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3951005您好，感谢您的帖子。本平台为我们的英文论坛；中文沟通还烦请您前往我们的中文论坛平台。

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您好，

看完了您的Youtube视频，好像Aximmetry Eye没有偏差 （使用AR_example.xcomp的时候跟踪好像准确）。
请问，使用AR_example.xcomp的时候也出现偏差的问题吗？不出现的话，问题应该是在另外一个场景里告示板的高度不准确 （告示板不在水面上，因此不跟它在一起动）。

此致敬礼

Thank you for your response: Mate@aximmetry.

During my testing in STUDIO, everything was normal and very accurate 

In the final UE5 scene, the billboard function was not enabled because once it was enabled, the camera view could not be found. After reading your response, I feel that the issue might be due to the inaccurate height in the scene or the billboard height. I hope you can provide relevant materials and tutorials on adjusting the scene and billboard height or calibration. Thank you again!

Hi 3951005,

Yes, the video input's image can disappear when the Use Billboards feature is first turned On. It's just part of the correct process of setting it up.

Below you can find a link to a document on our Learn site describing the placement of Billboards in these sorts of cases. You can find a detailed step-by-step description in it:
https://aximmetry.com/learn/virtual-production-workflow/preparation-of-the-production-environment-phase-i/green-screen-production/tracked-camera-workflow/tracked-camera-billboards-placement/

I hope you'll find it useful.

Warmest regards,