Comments (6)
Un1xG0d
commented on May 24, 2024
1
I think I narrowed down where the issue may lie, but I need to do some more digging. It looks like didRenderScene is called after the nodes get added, whereas the demo code completes rendering before the loop in addPolylines gets called. I'll close this issue out since it is not a bug with ARCL. Thanks so much for your help!
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halmueller
commented on May 24, 2024
sceneNode?.addChildNode($0)will fail if sceneNode is nil. There’s no parent node to add the child to. The error is likely in your setup code before the call to addChildNode.
Useful idioms here would be something like an if-let, a guard-else, or guard let-else. By failing silently, ARCL is allowing your program to not crash, but it’s a logic error in your client code to add a child to a nil node.
… On Aug 23, 2020, at 2:19 PM, Alan ***@***.***> wrote:
sceneNode?.addChildNode($0)
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Un1xG0d
commented on May 24, 2024
Where specifically does sceneNode get initialized?
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halmueller
commented on May 24, 2024
I was going to ask YOU that. You’re the one passing the variable :)
Do a command-click on `sceneNode` and it will show you the definition that you’ve give it.
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Un1xG0d
commented on May 24, 2024
It starts on line 86 of SceneLocationView. This file was pulled from the develop branch and has been unmodified, which is why I'm getting a little confused as to how/why it is nil.
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halmueller
commented on May 24, 2024
At this point it’s looking to me like a debugging problem, not an ARCL bug. If you can post a minimal repro with code I’ll take a look, though. I need to see the code leading up to where you grab `sceneNode`.
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