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Mixed Reality 250 spatial mapping errors?
I downloaded the files from git hub.
I'm working with the SharedMixedRealityLand.scene that is completely built.
I can get it deployed to both hololens and a samsung odyssey.
Im using Unity 2017.2.0p2-MRTP5
The sharing and sessions do not show up in the list for some reason.
In the Hololens:
host id 1
isclient false
isserver true
isrunning true
anchor name is blank
anchor created false
Errors with spatial mapping:
null reference exception on spatial mapping observer.update()
Here is my Update method on SpatialMappingObserver
private void Update()
{
// Only do processing if the observer is running.
if (ObserverState == ObserverStates.Running)
{
// If we don't have mesh creation in flight, but we could schedule mesh creation, do so.
if (surfaceWorkOutstanding == false && surfaceWorkQueue.Count > 0)
{
// Pop the SurfaceData off the queue. A more sophisticated algorithm could prioritize
// the queue based on distance to the user or some other metric.
SurfaceData surfaceData = surfaceWorkQueue.Dequeue();
// If RequestMeshAsync succeeds, then we have successfully scheduled mesh creation.
surfaceWorkOutstanding = observer.RequestMeshAsync(surfaceData, SurfaceObserver_OnDataReady);
}
// If we don't have any other work to do, and enough time has passed since the previous
// update request, request updates for the spatial mapping data.
else if (surfaceWorkOutstanding == false && (Time.time - updateTime) >= TimeBetweenUpdates)
{
observer.Update(SurfaceObserver_OnSurfaceChanged);
updateTime = Time.time;
}
}
}
Also what is the trick to get code clocks to appear correctly on this forum?
Any Ideas what is wrong? I have made no code changes. Did i download a bad build?
IMPORTANT: Mixed Reality devs, change your Insider settings today (Oct 9)!!!
For those of you developing VR experiences for the new Windows Mixed Reality immersive headsets, we have an important message: if you stay in the Windows Insider Fast ring, beginning October 10, 2017 you may begin to receive RS4 builds, which will not be the most stable builds for mixed reality development. To continue mixed reality development uninterrupted, please switch your Insider settings to receive "just fixes, apps, and drivers" without getting a new Windows build from the "Windows Insider Release Preview" ring.
Instructions for switching:
1. Open Windows Settings
2. Select "Update & Security"
3. Select "Windows Insider Program"
4. In the "What kind of content would you like to receive?" drop-down menu, select "Just fixes, apps, and drivers"
5. In the "What pace do you want to get new builds?" drop-down menu, select "Windows Insider Release Preview"

Re: Change email on file for Vision Summit Acer headset
@michailnenkov - You need to send an email to [email protected] and they will take care of you
Re: Is the Microsoft Store broken at the moment?
Hey @Peter_NZ - I just sent an email to my contact at Microsoft, had someone bring this same issue up last night in another setting. I'll update when I have more info.
Re: "We couldn't download the Windows Mixed Reality software"
The recommended workaround is published at https://developer.microsoft.com/en-us/windows/mixed-reality/windows_insider_flight_notes#mixed_reality_known_issues

Presentation by Author of first HoloLens book
It is great to see the first HoloLens dev book hit the shelves: Develop for Microsoft HoloLens Now
The author spent some of his time here on the forums when he was researching for the book and on Wed, January 11, 2017 at our next WinHUGR meeting he will be sharing some of what he learned while writing the book with the rest of us.
If you are local to Seattle or Redmond, WA please come join us, and for everyone else please catch it live on our YouTube channel.
Simplygon, a simple way to get your content HoloLens-ready
Content for mobile AR/VR apps needs to be extremely well optimized, as you all probably already know.
Simplygon is a platform that lets you automatically optimize 3D content such as meshes and textures for different purposes with no or minimal manual labor. You can use Simplygon to create LOD chains, reduce draw calls, combine several high-res meshes into one cheaper mesh, optimize a scene for certain viewing angles, remove invisible geometry and so much more.
With Simplygon in your content pipeline for your AR app, you can take complex data and compress that into something that not only looks great, but also runs well on your target hardware. Here is a video that shows how a highly tesselated asset is brought into Hololens using our toolset: https://www.youtube.com/watch?v=_RGGV4KUsrM&t=3s
Simplygon was recently released with a new free offer for personal, non-commercial and educational use. You can also contact us to get a fully featured evaluation license, to see how we can help you in your projects.
Re: 3D Viewer Beta
Microsoft development team,
Thank you all very much for the new features in your recent update, the application is much more useful to us, and exciting to our clients, some of them are buying your hardware and using the content we generate for it to better understand our designs. Transparency, multiple models and the new scaling capability are great.
Keep up the good work so your viewer is the viewer of choice for all.

Re: Windows Store
The issue with the store has been identified. We're working on a fix and expect things to be back to normal in 9 - 12 hours.

Actiongram Beta availability
Hey devs, I see a lot of questions regarding when Actiongram will be available the store on HoloLens. Actiongram is still in closed beta and invite-only, but stay tuned! The open beta is coming soon. Keep an eye on hololens.com/actiongram and the @HoloLens twitter account to be the first to know when Actiongram Open Beta hits the store.
