How to get the 3D gaze origin

[TeresaKumo]

Hi, @swook Thanks for your great job, but I have a question about how to get the 3D gaze origin(determined during data pre-processing). The paper said "In pre-processing the EVEdataset, we apply a 3DMM fitting approach with interocular-distance-based scale-normalization to alleviate these issues" . However, I'm not sure about the specific process of this step. What should I do if I want to convert from landmark to 3D gaze origin? Besides, if it is possible to open some code of this part? Thanks a lot!