Bug with collision?

[adamzeliasz1]

Maybe I'm setting this up incorrectly but I may have found a bug.

1. In my Project folder, I Create > Jiggle Breast Prefab > JiggleBreasts.

2. I dragged the JiggleBreasts prefab onto my skinned mesh character. I assigned the BreastStart_R as the Root Transform, checking Motionless Root. The next bone is Breast_R, and the following is Nipple_R. I add Nipple_R as the Excluded Transforms since I only want the Breast_R to bounce. I have Collision checked, and the Collision Radius matches the breast size. When I play a walk cycle, bouncing happens. Great.

3. I create a sphere and added the component, Jiggle Collider Example, setting the radius to match the size of the sphere.

4. When I Play the scene and move the sphere to interact with the breast collider, nothing happens. However, while the scene is still playing I select the JiggleBreast prefab that's attached to the skinned mesh renderer, and change the Collision Radius from 0.045 to something larger then back to 0.045 and move the sphere, the collision works.

5. Also if I play the scene, do not change the Collision Radius and move the sphere to interact, it doesn't work like my initial problem. But if I uncheck Motionless Root, then check it again while the scene is playing, it works. When I uncheck it I do get a Collision Radius on the BreastStart_R, and if I check it again when playing it doesn't get removed.

I'm running Unity 6000.2.10f1.

[adamzeliasz1]

I'm not a programmer, but I tried to use Gemini, Grok, and ChatGPT to fix this issue based on your original JiggleRig.cs script along with my bug report from above, but all three failed after spending 30 minutes in total with them. Looks like we'll need a good-ol-human to fix this!

[adamzeliasz1]

On a side note it also might be helpful to include samples on how to set everything up. I was a bit lost, and some time trying to understand the steps with the help of Gemini.

One thing that still is a mystery is the Jiggle Colliders on the JiggleBreasts prefab. When would I use that?

[naelstrof]

Unfortunately we have yet to write good documentation for JigglePhysics, but instead we do have a set of demo scenes that you can open and play to determine how its intended to be used.

Here's a list of our included demo scenes in this project

Assets/JigglePhysicsExample/Scenes
    AnemoneDemo.unity
    BreastDemo.unity
    CollisionStressTest.unity
    DragonTailScene.unity
    ElevatorDemo.unity
    LifetimeStressTest.unity
    PerlinTest.unity
    PlayerMovementDemo.unity
    RelativisticCarDemo.unity
    SpawnDeleteStressTest.unity
    SpeedyKoboldTest.unity

In general the rough for adding jiggle physics to a project would be to do the following:

1. Install JigglePhysics using the installation instructions in the Readme
2. Add JiggleUpdateExample as a behavior to a gameobject in your scene.
3. Add and configure JiggleRig behaviors on things you want to jiggle.
4. Add and configure JiggleColliderExample behaviors that you want rigs to collide with.

Monobehaviors that contain the name "Example" can be replaced with your own code, say if you wanted to carefully control the lifetime of colliders or when jiggle physics updates. Though the examples should work fine in the vast majority of situations.

I hope that helps! I'll leave this issue open until we write some wiki material for people to dig into as the system gets more stable.