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Error, SceneObject not properly removed from sceneGraph

by Steven Peterson · in Torque Game Engine · 05/21/2008 (9:49 am) · 2 replies

If you want to create a scene object in the C++ code you have to register it with a call like this.:
myFXRenderObject->registerObject()

If you register it, then you must unregister it with a similar call:
myFXRenderObject->unregisterObject()

Failure to unregister will result in the following error:
"Error, SceneObject not properly removed from sceneGraph"

And your hapless soul will be doomed to lost productivity - until you stumble on this post and heed it's worthy guidance.
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Associate James Ford
Sickhead Games
#1
05/21/2008 (10:12 am)
Usually sceneObject->deleteObject() is used rather than unregister ( if the goal is to delete it ).

Oh heres a neat trick ... you can actually pass a string name to registerObject ... which allows you to later find the object with Sim::findObject("name") and reference the object in script using the name.

Torque Owner Steven Peterson
#2
05/21/2008 (12:06 pm)
Both good points.
In my specific case, I'm not using dynamic-memory, but I believe this is the exception. For me it looks like:
myFXRenderObject.registerObject()
...
myFXRenderObject.unregisterObject()

But for those who are (like James says):
www.garagegames.com/mg/forums/result.thread.php?qt=14548
--------------
After you create it, simply call...
myFxRenderObject->registerObject();
... which will automatically call its 'onAdd' and prior to deleting it, call ...
myFxRenderObject->unregisterObject();
... which will automatically call its 'onRemove'.
A neat way of unregistering and deleting the object in one go is to call...
myFxRenderObject->deleteObject();

Have a look in SimManager.cc for these commands and others that may help you.
Hope this helps,
- Melv.
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And of course if the object is instantiated from script side (eg. listed in your *.mis mission-file) it is added, registered, unregistered, removed, deleted, and near everything else auto-magically. And then you won't have to read this thread, either.