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Focus3, Vive Pro Eye and SRanipal

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I work in a company that makes software for eye treatment. We have an application for Windows that uses the Eye Tracker from the HTC Vive Pro Eye to calculate the deviation of each eye separately.

Now we want to make that application usable by the new Focus 3 as well.

We have the development in Unity version 2021.1.24f1.

To collect the information of each eye we use SRanipal_Eye_API.GetEyeData(ref eyeData). The problem is that the Focus 3 does not receive any type of information using this method.

I have not been able to find an example programmed for the Focus 3 either.

Everything I find obtains information to obtain the gaze point at which the user looks, but we need to obtain the information of the eye pupils, since we need to detect deviations in the eyes that the patients who use the application may have.

How can we get that information in Focus 3? How can we make it still compatible with HTC Vive Pro Eye?

I would appreciate any information you can give me.

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I think I have solved my problem,

It seems that I had an incorrect installation of SRanipal. I was checking everything and I thought I had a compatible version because the Tobii VRU02 Runtime version was 1.16.36. However, the installation that I had of SRanipal was the old way, that is, I had installed HTC Vive Pro Eye on the one hand and SRanipal on the other using the following link: https://www.vive.com/us/support/vive-pro-eye/category_howto/installing-eye-tracking-software.html

I have uninstalled that version of SRanipal, I have downloaded the Pro Eye installer again and installed it. In this new process, SRanipal is automatically installed (not like before) and although I have installed the same version of Tobii VRU02 Runtime (1.16.36), it does connect correctly with both the Vive Pro Eye and the Focus 3, so I assume something changes from process to process.

If I find something else I will update this post, for now I think my query is resolved.


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