Hi @assafwint, thanks for your patience whilst we investigated this issue. Unfortunately, I can confirm that neither the SRanipal SDK nor the Tobii XR SDK provides separate eye gaze directions vectors.
As the Tobii XR SDK operates directly on top of the Sranipal SDK layer, we are unable to provide this variable.
Our recommendation is that you create a similar post on HTC’s own support forum with the intention of proposing this feature request.
Our apologies for the disappointing news, we hope you are able to find some workaround for your needs.
Please do get in touch again should you require any further information. Best Wishes.