CODEWITHSUNDEEP
iosswiftruntime-errorscenekit
Dhara
Dhara

Reputation: 4089

Error: removing the root node of a scene from its scene is not allowed

I am getting an error at the last line of the code.

- (SCNScene *)getWorkingScene {
    SCNScene *workingSceneView  = self.scene;

    if (workingSceneView == nil){
        workingSceneView = [[SCNScene alloc] init];
        workingSceneView.background.contents = self.skyColor;
        self.scene = workingSceneView;
        self.allowsCameraControl = TRUE;
        self.autoenablesDefaultLighting = TRUE;
        self.showsStatistics = TRUE;
        self.backgroundColor = self.skyColor;
        self.delegate = self;
    }

    return workingSceneView;
}

DPoint *point = [coodinate convertCooridnateTo3DPoint];
NSURL *pathToResource = [NSURL urlWithObjectName:objectName ofType:@"dae"];
NSError *error;
SCNScene *scene = [SCNScene sceneWithURL:pathToResource options:nil error:&error];
SCNNode *node = scene.rootNode;
node.position = SCNVector3Make(point.x, point.y, point.z);
node.rotation = SCNVector4Make(0, 1, 0, ((M_PI*point.y)/180.0));
SCNScene *workingScene = self.getWorkingScene;
[workingScene.rootNode addChildNode:node];

Upvotes: 0

Views: 856

Answers (1)

rmaddy
rmaddy

Reputation: 318774

A node can only belong to one scene, much like a view can only have one parent view.

When you call [workingScene.rootNode addChildNode:node]; you are moving node from its current scene (scene) to a different scene (workingScene). But node is the root node of scene. You are not allowed to remove the root node of a scene, hence the error.

One solution is to move all of the child nodes of node to workingScene.rootNode.

Upvotes: 2

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