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                                            Stephen Gold

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physics joints don't work unless both bodies are dynamic

I'm investigating this one, but don't have much of a handle on it yet.

physics joints don't work unless both bodies are dynamic

Well, I've made some progress. 1. So far, the issue only shows up with ≥2 hinged balls and ≥1 free-falling balls: + Multiple hinged balls by themselves are fine. +...

physics joints don't work unless both bodies are dynamic

The Bullet version was changed via pull request #698.

physics joints don't work unless both bodies are dynamic

Also changed by pull request #528.

physics joints don't work unless both bodies are dynamic

According to the Bullet Manual: "Constraint act between two rigidbodies, where at least one of them needs to be dynamic." However, the kernel of this issue seems to be that...

physics joints don't work unless both bodies are dynamic

I'm seeing evidence that simply upgrading to Bullet v2.87 will resolve the issue. I'll generate a pull request.

physics joints don't work unless both bodies are dynamic

The upgrade resolved the issue. The hard part was getting Travis and AppVeyor to build new native libraries. Fixed in `master` branch.

physics joints don't work unless both bodies are dynamic

The issue is now resolved for native Bullet (`jme3-bullet`) in both the `master` and `v3.2` branches. I just noticed, however, that the `TestIssue877` app fails for JBullet (`jme3-jbullet`) in both...

physics joints don't work unless both bodies are dynamic

Lacking source code, I have no clue how to fix JBullet.

We need documentation for the new animation system.

Agreed. Thanks for opening the issue here.