attachment Engine – Update 2.1


This update introduces two major improvements: a zero-lag attachment mode and searchable selector fields for faster workflow.




✅ 1. Perfect Follow Mode (Zero-Lag Attachment)


A brand-new attachment mode designed for situations where absolute, instant following is required.


What it does:


  • Zero delay between source and target
  • Uses kinematic...

Read the rest of this update entry...
 
Man is my pleasure! really❤️‍🔥🍺 your plugins and looks are out of this world! uve been one of my inspirations to start creating so im emencly(did i writh it correctly??) honored that you find interest for my plugin🥲🫡
Thank you for the kind words. and the quick turnaround on the update. :) I'll be checking it out very shortly.
 
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