AR Foundation Multiple Object Placement - Unity Augmented Reality/AR

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Unity AR:
This playlist is a collection of tutorials covering Augmented Reality in Unity including ARCore, ARKit features with the use of Unity ARFoundation as well as the Vuforia plugin.
This Video:
In this video, we extend the plane placement logic to allow for multiple different objects to be placed and tracked at once. This covers creating a simple UI Canvas, adding additional prefabs and updating the input tracking logic.
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[@DevEnabled]

In this video, we extend the plane placement logic to allow for multiple different objects to be placed and tracked at once. This covers creating a simple UI Canvas, adding additional prefabs and updating the input tracking logic.

[@siddhantgautam4884]

Hey nice video . What if we want to instantiate multiple game objects at single click within the detected plane at random positions.Any kind of help will be appreciated.

[@denahassani8517]

@@siddhantgautam4884 Hi Siddhant This is exactly what I want to do and I am looking for a code or tutorial. I was wondering if you have been successful to do that. If so, I would be grateful if you can share code or give me any hint. Thanks :)

[@han-gyeoljo2171]

These are the best tutorials!

[@vertexdesign2809]

Wow. The most useful and well explained AR placement video I have seen. I can't type quite as quick :), but followed to the letter, and now understand how this works, and am spawning X-wing and Tie fighters all over my living room!! Excellent series. Can't believe I actually got this to work. Thank you so much.

[@DevEnabled]

Great to hear it's been helpful and I can't imagine there's much that beats a room full of x-wing and tie fighters. Glad to hear you could keep up.

[@bilbostabbins1882]

Thank you so very very much for this I am going to try to implement selecting and repositioning each individual object and have a redo/undo system using the list Your tutorial is invaluable to me! Subbed

[@user-vz4cl6cw4y]

Thanks for the videos! It was really helpful.

[@rustamtalibzade6989]

Thank you very much!!! You save me!

[@HeadPack]

Happy to have discovered your channel. Enjoy the content of this series, the excellent narrative and voice over. I hope you can expand plane tracking some more. There are tons of image tracking tutorial videos out there, so perhaps that can wait a bit. Would be interesting to learn how to turn off the plane visualization once an object is placed, or how to change it from a polygonal shape to e.g. a consistent symbol. Maybe you could then expand a bit into ambient light and ambient reflections, aspects that help blend objects with the space they are projected on.

[@DevEnabled]

Thank you and thanks for the insightful ideas, it's really interesting to see what people think isn't being covered. I've already edited and scheduled the upload of this weeks video where I've moved onto Image tracking as I didn't get any real responses here :(. However, I'll be sure to try and loop back round to some of the plane tracking ideas you've suggested.

[@HeadPack]

Dev Enabled thank you very much for considering these suggestions. Looking forward to your next videos.

[@rustamtalibzade6989]

Thank you a lot!!!

[@andyward7961]

Hi, thanks for the tutorial. I'm trying to spawn multiple objects and then select different objects, drag and scale them. I noticed that you showed how to do this in a previous tutorial however it seems that the code to do that was purposely removed here as it wasn't required as i understand. Thanks.

[@calian8788]

Hi, really great video but i have problem and was wondering if you have any ideas why it's not. Detection of the different prefabs work, but if i go back to image 1 per say the (image 1) object wont load again

[@0GRANATE0]

Can we interact with the detected planes? Add rigidbody to the spaceships and let them hit the planes?

[@elif-du2mf]

thank you so much! I was wondering if this would work with unity 2021? also with an updated AR foundation package of course.

[@waynehome4061]

I'm trying to do a multiple mouse click button, I want to click on a blank 2d dice so then it will be a dice 1 face, then click on it again and it will be dice 2 face and so on to dice 6 face. I've got it to click from blank to 1 but that's it. I'm not sure if there is something I have to do with the (On Click) option on UI button but I don't know what script to write if any? Any help or tips will be most appreciated. Thank You

[@mnar786]

How to instantiate two different model on same position either camera move or not, like I have a pad and and a drone with one button press pad arrived working but with another button press drone should arrive on same pad . Thanks

[@arkhim9681]

hi , i like your tutorial, is easy understanding. but i have struggle to change object that already placed on the plane to other prefab i need some help, please

[@type90b]

great tutorials! any idea how to disable the plane finding visuals? I tried to switch out the ground plane prefab with one that has a clear material to no effect. Thanks!

[@DevEnabled]

Thank you. So if you look at the setup the plane manager is just a standard gameObject and the plane is just a custom renderer object. So you could either disable the object entirely when a plane is tracked or something, this would obviously cause issues as it would no longer be tracking planes. Or you could access the renderer and disable that. An approach you'd normally take for a quality app for designers or architects would be to allow the user to toggle the plane visualisation with a button or have it fade out over time using the renderer approach. Nothing here is really specific to AR you'd just need to Google how to work with Render assets with Unity in general. I have had some interest about these topics since posting this one so I did plan on returning to some improved plane tracking and things like that in the future, so that's just a brief overview until then.

[@atsfft103]

Anyone have an idea to block the ray cast from going through the UI?? Thanks

[@nemesisren7229]

Hey, how do I destroy spawned prefabs on touch? Please help me out

[@ZacharyAghaizu]

Thank you for this helpful series! Everything is working fine, but I'm getting this error message "ArgumentException: Index out of bounds. UnityEngine.Input.GetTouch". Should I ignore it?

[@ZacharyAghaizu]

FOUND THE SOLUTION :D - only change this //if(Input.GetTouch(0).phase == TouchPhase.Began) With if (Input.touchCount > 0 && Input.GetTouch(0).phase == TouchPhase.Began)

[@arjunm1246]

Hi when I create the bool TryGetTouchPosition(arguments) it says 2 errors 1. CS0177 :The out parameter 'touchPosition' must be assigned to before control leaves the current method 2.CS0161 'ArObjectDetection.TryGetTouchPosition(out Vector2)': not all code paths return a value

[@alexfaure6031]

Hi, how to delete precedent object for having just one by one objet ? tks !!

[@kakuize]

Hi Alex, Did you find out the answer to your question as I am after the same answer. Thanks

[@IslamicKahani]

Please Answer I Need this Visual studio code file and I need it Urgent I'm waiting on your Respose

[@elyarmohammadzadeh5565]

After I wrote the code encountered a null exception problem: NullReferenceException: Object reference not set to an instance of an object Can U help me?

[@IslamicKahani]

NullReferenceException: Object reference not set to an instance of an object This IS not an Error This an Exception shown when you run this Code If you will Build an APK then this program will RUN if you have only this exception

[@stevejhon9957]

But how to spawn just 1 object / prefab, and how to destroy previous prefab when you select another prefab button? Thank you for your tutorial...

[@DevEnabled]

Once you have the basic AR stuff running you just need to implement your standard Unity logic, there's nothing special going on, the prefab you spawn is just a standard GameObject so: Destroy(gameObject) whenever your programmed condition is met.

[@stevejhon9957]

@@DevEnabled okay thank you, i will search about that, for me it's totally different to do that when using vuforia hahaha *imho

[@DevEnabled]

@@stevejhon9957 Yeah, Vuforia definitely has the benefit that it can all be more self-contained. But Vurofia or ARFoundation are both easy enough to get going if you already understand working with Unity. I can't remember the exact setup or the video I mentioned it in but I made a point of tracking the Prefabs we spawn and keeping an array of them so you just need to use that reference when the button is pressed and use the Destroy() call.

[@laurisdupois8275]

I had the same problem so I made a void called when i press on a "cleaning" button : foreach (GameObject gameObject in placedPrefabList) { Object.Destroy(gameObject); } placedPrefabList.Clear(); placedPrefabCount = 0;

[@diegooriani]

Hi, where can I find the file for this project? Thank you in advance.

[@IslamicKahani]

YES I have THIS project

[@IslamicKahani]

Sir Can I Have this code ?

[@MitchTheMarine]

Just a heads up, I love your tutorials, but with my volume cranked up to its max I can barely hear you.

[@DevEnabled]

Sorry about that, have been working with a new room setup and trying to get the levels back to normal. Thanks for the heads up.

[@emmet3690]

hey if anyone is having trouble editing the textures of the spaceship, I found the following video pretty useful at the time mark 03:05 (kzbin.info/www/bejne/roDIoJeigbmrbsk) . I had to delete my prefab and just remake it after doing the process outlined in the linked video b/c it turned my original prefabs texture pink. After I did this though I was able to edit the material of the new prefab just fine

[@arjunm1246]

Hi when I create the bool TryGetTouchPosition(arguments) it says 2 errors 1. CS0177 :The out parameter 'touchPosition' must be assigned to before control leaves the current method 2.CS0161 'ArObjectDetection.TryGetTouchPosition(out Vector2)': not all code paths return a value