1.In vive developer page I found that, refresh rate for headset and for eyetracking output frequency are different. For headset it is 90 hz and for eyetracking output frequency its 120 hz.
2.I am getting different refresh rate for headset on different monitor. I tested on two monitors, one is Asus ROG(default monitor fps:144hz), another one is DELL(default monitor fps:60hz). From Asus ROG I have got 90 HZ frame rate for headset but from Dell monitor I am getting less than 60 hz. I wonder what relationship between monitor refresh rate and headset refresh rate is. Can you explain? I have calculated refresh rate using the following code:
3.Can you suggest or give example code how I can measure refresh rate for headset and eye tracking output frequency?
4.The last thing is: “Gaze data output frequency (binocular):120Hz” , to my understanding this means, we can collect 120 data points per second, right ? is there any dependency between Headset refresh rate and eye tracking output frequency?
How to get output from the eye-tracker faster than Update in Unity
in VIVE Eye and Facial Tracking SDK
Posted
Hi @Daniel_Y and @Corvus
I have several queries and findings :
1. In vive developer page I found that, refresh rate for headset and for eyetracking output frequency are different. For headset it is 90 hz and for eyetracking output frequency its 120 hz.
https://developer.vive.com/resources/knowledgebase/vive-pro-eye-specs-user-guide/
2. I am getting different refresh rate for headset on different monitor. I tested on two monitors, one is Asus ROG(default monitor fps:144hz), another one is DELL(default monitor fps:60hz). From Asus ROG I have got 90 HZ frame rate for headset but from Dell monitor I am getting less than 60 hz. I wonder what relationship between monitor refresh rate and headset refresh rate is. Can you explain? I have calculated refresh rate using the following code:
https://paste.ubuntu.com/p/YYHqbpnPNC/
3. Can you suggest or give example code how I can measure refresh rate for headset and eye tracking output frequency?
4. The last thing is: “Gaze data output frequency (binocular):120Hz” , to my understanding this means, we can collect 120 data points per second, right ? is there any dependency between Headset refresh rate and eye tracking output frequency?