I need to insert some virtual objects in an indoor environment, but I need the position of these objects to be fixed. I have already tried using markers with the vuforia but it is complicated, it takes time to recognize. I'm thinking of using Google's ArCore. Does anyone know if this is possible and, if so, do they know how to do it?
I'm using Unity to do this. Can someone help me?
ARCore places the camera relative to the detected plane, so you will need a plane at some point so the application can locate the camera into the game.
HelloAR shows how this works, you may test into the unity editor and see how the camera moves arround the points and the detected plane.
One solution for your problem may be the image detection of ARCore + Plane detection, you place the image on the floor and when the image is detected you will have your objects in place while you move arround, but you will need to have a plane to move, not only the image detection, because if you don't, you will lose the objects once the camera loses the image.
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I'm making an augmented reality app with Unity and Mapbox for both ios and android. I have data sets that I am using to make markers in the real world when someone uses the app. I collected json files and converted them to geojson files and then I made a custom map in Mapbox Studio with these 4 different geojson files. Basically I want to have the markers from the datasets I collected to show up in the real world. I am not sure how to get these markers to show up in the real world and not with building prefabs. Example of my custom app made in Mapbox. Each color shows a different category of markers. There are four categories.
Here is an example of what I am referring to.
In this image skeletons can show up in the real world.
Here is an example of what I am not referring to.
In this image droids are place in a map but it is not the real world. It is like Pokemon Go where the map is generated with location but you don't actually see the real world when you are playing.
I already have my Unity project set up and this is the final step, but I am just having issues getting it to show up in the real world. So far, tutorials only show on to get it to reflect something like Pokemon Go.
You will have one scene with a stationary Camera. Your code will monitor the MapBox data in Update(), constantly passing the current GPS position and receiving your list of markers/points of interest. You can simply randomly spawn skeletons in a sphere area (see https://docs.unity3d.com/ScriptReference/Random-insideUnitSphere.html) around the Camera's transform position once you detect that the user's GPS position is in within a certain distance of the center of your point of interest. Keep track of that list, and destroy the skeletons once they leave the area - and have some way of making sure you only spawn them once for that area.
Your skeletons should have a NavMeshAgent, and you should generate a NavMesh onto the ARFoundation plane for them to walk on. In this case, the plane is probably dynamically created and you may need to use the dynamic NavMesh component https://github.com/Unity-Technologies/NavMeshComponents. If you tell the NavMeshAgent to go to a specific point it will walk to the closest point - so even though you get a random position in the sphere in 3D, the skeleton will move or spawn onto the nearest point so there is no need to figure out how to convert it to the 2D plane space.
Your AR view, both the tracking of the camera position/angle and the generation of a plane representing the ground, will be something generated by ARFoundation and it is simple to add the basic functionality. They have a prefab that already includes the camera and generates the plane for you. You can get ARFoundation via the Unity Package Manager. It will work with many different types of devices.
You should start with a cheap Android phone or tablet, even if you own an iPhone, because it's easier to load the APK and debug/develop your app via Android build.
This is a simplification. I recommend using Singletons, ScriptableObjects, Object Pooling, and other Unity paradigms and plenty of other things within Unity that would help you but as another user pointed out - you may want to spend time learning Unity, ARFoundation, MapBox, and ask more specific programming questions when you are ready.
I am trying to wrap my head around Vuforia's capabilities. I want to make an app which lets me place a 3D object into a camera view and have that 3D object stick to the world. I've been learning how to use Vuforia in Unity3D, and Vuforia seems to be slightly capable of this, but is severely limited by its craving for "Targets". It doesn't seem to be able to do much if I don't give it some sort of target.
One workaround I've found is to set the ARCamera's World Center Mode to DEVICE_TRACKING. This seems to let me place a 3D object into the world (in Unity) and have this object overlay into the camera feed, almost making it seem like it's anhcored to the real world. This doesn't work perfectly though: it tracks properly when I angle the device up/down/left/right (rotation), but it does not seem to track the device's translational motion; that is, when I move the device forward/back/left/right, the overlaid object doesn't get closer/farther nor does it rotate as I move around it.
Is it possible to get this sort of tracking out of Vuforia, or am I better off switching to something like Google Tango?
The difficulty with setting World Center Mode to CAMERA in Vuforia is that apparently 3D objects rotate around the camera based on its accelerometer/gyroscope changes. This doesn't allow for objects to be anchored to the environment. Instead they follow with the camera.
Kudan is a good markerless tracking option.
I have successfully enabled 3d object detection through vuforia in Unity. I have attached a crosshair (reticle) at the centre of the screen in screenspace overlay. when the user moves his phone over the 3d object which is produced upon object detection, I want a label to appear when crosshair crosses different parts of the 3d object. I tried many methods including, collision, cursor and reticle. It is not working.
Is there any easy way to implement this so that I can use event trigger pointer enter to make few things happening on the game.
I successfully solved my problem. The solution is using worldspace crosshair.
Most of the crosshairs available in the assets are cemeraspace. therefore using a worldspace corsshair solved my problem. It may be useful to someone in future.
I tryed to implement the "Measure It" app on Unity 3D. I started with the PointCloud example scene downloaded on tango's website.
My problem is, when i look in 1st Person view, the point cloud don't fiel the screen, and when i look in 3rd Person I can see the point outside the Unity Camera FOV.
I don't see this problem on the Explorer app, but it looks to be made in Java so I think it's a Unity compatibility problem.
Does someone have the same problem, or a solution?
Unity 3D 5.1.1
Google Tango urquhart
Sorry for my poor english,
Regards.
EDIT :
It looks like the ExperimentalAugmentedReality scene is using the point cloud to place markers in real world, and this point cloud is right in front of the camera. I don't see any script difference between them so i don't understand why it works. If you've any idea.
I think it makes sense to divide you question into two parts.
Why the points are not filling in the screen in the point cloud example.
In order to make the points to fill in the first person view camera, the render camera's FOV needs to match the physical depth camera's FOV. In the point cloud example, I believe Tango is just using the default Unity camera's FOV, that's why you saw the points is not filling the screen(render camera).
In the third person camera view, the frustum is just a visual representation of the device movement. It doesn't indicate the FOV or any camera intrinsics of the device. For the visualization purpose, Tango explore might specifically matched the camera frustum size to the actual camera FOV, but that's not guaranteed to be 100% accurate.
Why the AR example works.
In the AR example, we must set the virtual render camera's FOV to match the physical camera's FOV, otherwise the AR view will be off. On the Tango hardware, the color camera and depth camera are the same camera sensor, so they shared a same FOV. That's why the AR example works.
I am trying to make an mobile application that contains AR(Augumented Reality)-Mode using Unity3D. So I have connected my mobile device with my unity3d program, and the camera works fine. But when move the mobile device, the main camera inside unity program does not move the same orbit that the mobile device moves. Does any one know how to change or control the orbit of the main Camera in unity3d?
This could be happening due to a number of reasons. It could be due to non centered pivots, or coordinate systems for example.
Could you please specify which AR system are you using? As a side note, at work we recently had a project involving Unity3d and Metaio and it was a nightmare to bend the system to do what we needed, specially when we needed to do a lot of object positioning based on the local coordinate system.
When you refer to the orbit of the camera, I imagine it could be that the pivot of the camera is somehow offset and the camera is rotating around that offset. Or maybe that the camera is a child of the actual Game Object that is controlled by the AR system, in which case this parent node acts as a pivot to the camera.
In the picture below you can see that the camera is away from that center point and when it rotates it does it based on that center point, in other words the camera always tries to look at that center point and it gives that feeling of "orbiting" when it moves.
Here's the link to the image (I can't post pictures yet on this forum -.- )
http://i.stack.imgur.com/fIcY2.png