How does Depth Lab provide 0-65m depth values?

[googlesamples]

How does Depth Lab provide 0-65m depth values?

[ruofeidu]

Hi valantano,

I updated DepthLab legacy SDK (deprecated) to 30m depth sensing around Google I/O. We have an engineer updating DepthLab AR Foundation SDK but it's not complete yet. The paper and the Play Store app were built with the legacy SDK.
If you can get normalized depth from 0 to 1 without the 8 meter clipping, would you like to try just converting it to 0-30m?

I have an updated shader here:

https://github.com/googlesamples/arcore-depth-lab/blob/arcore_unity_sdk/Assets/ARRealismDemos/DepthEffects/Shaders/BackgroundToDepthMapCore.cginc#L48

and a new fine-tuned colormap :) : https://github.com/googlesamples/arcore-depth-lab/blob/arcore_unity_sdk/Assets/ARRealismDemos/Common/Textures/DepthColorRamp.png

Thanks,
Ruofei

[valantano]

Hi Ruofei,

thank you for the fast response.
Sadly, as soon as I know, AR Foundation only provides the Depth in meters in a texture. And there they have already set all values above 8m to 0. At least in AR Foundation v.4.
It seems that I will need to use AR Foundation v.5. But your explanation helped me to understand the reason why you guys are able to provide the 30m in Depth Lab :)

Thanks,
Valentino

[ruofeidu]

Let me reopen this and ask relevant engineers tomorrow! Thanks for letting me know!

[ruofeidu]

Hi Valentino,

Please check out https://docs.unity.cn/Packages/[email protected]/changelog/CHANGELOG.html and from 4.1.0-preview.13, it switches to using all 16-bits from the pixels in the ARCore environment depth image, rather just the lower 13 bits :)

Cheers,
Ruofei