Occlude objects below your target

Hide objects in the floor or the table, revealing them through animations or virtual holes in the real world

Jens Bäckvall avatar
Written by Jens Bäckvall
Updated over a week ago

Occlusion is an exciting feature that can be used for dozens of things. Why not

  • add a hidden virtual room inside your packaging?

  • let virtual objects com out of the floor?

  • make your avatar come out of a hidden room beneath your business card?

  • and much more.


Occlusion is exactly what it sounds like; the ability to occlude, or hide, something beneath or behind something else.

In Augmented Reality a common use case could be making your real-life packaging have secret hidden rooms and compartments where objects, characters and videos come into view behind a virtual lid or doorway.

Adding Occlusion to your AR Scene

First of all, set the ground plane as an occluder and then add a virtual hole to the ground plane:

  1. Check the box that says "Show the ground plane in the editor".

  2. Check the box that says "Occlude objects beneath ground plane".

  3. Click "+ Add a hole in ground plane".

Now that you have added a hole in the ground plane, you can add a 3D object below the hole, so that it is only visible when looking into the hole:

You can now preview your Hololink and see that the whole astronaut is only visible when viewed from above.

The best effects are created when adding walls and a bottom to a hole or, as in the first gif, adding animation so that an object is lifted out of the hole as if on an elevator.

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