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Microsoft HoloLens By Example by Joshua Newnham

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Assisted discovery with spatial sound 

So far, we have allowed two or more users to share a space by sharing a single WorldAnchor; this allows everyone to see the hologram in the same place, but there is a slight issue we need to address. The placement of a hologram may not be obvious to the user who hasn't placed it. Currently, we just tell that user the hologram has been placed; of course, given this is a collaborative tool, we can assume the user who placed the hologram will explicitly or implicitly indicate where the hologram is placed, but assumptions are a sure path to a poor user experience. What are our options? We can do either of the following:

  • Show a visual element to indicate the direction of the hologram if the hologram is out ...

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