Google introduced Cardboard in 2014 as a low-cost virtual reality platform using just a smartphone and cardboard viewer. In 2015, an updated Cardboard v2 was released alongside the Google VR SDK. Daydream was then introduced in 2016 as a higher-end mobile VR platform requiring compatible phones and headsets like the Daydream View. At Google I/O 2017, Google announced standalone Daydream headsets with inside-out tracking and the next Daydream update called Euphrates.
This document discusses various topics related to virtual reality, including Daydream released in 2016, the Cardboard platform, using Unity and GitLab/GitHub for VR development. It also mentions converting files to PDF format and using tools like Markdown, Re:VIEW, Paint.NET for creating documents, images and ebooks. Numbers like 2017, 4/3, 36P and file formats like PNG, PDF are included throughout.