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Discussions Cordova, Titanium, Unity, Xamarin Unity Questions or Problems

Instant Tracking Point Cloud

So I'm trying to use the new point cloud for instant tracking, however I cannot figure out the coordinates they are using.

Is there some kind of transform matrix for these?


472: (6.6, 0.0, -3.8)

473: (11.1, 0.0, -28.0)

474: (6.9, 0.0, -4.8)

475: (10.8, 0.0, -25.9)

476: (3.2, 0.0, 15.5)

477: (3.1, 0.0, 16.1)

478: (-58.0, 0.0, 345.1)

479: (-998.5, 0.0, 5404.7)

480: (4045.9, 0.0, -21732.8)

481: (15.6, 0.0, -51.2)

2 CommentsSorted by Oldest First

Looks like i was rendering them on all cameras which is what led to a weird view. However if you could just confirm the coordinate system they are in that'd be great

Hi Steven,

The points are in the same coordinate system as our modelView and projection matrix. Simply multiply the modelView matrix you get from our instant tracking API with a translation matrix created from the translation of the points in the point cloud. Our second instant tracking example 'Scene Picking' demonstrates this.


Best regards,

Andreas

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