search

jMonkeyEngine / jmonkeyengine

A complete 3-D game development suite written in Java.
http://jmonkeyengine.org
BSD 3-Clause "New" or "Revised" License
3.8k stars 1.12k forks source link

vertical vibration in TestQ3 #1563

Open stephengold opened 3 years ago

stephengold commented 3 years ago

Running the TestQ3 application with jme3-jbullet, I've noticed a slight vertical vibration of the camera, apparently caused by unexpected motion of the PhysicsCharacter. The amplitude appears to be position-dependent and is often large enough to disable jumping.

I've seen this in "master" and "v3.4" branches and also in "v3.3" with jme3-jbullet. It doesn't occur with Minie, nor does it occur in the "v3.2" branch with jme3-jbullet.

Could this be related to https://hub.jmonkeyengine.org/t/bettercharactercontrol-jumping-on-plain-surface ?

stephengold commented 3 years ago

Now I'm seeing it in the "v3.2" branch with jme3-jbullet. And since it doesn't occur with jme3-bullet-3.3.2 or Minie, I suspect this is indicative of a bug in JBullet.

stephengold commented 2 years ago

Still an issue in "master" branch as of January 2022.