Recent Apple job announcements suggest the tech giant is aiming to build a 3D world for its yet-to-be-announced mixed-reality headsets.

Apple’s VR and mixed reality headsets aren’t a secret anymore, but new job postings reveal the company is stepping up its work to beef up the device with content.

Apple has listed more than 30 jobs related to augmented and virtual reality (AR/VR) in recent weeks. The positions typically seek a mix of software and hardware engineers for the tech giant’s secretive team: Technology Development Group (TDG).

In one of the posts, Apple requests a software producer with experience in visual effects. Since that person would be able to create digital content for…