Sometimes after deserializing a J3O, animations are broken

[pateman]

Related to this topic: http://hub.jmonkeyengine.org/t/solved-ogrexml-model-animation-broken-after-exporting-to-j3o/34200

A solution is also present there.

[marshhxx]

Hi @pateman
I'm experiencing a similar issue on Android.
I exported a 3ds Max model to OgreXml. The animated model works perfectly but the first time takes about 20s to render.
I then imported my OgreXml model to jMonkeyPlatform and convert it to j3o binary. The model takes 1s to render but animations are broken.
Did you solve it adding rootBone.reset(); in the Skeleton.read() method?
Did you then import the new jars to your project?

Thanks for the help!

[pateman]

@marshhxx, yes, that's basically what solved the problem for me. I didn't really import a modified JAR. I just downloaded the source file from the repo, put it under the same package in my project's source, modified it, and rebuilt the project.

[marshhxx]

@pateman Thanks for the help! I try it and worked 👍
I found a simpler solution that worked where you don't need to change the library. Have a look at this link http://hub.jmonkeyengine.org/t/android-graphic-glitches/33403/25

Basically what you need to do is apply "setHardwareSkinningPreferred" to your Spatial.
SkeletonControl skeletonControl = player.getControl(SkeletonControl.class);
skeletonControl.setHardwareSkinningPreferred(true);

Hope it helps!

[Nehon]

To anyone willing to take this one
Solution is to add rootBone.reset() be fore this line -> https://github.com/jMonkeyEngine/jmonkeyengine/blob/master/jme3-core/src/main/java/com/jme3/animation/Skeleton.java#L307

[Ali-RS]

Will take this.

[ianmcclean]

This issue should be closed with the merging of the PR.

[stephengold]

The PR has been merged.