RealSense is a mix of infrared, laser and optical cameras to measure depth and track motion. It can be used on a drone that can navigate its own way through a city block, but it is also good at detecting changes in facial expressions, and Intel wanted to give RealSense the ability to read human emotions by combining it with an emotion recognition technology developed by Emotient.

Plugging in Emotient allowed RealSense to detect whether people are happy or sad by analysing movement in their lips, eyes and cheeks. Chipzilla said that it could detect "anger, contempt, disgust, fear,” and other sentiments.

A few months ago the fruity cargo cult Apple acquired Emotient. Intel has removed the Emotient plug-in from the latest version of the RealSense software development kit.

It is not clear at this point if Apple told Intel that it invented the plug in and so it had to sling its hook, or if Intel did not want Jobs’ Mob anywhere near its technology.

The RealSense SDK has features that allow it to recognise some facial expressions, but it's unclear if they’ll be as effective as the Emotient technology.