JavaScript, the only programming language executed natively by web browsers, is by design single-threaded. This means that all web applications run in a single thread. This is perfectly sufficient for all standard cases, but sometimes we encounter situations where huge expensive calculations are so time-consuming that the application stops responding to the user. Typical cases are applications computing complex 3D scenes. Luckily, OffscreenCanvas and Web Worker technologies are here to change it.

One of the many interesting projects we currently work on in SABO Mobile IT is an iOS app based on ARKit for our long-time client Audi in cooperation with NavVis. We gather information about real objects‘ future/planned locations and render it in augmented reality as precisely positioned as ARKit allows us. We've encountered multiple technical challenges on the way, most of which were more or less related to the positioning. The considerable inaccuracy of ARKit has been the biggest issue, and this has required many hours of research and experiments in order carryout the project.