Touch input problems with interactive USDZs exported from Reality Composer and viewed in AR Quick View

Question

Created Jun ’20

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I noticed that after exporting interactive USDZ files or reality files from Reality Composer and opening them in AR Quick View some touch events don't work at all/ are being ignored.

Especially when:
a) the object that should be touched was scaled in Reality Composer and has lower or greater scale than 100%

b) the object the user should tap/touch is laying too near to other objects - for example a cube is laying on a chair.

In this situations the touch event is not working in AR Quick View, even if it worked in Reality Composer play mode.

Is there a workaround for this problem?

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Answer 1

Graphics and Games Engineer OP

Apple

Jun ’20

Please file a bug report with Feedback Assistant. Be sure to include information such as the iOS devices and version where the issue is seen, along with the assets (.rcproject file and exported USDZ or Reality file).

0

Answer 2

Ashley72 OP

Jun ’20

Its most likely a collision box interference. The collision boxes in some cases are larger than your visible object. So if you have two objects near each other, its possible the object you are trying to interactively tap is being shielded by the other objects collision box. One way to examine the collision box for your asset - using showPhysics debug option in Reality kit. You could use Swift Playgrounds to build a simple Reality kit app that views your collision box. Unfortunately Reality Composer doesn’t show the collision box when building a scene. It will be nice to see Reality Composer add an option for viewing collision boxes in a scene.

1