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3d model detection

April 26, 2011 - 4:52am #1

How to detect 3D models in unity ?
Instead of image i want 3D objects to be detected by the ar camera.

Can anyone help me on this?

Re: 3d model detection

May 3, 2011 - 11:47pm #5

hey kim,
M trying to create a multi image target. and i have mailed you the images which are not accepted by the site since it says low aspect ratio plzz check the images.

Re: 3d model detection

May 3, 2011 - 4:56am #4

To track a cuboid object you'll want clean images of each side of the object to create a Multi Target. If it is something thin like a mobile phone you could try just tracking the prominent face and ignoring the sides. I have a feeling a mobile phone won't have enough features to support tracking, however.

Make sure you are entering the correct aspect ratio for your target in the Target Management System, under Expected Trackable Dimensions. Are you trying to create an Image Target or a Multi Target? Feel free to send troublesome targets to

and we'll take a look.

- Kim

Re: 3d model detection

May 3, 2011 - 4:22am #3

thanks kim but cant we click the photos of a 3d object like a mobile phone which is similar to cuboid and create its trackable?

Actually i have been trying this but whenever i try to upload the images for that it says low aspect ratio eventhough i am using 5 mp camera for the pics.

Re: 3d model detection

April 26, 2011 - 5:33am #2

You cannot detect arbitrary 3D objects, but you can detect 3D objects made up of planar image targets (e.g. a cereal box). Look for the MultiImageTargets section of the Developer Guide and the AR Extension for Unity 3 documentation (https://ar.qualcomm.com/qdevnet/sdk/unity/ar). You can create simple cube objects using the My Trackables system, or you can edit the config.xml file by hand to arrange image targets into the desired configuration.

- Kim

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