Crash (assertion failure) in v2.0 when deleting Nodes

[rogual]

Hi,

It seems that Ogre will always crash with an assertion failure if you delete Nodes which have parents. Looking at the code, it looks like it's supposed to remove the node from its parent, but this can't happen.

I've made a JIRA ticket with details: https://ogre3d.atlassian.net/browse/OGRE-479

Happens for me on latest v2-0 branch; hope I tagged it properly.

[dark_sylinc]

I can see the bug, but you could you please provide a snippet repro code to understand what is triggering this behavior?

[rogual]

Hmm, it was always intermittent, and now that I write a test case for it, I can't get it to happen. I'm ready to accept I was probably doing something wrong in my app.

[N0vember]

Maybe when deleting manually a node instead of calling the destroySceneNode function ?

[rogual]

Ah, nope, got it. This'll do it:

Code: Select all

#include <Ogre/Ogre.h>

int main()
{
    Ogre::Root *ogre = new Ogre::Root("plugins.cfg", "render.cfg");
    ogre->restoreConfig();

    Ogre::RenderWindow *win = ogre->initialise(true);
    Ogre::SceneManager *scene = ogre->createSceneManager(Ogre::ST_GENERIC, 1, Ogre::INSTANCING_CULLING_SINGLETHREAD);

    Ogre::SceneNode *one = scene->createSceneNode();
    Ogre::SceneNode *two = scene->createSceneNode();

    two->addChild(one);

    scene->clearScene();
}

It only happens when the child is created before the parent.

[dark_sylinc]

I'll take a look at this when I get some time.

btw you should create your scenenodes via createChildSceneNode (and grabbing the root scene node to create the first one)