When it comes to what a VR video really is, everyone’s got an opinion. Any video could be considered VR, because you’re mentally transported to another world when you play. Generally, this category would be more or less limited to 3D and 360-degree videos. Both 2D and 3D videos exploit traditional filmmaking techniques and utilize partially built sets. Shots have to look good from the perspective and in the direction it’s taken.
You need several 3D-printed camera rigs that hold a number of cameras in a spherical shape. You have to mount each camera at a specific angle so its field of view will overlap parts of the views of the surrounding cameras. This overlap is needed to do away with any gaps in the footage and enable flexibility at the seams. The cameras capture video at the same time when they are recording and cover the whole 180° by 360° area.
You also need at least one camera which captures two properly time-synced and registered streams, approximately double the storage and streaming rate as for regular video, and additional post-processing. One also requires 3D-capable consumption gear, which can be costly.
The hardest videos to make
These involve 3-D virtual environments. You need to capture scenes from multiple angles and build models, which can be viewed from any angle and position. You need hundreds of times more data than other videos and very high streaming rates and processing power.
Multi-perspective 3D videos are of medium difficulty. They involve every challenge of 3D movies multiplied by as many perspectives as the maker wants to capture from. You also need to edit out the other cameras and allow viewers to switch between these perspectives.
360-degree videos are the easiest of the three, but they are not easy by any means! They require special camera rigs and lengthy processing periods to achieve an appealing look.
To make each of these types of videos, efforts going far beyond traditional filming are required.