{"id":26483953,"url":"https://github.com/vrlabs/rigidbody-launcher","last_synced_at":"2025-09-07T06:35:10.974Z","repository":{"id":41266504,"uuid":"445871926","full_name":"VRLabs/Rigidbody-Launcher","owner":"VRLabs","description":"Launch an object with collision against the 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align=\"center\"\u003e\n\n# Rigidbody Launcher\n\n[![Generic badge](https://img.shields.io/github/downloads/VRLabs/Rigidbody-Launcher/total?label=Downloads)](https://github.com/VRLabs/Rigidbody-Launcher/releases/latest)\n[![Generic badge](https://img.shields.io/badge/License-MIT-informational.svg)](https://github.com/VRLabs/Rigidbody-Launcher/blob/main/LICENSE)\n[![Generic badge](https://img.shields.io/badge/Quest-Incompatible-red?logo=Meta)](https://img.shields.io/badge/Quest-Incompatible-red?logo=Meta)\n[![Generic badge](https://img.shields.io/badge/Unity-2022.3.22f1-lightblue?logo=Unity)](https://unity.com/releases/editor/whats-new/2022.3.22)\n[![Generic badge](https://img.shields.io/badge/SDK-AvatarSDK3-lightblue.svg)](https://vrchat.com/home/download)\n\n[![Generic badge](https://img.shields.io/discord/706913824607043605?color=%237289da\u0026label=DISCORD\u0026logo=Discord\u0026style=for-the-badge)](https://discord.vrlabs.dev/)\n[![Generic badge](https://img.shields.io/endpoint.svg?url=https%3A%2F%2Fshieldsio-patreon.vercel.app%2Fapi%3Fusername%3Dvrlabs%26type%3Dpatrons\u0026style=for-the-badge)](https://patreon.vrlabs.dev/)\n\nLaunch an object with collision against the world\n\n![RigidbodyLauncher](https://github.com/VRLabs/Rigidbody-Launcher/assets/76777936/16961609-f0d0-48cc-821a-6a08d9642e58)\n\n### ⬇️ [Download Latest Version](https://github.com/VRLabs/Rigidbody-Launcher/releases/latest)\n\n### 📦 [Add to VRChat Creator Companion](https://vrlabs.dev/packages?package=dev.vrlabs.rigidbody-launcher)\n\n\u003c/div\u003e\n\n---\n\n## How it works\n\n* A configurable joint is connected to a [world-constrained](https://github.com/VRLabs/World-Constraint) kinematic rigidbody and given velocity on the Z-axis.\n* The joint has collision and stops against the world.\n* A particle system under the joint dies with collision, causing a [particle stop action disable](https://docs.unity3d.com/ScriptReference/ParticleSystemStopAction.html), triggering a contact-driven parameter change.\n\n## Install guide\n\nhttps://github.com/VRLabs/Rigidbody-Launcher/assets/76777936/9f288264-7a4b-4790-b6c3-38a1180a3ea5\n\n* Merge the Animator Controller ``Rigidbody Launcher FX`` to your own FX Controller, using the [Avatars 3.0 Manager](https://github.com/VRLabs/Avatars-3.0-Manager) tool.\n* Drag \u0026 drop the ``Rigidbody Launcher`` prefab into the base of your Hierarchy.\n* Right click and unpack the prefab, then drag \u0026 drop it onto your avatar.\n* Move ``Rigidbody Launcher Target`` outside of ``Rigidbody Launcher`` and place it anywhere in your avatar's hierarchy. Adjust the transforms as needed.\n\n## How to use\n\n* Place the objects you want to to use inside ``Rigidbody Launcher`` -\u003e ``Container``.\n  * Alternatively you can constrain the objects to ``Container``.\n* ``RigidbodyLauncher/Control`` parameter must be true for the system to fire, and false to reset.\n* To change speed, you can edit the ``Launcher Fire.anim`` animation clip and change the ``Target Velocity``. You need to use a negative value.\n  * You can also change the ``Maximum Force`` property under the ``X/Y/Z Drive`` sections of the ``Rigidbody Launcher/Kinematic Rigidbody/Collision`` configurable joint.\n  * Other properties of the joint on ``Collision`` are editable depending on the rigidbody motion you want to achieve.\n* To launch the rigidbody perfectly straight, freeze rotation for XYZ on the ``Collision`` rigidbody (not the configurable joint), and set the X and Y motion on the ``Collision`` configurable joint as locked.\n  * This will make it so only Z-axis motion is possible.\n\n## Performance stats\n\n```c++\nAudio Sources:      2\nColliders:          1\nConstraints:        4\nConstraint Depth:   4\nContact Receivers:  1\nContact Senders:    1\nFX Animator Layers: 2\nLights:             1\nParticle Systems:   1\nRigidbodies:        3\n```\n\n## Hierarchy layout\n\n```html\nRigidbody Launcher\n|-Container\n|  |-Cube\n|  |  |-Point Light\n|  |-Collision Audio\n|  |-Fire Audio\n|-Kinematic Rigidbody\n|  |-Collision\n|  |  |-Box Collider\n|  |  |-Contact\n|-Rigidbody Launcher Target\n```\n\n## Contributors\n\n* [lin](https://github.com/oofdesu)\n\n## License\n\nRigidbody Launcher is available as-is under MIT. For more information see [LICENSE](https://github.com/VRLabs/Rigidbody-Launcher/blob/main/LICENSE).\n\n​\n\n\u003cdiv align=\"center\"\u003e\n\n[\u003cimg src=\"https://github.com/VRLabs/Resources/raw/main/Icons/VRLabs.png\" width=\"50\" height=\"50\"\u003e](https://vrlabs.dev \"VRLabs\")\n\u003cimg src=\"https://github.com/VRLabs/Resources/raw/main/Icons/Empty.png\" width=\"10\"\u003e\n[\u003cimg src=\"https://github.com/VRLabs/Resources/raw/main/Icons/Discord.png\" width=\"50\" height=\"50\"\u003e](https://discord.vrlabs.dev/ \"VRLabs\")\n\u003cimg src=\"https://github.com/VRLabs/Resources/raw/main/Icons/Empty.png\" width=\"10\"\u003e\n[\u003cimg src=\"https://github.com/VRLabs/Resources/raw/main/Icons/Patreon.png\" width=\"50\" height=\"50\"\u003e](https://patreon.vrlabs.dev/ \"VRLabs\")\n\u003cimg src=\"https://github.com/VRLabs/Resources/raw/main/Icons/Empty.png\" width=\"10\"\u003e\n[\u003cimg src=\"https://github.com/VRLabs/Resources/raw/main/Icons/Twitter.png\" width=\"50\" height=\"50\"\u003e](https://twitter.com/vrlabsdev \"VRLabs\")\n\n\u003c/div\u003e\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fvrlabs%2Frigidbody-launcher","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fvrlabs%2Frigidbody-launcher","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fvrlabs%2Frigidbody-launcher/lists"}