Tracking user focus

A computer-implemented method of tracking user focus in a digital environment, comprising:

• receiving, from each of a plurality of user devices, input data indicating one or more user actions performed via the user device while the user device renders, from a perspective of a virtual camera controlled by said one or more user actions, a three-dimensional model commonly provided to the plurality of user devices, wherein the received input data further indicates, for each user action, a focal position on the three-dimensional model relating to a position and/or orientation of the virtual camera relative to the three-dimensional model following the user action;
• and
• determining, based at least in part on the received input data, a spatial distribution of user focus on the three-dimensional model, in dependence on the indicated focal positions associated with the respective user actions, wherein:
• a plurality of objects is positioned on the three-dimensional model when the three-dimensional model is rendered by the plurality of user devices;
• the method further comprises determining, based at least in part on the received input data, impression data indicating a number of impressions of a first object of the plurality of objects, based at least in part on the indicated focal positions for the respective user actions;
• and
• determining the impression data comprises incrementing an impression count upon determining, based at least in part on the indicated focal positions for the respective user actions, that a predetermined set of viewability characteristics are satisfied for one of the plurality of user devices.

A non-transitory storage medium comprising instructions which, when executed by a computer, cause the computer to carry out operations comprising:

• receiving, from each of a plurality of user devices, input data indicating one or more user actions performed via the user device while the user device renders, from a perspective of a virtual camera controlled by said one or more user actions, a three-dimensional model commonly provided to the plurality of user devices, wherein:
• a plurality of objects is positioned on the three-dimensional model when the three-dimensional model is rendered by the plurality of user devices;
• and
• the input data further indicates, for each user action, a focal position on the three-dimensional model relating to a position and/or orientation of the virtual camera relative to the three-dimensional model following the user action;
• and
• determining, based at least in part on the received input data, impression data indicating a number of impressions of a first object of the plurality of objects, in dependence on the indicated focal positions for the respective user actions,
• wherein determining the impression data comprises incrementing an impression count upon determining, based at least in part on the indicated focal positions for the respective user actions, that a predetermined set of viewability characteristics are satisfied for one of the plurality of user devices.