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Hologram not stable (swim) when attached to a specific surface

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Hi you there,

I attached hologram object around the real surface but observed apparent "swimming" when I moved my head. However when I raised the position off a bit (few inches higher), the issue is mostly gone. Note that I have calibrated the device several times. Does anyone have idea on what is wrong with this? Thank you!

Regards,
Simon


Why does my Surface Laptop display flash?

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I have a Surface Laptop with Corei5 and the display starts to flash or flicker when I connect the HP HMD to my Surface Laptop. The app launches and the sound comes on but the display in the headset doesn't come on. Shouldn't this device work with Windows Mixed Reality Headsets? Thanks.

Transfer file to hololens via POST httprequest (error 429)

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Hello,

I work on a desktop application to communicate with hololens glasses via httprequest (hololens is connected via USB), especially, I want to read and write files. To do that, I use the following code (code is more readable on stackoverflow) :

    // Consts
    public static readonly string API_FileQuery =
               @"http://{0}/api/filesystem/apps/file";

    public async static void UploadFile(ConnectInfo connectInfo,
                string knownfolderid,
                string packagefullname,
                string path,
                string filePath)
    {
        try
        {
            // Query
            string query = string.Format(API_FileQuery,
                                       connectInfo.IP);
            query += "?knownfolderid=" +
                        Uri.EscapeUriString(knownfolderid);
            query += "&packagefullname=" +
                        Uri.EscapeUriString(packagefullname);
            query += "&path=" +
                        Uri.EscapeUriString(path);

            //  Create http request
            var httpRequest = new HttpClient();

            httpRequest.DefaultRequestHeaders.Clear();
            httpRequest.DefaultRequestHeaders.Authorization =
               new System.Net.Http.Headers.AuthenticationHeaderValue(
            "Basic", EncodeTo64(connectInfo.User + ":" + connectInfo.Password));
            byte[] data = File.ReadAllBytes(filePath);
            ByteArrayContent byteContent =
                    new ByteArrayContent(data);

            HttpResponseMessage resp =
                    await httpRequest.PostAsync(query, byteContent);

            var responseMessage =
                    await resp.Content.ReadAsStringAsync();
        }
        catch (Exception ex)
        {
            //log some problems
        }
    }

    // Helpers
    private static string EncodeTo64(string toEncode)
    {
        byte[] toEncodeAsBytes = Encoding.ASCII.GetBytes(toEncode);
        string returnValue = Convert.ToBase64String(toEncodeAsBytes);
        return returnValue;
    }
}

I already have a GetFile method (same REST API but with GET http request) that works fine and gives me the file I want but the UploadFile method gives me the following response : StatusCode : 429, ReasonPhrase : 'Too Many Requests' (I try to upload a json file).

I don't really understand why I have this error, I just send 1 request (or I'm missing something).

For information, REST API definition can be found there.

Thanks

Failed to upload file Error [Object, Object] - In device portal

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This is a very strange problem, when I am trying to upload the file to HoloLens through device portal, I get this error. I searched this forum and found out that for some people it is happening in Edge browser, for others in Firefox. For me unfortunately it is happening in all browsers (Edge, Chrome, Firefox)
I can rename the file, save the file, also delete the file, but cannot upload a file! This is driving me crazy, because it is important for scenario to upload a configuration file to the local storage. From which the application reads settings.
I tried running Fiddler in the background and found out that I am getting HTTP 429 response, citing too many request!

Is it possible to attach external micro-USB sensors to Hololens USB port?

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I am working on application where external sensor (like temperature sensor , pressure sensor) data is Input for Hololens application.So, instead of creating another H/W circuit and giving input to application over wifi , thinking of attaching sensor directly to Hololens USB port.

Which version holotoolkit pacakage is the best version for the unity 2017.2.0f3? These have errors!

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The Unity version is 2017.2.0f3, and I create the new unity project and import the holotoolkit and holotoolkit-example unity pacakages, and build the colorPicker scene. But the console show the errors like below.

And I think I have finished the holotoolkit configuration well, it like this.

So, has anyone meet the same problems? Or has anyone build holotoolkit samples with the Unity 2017.2.0f3?

Use MediaCapture for Hololens

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Hi there,

I'm trying to develop an app for Hololens where i need to treat each frames from the camera,
I would want to use the MediaCpature but when I add the usings needed, VS don't recognize the Windows namespace.

I tryed to add some references but it don't work :(
Did I miss somethings ?

Thank you

Using headset with a Razer Core

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Hello, I have a Razer Blade with a Razer Core running a 1080ti. I cannot figure out how to make the Headset recognize the second GPU (1080ti) on the Razer Core. I only have the option of running it on the laptop's 1060.
Any tips on running the headset in a multi-GPU environment?

thanks


Trying to deploy "HolographicApp" on Hololens Emulator but getting error: DEP0001: Unexpected Error

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Hello
I am trying to run a basic example project on Hololens Emulator using MS Visual Studio 2017. I tried to create a new project in MS Visual Studio 2017 Community V.15.4.2 and chose HolographicApp for Hololens Emulator. I chose Release and X86. This is very basic example project but I could not deploy it. I get the following error. How can I solve this? Any suggestions? I also tried to build and run Origami Project but same result.

Severity Code Description Project File Line Suppression State
Error DEP0001: Unexpected Error: SmartDeviceException - BOOT_E_CONFIGURATION_ERROR [0x80131500] HolographicApp3

I installed latest MS Visual Studio 2017 Community and Hololens Emulator (10.0.14393)

(I run Hololens Emulator on Hyper V Manager and I could not use it by mouse . It says mouse input not captured, maybe this situation could be related with it and give a hint. I don't know if it is normal I have never successfully run anything on emulator)

I am adding Screenshots:

Acer headset pass-through AR? Show video from the cameras inside the headset

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Is it possible to use this "Mixed Reality" headset for, you know, mixed reality?
Also, can I see the realtime 3D mapping of the room on my desktop screen? Are there any debugging / visualization tools?

Thanks.

Closed Beta: Using SteamVR with Windows Mixed Reality

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Using SteamVR with Windows Mixed Reality
From the new documentation 3rd October 2017

The Windows Mixed Reality SteamVR preview allows developers to test and optimize their SteamVR experiences to run on Windows Mixed Reality headsets. This program is currently in an invite-only closed preview.

As we continue to develop the experience, we will grant access to additional developers in our program to test and provide us with feedback

Here is Alex Kipman blog The era of Windows Mixed Reality begins October 17

How to add code snippet

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How do you add a snippet of code to the body so that it looks nice and is easy to read?

Hololens App: Is it Possible to Launch a Unity app from another Unity App

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Hi, Is it possible to launch another Unity application from within a Unity application? If I Click a button in one application it would launch another application that is installed in Hololens. I would be very grateful if I could get example code on these specific requirement.
Thank You,

Single pass stereo rendering performance

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Is anyone here using single pass stereo rendering? I've gotten all my shaders working properly but it appears my frame rate is locked to 30. I've verified that in Quality Settings/Vsync count, it is set to 'Don't Sync'. Using multipass stereo rendering, I'm getting ~45fps.

Is it possible to trigger an event by moving over or into a holograms position?

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I am working with Hololens Emulator for my final year degree project. I am looking to make an application where a user can place holograms as markers around a room (eg. in front of doorways) and when they walk over or through a hologram it triggers an audio clip or another hologram to appear. Basically, I want to play an audio or display a hologram without the users input but rather their movement around a room.

I have completed some tutorials available but I am still searching to see if my idea is possible.
Can anyone shed some light on this? Thank you.


Fill Bar but for 3D object?

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I know how to implement a round fill bar using 2D Image in Unity, but now I have a donut shaped object. Is there a way to implement a 3D round fill bar using this object?

Unable to view my holospace in laptop

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I connected to the same wifi connection, but unable to connect the device to desktop web browser.

Including external .NET 3.5 DLL

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I've built a .NET 3.5 DLL and included in my Unity project (simply by dragging it into my Assets/ folder). Works fine in the editor but it seems to fail when deployed to the device. I suspect that the dll may not be included at all and that calls to the DLL's functions are throwing exceptions. My app runs but any object that uses the DLL has the corresponding MonoBehaviour disabled (I can tell because the objects' logic no longer seems to update after the first invocation of a DLL function). Unfortunately, I'm working on a laptop where I cannot use the HoloLens emulator to debug further. I don't know what the precise error is. Perhaps the DLL is being bundled after all. In any case, there is clearly a problem invoking any function in that DLL.

Has anyone encountered this? I haven't changed any of the DLL settings in Unity's inspector window because they appear to be acceptable (SDK is set to "Any SDK" and ScriptingBackend to "Any scripting backend".

Thanks.

Armor Clash AR, An RTS game on Hololens

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I made an AR RTS game on Hololens, Armor Clash AR. Like future technology in the movies, a holo battle ground is created before the commander, and tanks and bomber fighting on it

It is now on windows store and here is the video, wish you like it:

image

HoloTool kit not working with errors

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Hey guys,

I have followed every procedure of downloading the holotoolkit folder from github and or the MixedRealityToolKit - Unity - Master, then dragging and dropping the folders I need to import holotool kit into unity

So after I drag and drop the required folders or folder (have tried many variations) I try to build but I get this error

'Assets\HoloToolkit\Input\Scripts\Utilities\Extensions\InteractionSourceExtensions.cs(12,23): error CS0234: The type or namespace name 'Haptics' does not exist in the namespace 'Windows.Devices' (are you missing an assembly reference?)'

I followed this tutorial

https://hololens.reality.news/how-to/hololens-dev-101-build-basic-hololens-app-minutes-0175021/

As instructed, I select everything but the holotoolkit examples and when I build it doesn't work. I try the whole folder, still nothing. Also in the online tutorial a new window tab is created called 'HoloTool Kit' but mine is 'Mixed Reality Toolkit' so I am guessing the tutorial is old? But it should still build and work :(

I have the latest version of Unity... which folders do I drag and drop to the assets, please help
!

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