The short answer
VR180 is a specific type of stereoscopic 3D — one built around a wide, roughly 180° hemispherical field of view meant to be viewed in a headset that surrounds your peripheral vision. Stereoscopic 3D is the broader umbrella that includes narrower-framed photos, films and spatial video too.
Field of view is the real dividing line
- VR180: ~180° hemispherical capture, designed for full headset immersion, shot with fisheye dual lenses
- Traditional stereoscopic 3D / spatial video: standard framing similar to normal photography or film, viewed as a window rather than a surround
Which one for which use case
VR180 suits travel, events and anything where 'being there' matters more than composition — the wide field of view rewards looking around. Traditional stereo framing suits narrative, portraiture and anything where deliberate composition matters more than surround immersion.
Compatibility
VR180 content plays natively on most VR headsets including Meta Quest and PC VR platforms. Narrower stereoscopic formats like spatial video are more headset-specific but convert to SBS reasonably well for broader playback.
See it in action at 3dstreaming.org