Crash when activating collisions after cell change

[jhooks1]

I think the problem is with Player, and it's scenenode/handle being erased.

[Zini]

Why would a change to scene nodes result in a crash deep in the physics system?

[jhooks1]

I think it is the physics handle that is being removed along with the npc/creature physics handles?

[Zini]

There is no physics handle, but the OGRE handle is also used by the physics system to identify objects. Still doesn't explain what I see in the debugger.

[jhooks1]

I think the problem may lie in the implementation of unloadCell()

[gus]

Could anyone try with the latest SVN version of bullet? That bug seems familiar to me, and it's seems that bullet is not doing some cleaning up well, leading to a crash.

Edit: never mind. werdanith tried it, it doesn't work.

[gus]

I somehow fixed the crash... I removed for testing purpose a line that should be necessary, and the crash simply vanished, without breaking (or so it seems) the physic :p


Edit: changes are pushed in my master branch of openengine.

[Zini]

This is somewhat unnerving. I guess if everything else is ready, we will have to release 0.12.0 with this fix, but removing a crash without fully understanding what went wrong is an invitation for further trouble.

[jhooks1]

Good Job

[Greendogo]

How exactly can removing a necessary line and having it not crash be a solution? Doesn't it break something else? (I ask while not looking at the code for myself)