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    Thanks, Robert and Chris! I built the quadtree myself and I had
    indeed messed up the scene graph. Doing everything by the book works
    much better, it runs smoothly now.<br>
    <br>
    Regards,<br>
    Andreas<br>
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    <div class="moz-cite-prefix">On 2016-08-26 17:35, Chris Hanson
      wrote:<br>
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    <blockquote
cite="mid:CAGoufmZLJXPgoB+R42EAnUcy2pMFox+DrMFZmbNjG9Gf5D8mGQ@mail.gmail.com"
      type="cite">
      <div dir="ltr">Yeah, something's not right with your scene graph.
        You shouldn't see that behavior if your PagedLODs are structured
        correctly.
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        <div>You might add some debugging messages to determine what is
          happening in the PagedLOD node that contains the geometry that
          disappears in #2, as it must be switching to SOME other child
          during the #2 time period.</div>
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        <div>You're not using an extra level of indirection like a
          second PagedLOD under the main PagedLOD, are you? Or a Switch
          or a ProxyNode or something else?</div>
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        <div>What built the quadtree database?</div>
        ​</div>
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      <pre wrap="">_______________________________________________
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