15 EASY Steps to Build a Colocated Multiplayer XR Game - Meta Building Blocks!

[@dilmerv]

📢 Everyone, be sure to checkout this link bit.ly/3CKf1lG for additional info on Meta's SDK and Colocation.

[@user-uu8xp9vw9i]

wow! Very nice tutorial! You saved my life! Thank you so much! I wanted to do Multiplayer Colocation without Futhon Fusion. This is exactly the solution i am looking for!

[@dilmerv]

I am super glad this helped you, thanks for your feedback and have fun!

[@user-uu8xp9vw9i]

@@dilmerv Thank you, Dear Dilmer!

[@user-uu8xp9vw9i]

@@dilmerv Dear Dilmerv, I just followed your steps and two Quests 3 device: A and B (one is logged in Meta account and one is test user), A and B start the application in the same room and nearby location (less than 1 meter), there were two problems: 1. The Name Tag black background square war showing but not Name on it. 2. From Quest3 A view, I can see the movement of Quest3 B’s Lightsaber but Quest3 B is far away from the Quest3 A in virtual space. Could you please give me some Tipps, how to fix the problem? Thank you very much in advance.🤝

[@gagagu01]

Really nice, thank you very much for your video!

[@dilmerv]

Hey thank you for your kind comment, I appreciated!

[@poolplayer322]

Amazing. Thank you

[@dilmerv]

Hey man! thank you for your feedback, let me know if you've any questions as you get into it.

[@edoardopignatelli5128]

Thank you a lot for this great video, just a question: can I use two real Meta accounts to perform the tests on the headsets, or do I need to use test users?

[@dilmerv]

That’s a great question and yes you can. The only requirement is that you will need your organization approved within the Meta Horizon Developer portal which is pretty straight forward, then just submit the Data Use Checkup requirements as shown on the video. Both demos I showed with headsets (2 players) were using a test account + a real meta account. Thank you for your comment.

[@edoardopignatelli5128]

@ Thank you for your quick reply, I will try this approach!

[@dilmerv]

Thanks and if you have any questions let me know.

[@gagagu01]

Is it necessary to upload the apk into the release channel or is it okay to upload it by link cable? And, is there a reason why you are using Unity Network instead of Photon?

[@dilmerv]

Hey great questions! 1- If you create a test user then there is no need to upload the APK to a release channel as it will bypass the Data Checkup requirements. Otherwise if you use real meta accounts then it will be required. 2- I used netcode mainly due to having more knowledge about it than photon. You are more than welcome to use it. Thanks for your feedback.

[@WirelessDreamer]

I'm seeing MRUK room layout shift on clients after colocation happens, but not the host. Did you find a fix for that?

[@dilmerv]

Hey great question! Did you create a scene model behind the scenes for the area in the host? Did you do the same on the other devices? What devices are you using?

[@WirelessDreamer]

​@@dilmerv A quest 3 and 3S. I checked out your test project, used the ColocationBasicDemo, added an effect mesh Building Block, which pulled in MRUK. the first headset is always fine, the second headset loads in fine at first, but once colocation happens, and the name tags are in the right place, that moves the MRUK room on the client.

[@WirelessDreamer]

The fix for MRUK after colocation is: MRUK.Instance.ClearScene(); MRUK.Instance.LoadSceneFromDevice();

[@dilmerv]

Thanks a lot for this feedback, I will test it out and I sent that info to Meta as well.

[@jarommadsen]

Good tutorial! I am not successful yet though following along. For the life of me I can't get my Quest 2 and Quest 3 to show the Colocation Anchor on my own demo project. As a sanity check I'm trying to use your Github demo project but that's quite tricky to get working as well it would seem. Do you think you could provide some steps for getting the project running? When I click Build it says "Missing Project ID - Because you are not a member of this project this build will not access Unity services". I hit "Yes" to continue but then get "Can not sign the application - Unable to sign the application; please provide passwords!". Not sure what to do. Will this demo project even work? You made it sound like for Colocation to work you have to have the app setup in the Meta Developer Console so do I have to set up my own demo app to get your demo to work?

[@dilmerv]

Hey thanks for your comment. Ok a few things you will need to do to get it to work if you are cloning the sample repo. 1- Go to project setting in Unity and unlink the project. Then you will need to link it to your own. 2- Create a new app under your own organization as shown on the video, you will also need to enable the data checkup settings I showed in this video as it is required to be able to allow you sharing your room info with other colocated users. 3- Under Player Settings > Android > Publishing Settings just create a new key store which you can do with Unity, give it a password and make sure that you type the password after assigning the key information. Then you should be able to build the APK. Let me know if you have other questions.

[@T4m4g0tchi]

Hi ! Thank you for this tutorial ! Juste a quick question, sometimes the mesh of my room doesn't match with the real world, and like "drift" a little. It happen on both headset, even when only one is online. Has someone have an idée of what happe, ? I didn't found anything to help me resolve this.

[@dilmerv]

Thanks for the info, take a look at the comment below by "wirelessDreamer" looks like he found a fix for this. I'll be testing this as well to find out if there were other issues during the setup.

[@AntonioOlia]

Thank you so much great tutorial... I followed all the steps I followed all the steps I linked the app on unity game service and on meta, I uploaded an alpha build on meta quest developer hub and immediately after I shared it on another real account, unfortunately when I go to use it on two devices at the same time (quest 3s) it seems that they don't communicate with each other. Furthermore, in one device I see the spatial anchor and in another I don't see it.

[@dominikarola1043]

How did you grab the cube? Because i can't do this ;/

[@dilmerv]

Hello there and thank you for your comment. Did you add a “Networked Grabbable Object” to your hierarchy?

[@dominikarola1043]

@@dilmerv yes, i added it

[@dominikarola1043]

aa okay, i saw that i don't have checked active headset

[@dilmerv]

Awesome I am glad you found the problem 🙏