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NullExceptions when setting DrawVisualMeshes in SpatialMappingManager

LouisLouis ✭
in Questions And Answers

Hello Holofriends,

I'm trying to trigger the spatial meshes on and off by setting the DrawVisualMeshes to true or false, but by doing so, I get NullExceptions in the UpdateRendering function it calls.

private void UpdateRendering(bool Enable)
{
      List<MeshRenderer> renderers = Source.GetMeshRenderers();
      for (int index = 0; index < renderers.Count; index++)
      {
          renderers[index].enabled = Enable;
          if (Enable)
          {
               renderers[index].sharedMaterial = SurfaceMaterial;
          }

      }
}

Most of the time, there is some of the objects in "renderers" that are null and that throws an exception. Doing that make it that all the renderers before the null have the modification and all the others don't, essentially making parts of the mapping mesh still shown when you disable it.

Any clues on what I'm missing here?

Thanks!

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    PatrickPatrick mod

    that's a legit bug in the script. renderers[index] should be checked for null before accessing.

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    MarcMarc ✭

    Why is it possible for the renderers' list to contains null references? Shouldn't the spatial mapping updates itself to clear those? Maybe this bug is somewhat related to this one? http://forums.hololens.com/discussion/1517/observer-memory-growing-indefinitely

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