Cannot manually set ZED camera position in Object Detection mode

MoritzSkowronski commented 3 weeks ago

Preliminary Checks

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[X] This issue is not a question, feature request, or anything other than a bug report directly related to this project.

Description

I want to be able to set the ZED camera at a predefined position in world space. For this, I have to disable positional tracking in the ZED manager. However, when running the object detection sample, the ZED Manager crashes throws an "INVALID_FUNCTION_CALL" error on StartObjectDetection().

Steps to Reproduce

Open the Object Detection Sample
Disable "Enable Tracking" under positional tracking
Run the game

Expected Result

The ZED Rig remains at the position set in the editor and the objects are being tracked.

Actual Result

The ZED manager throws an error

ZED Camera model

ZED2

Environment

ZED SDK: 4.1.1

Anything else?

No response

Bvallon-sl commented 3 weeks ago

Hi,

Yes, the positional tracking must be enabled to use the Object detection/body tracking module.

To be able to move the ZED Camera game object in the scene, you need to disable the "Set Floor as Origin" setting available in the ZED Manager script, in the inspector window.

MoritzSkowronski commented 1 week ago

But does this mean that each time the Unity application starts, the camera will be rotated slightly differently?

Bvallon-sl commented 1 week ago

If the camera does not move, the initial should be the same at each start. It is estimated using the internal IMU of the camera.

stereolabs / zed-unity