Camera attached to something else?

[capture]

I am trying to attach my camera to a follownode for my camera system.

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mFollowNode->attachObject(mCamera);

The problem is when I run the program, it crashes and the Ogre log states some error about camera already being attached to an object.

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OGRE EXCEPTION(2:InvalidParametersException): Object already attached to a SceneNode

I've ran a search in my code for "attachObject", and the only time i attached anything was the camera and the follow node once.

Any one have any ideas what the problem might be, or how i should go about debugging it?

[Kaelic]

Can we see all of the code relating to the camera?

[nullsquared]

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OGRE EXCEPTION(2:InvalidParametersException): Object already attached to a SceneNode

I'm pretty sure Ogre gives you the name of the attached object with that exception, did it?

[capture]

Nope, it doesn't.
Here is the full line.

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08:07:22: OGRE EXCEPTION(2:InvalidParametersException): Object already attached to a SceneNode or a Bone in SceneNode::attachObject at e:\ogre3d\ogrenew\ogremain\src\ogrescenenode.cpp (line 127)

[holymoly]

if such things happens, try the following approch,

first : get parent node of the camera
second : detach the camera you want to make another attach
third : attach the camera to the new node.

this will work in most acations

[jacobb]

Would seem that your camera is already attached to a scene node. It can't be attached to two different nodes at the same time, which is what ogre is trying to tell you.

Either detach camera from the node its already attached to before attaching it to the new node OR add the node the camera is already attached to as a child of the new node, which will have the same effect.

See api docs for SceneNode::attachObject, SceneNode::detachObject, and SceneNode::addChild

[capture]

Sorry every one, I found the problem. I was trying to attach the object inside of a loop, and this created an error.