The Mixed Reality Forums here are no longer being used or maintained.
There are a few other places we would like to direct you to for support, both from Microsoft and from the community.
The first way we want to connect with you is our mixed reality developer program, which you can sign up for at https://aka.ms/IWantMR.
For technical questions, please use Stack Overflow, and tag your questions using either hololens or windows-mixed-reality.
If you want to join in discussions, please do so in the HoloDevelopers Slack, which you can join by going to https://aka.ms/holodevelopers, or in our Microsoft Tech Communities forums at https://techcommunity.microsoft.com/t5/mixed-reality/ct-p/MicrosoftMixedReality.
And always feel free to hit us up on Twitter @MxdRealityDev.
Spatial Understanding Queries Return Empty Array
Does anyone have the issue of spatial understanding queries returning a null array. This happens with the topology query and the shape query. I want to place objects randomly on the floor, and I know it identifies the floor correctly (I print the values of the scan during gameplay). I also know it stores the values correctly because I've had it read numFloors from UnderstandingDLL.GetStaticPlayspaceStats() to me immediately before the query, and it's a nonzero value. However, it never places my objects because the return value of the query (which is supposed to return the number of matches found) is always zero. At this point, my code is copied from SpatialVisualizer.cs.
Is this a common problem? Any known fixes?
I can provide my code, if needed. In case it matters, I'm on Unity 5.5 and I'm working with a HoloToolkit from February.
Thank you so much!