360 Video Overlays: What They Are and How They Differ

The short answer

A 360 video overlay is a graphic, such as a logo, caption, watermark or cover patch, added to spherical video so that it sits correctly inside a full 360-degree scene. It differs from an ordinary overlay because a 360 frame is a flattened projection of a sphere. The graphic has to be shaped to match that projection, and it can either stay fixed in the scene or follow the viewer's gaze. Overlays are a visual layer only and do not change what a microphone picks up. One condition limits all of this. When a 360 camera is used as a webcam for live calls, conferencing apps generally receive a conventional flat view, so overlays at that stage behave like ordinary 2D graphics.

Common types of 360 overlay

• Logos and watermarks placed somewhere in the scene
• Text such as titles, captions or name labels
• Nadir or zenith patches: discs that cover the bottom (nadir) or top (zenith) of the sphere, often used to hide a tripod or mount
• Interactive markers or hotspots, which work only in players that support them

How 360 overlays differ from standard overlays

Aspect | Standard (flat) overlay | 360 overlay

Frame geometry | Ordinary rectangle viewed as-is | Sphere unwrapped into a rectangle, commonly equirectangular

Placement | X/Y position on the frame | Direction within the sphere (where the viewer must look)

Distortion | None beyond scaling | Must be warped to match the projection or it appears stretched in playback

Viewer relationship | Always visible in frame | Can be world-locked (fixed in the scene) or head-locked (follows the view)

Tools | Any video editor or virtual camera app | Needs 360-aware tools to place graphics on the sphere correctly

Equirectangular projection stores the full sphere as a 2:1 rectangle. Areas near the top and bottom of the sphere are stretched heavily across the frame width. A graphic pasted flat onto that frame can look acceptable near the horizon line but distorted toward the poles. If it crosses the left or right edge, it splits across the seam where the sphere wraps around. This is why 360 editing tools project overlays onto the sphere rather than simply layering them on the flat frame.

The world-locked versus head-locked choice changes the viewer's experience. A world-locked logo stays in one spot in the scene, and viewers may never turn to see it. A head-locked caption stays in view wherever the viewer looks, which keeps it readable but can feel intrusive in immersive playback.

When a 360 camera serves as your webcam

Live conferencing apps are built around a standard flat video feed. A 360 camera used for calls is therefore usually presented as a single reframed, panoramic or split view, produced either by the camera's own software or by a virtual camera app. Any overlay added in that chain applies to the flat output, so the spherical placement issues above mostly do not arise. Spherical overlay techniques matter mainly for recorded 360 content shown in players that support 360 playback. This is a general pattern, not a confirmed behavior of any specific camera or app.

What overlays mean for capturing speech

Adding an overlay does not alter the audio signal. The surrounding setup, however, can affect how your voice reaches the call.

• Microphone selection is separate. A virtual camera device commonly carries video only, so the conferencing app's audio input setting decides which microphone is used. Confirm it points to the intended source, whether that is the camera's built-in mic, a headset or a USB microphone.
• Spatial audio may not carry over. Some 360 cameras can record multi-channel spatial audio for immersive playback. Calls generally use mono or stereo audio, so directional sound cues should not be expected in a meeting.
• Processing load can cause glitches. Reframing and overlay rendering use CPU or GPU resources. On a heavily loaded computer this can contribute to dropped frames or audio dropouts, and testing with overlays off helps isolate the cause.
• Audio and video can drift out of sync. Extra video processing can delay the picture relative to the sound. If lip movements look out of step, check whether your software offers an audio delay or sync offset.
• Microphone distance matters. A 360 camera placed in the middle of a table may sit farther from the speaker than a monitor-mounted webcam. Greater distance generally lowers voice level relative to room noise and echo.

Evidence gaps

No product documentation, specifications or test results were available for this guide. For that reason it does not name specific cameras or software, compare audio quality, or give latency figures. Before relying on a particular setup, check its documentation for three things: whether it supports spherical overlays, what kind of view it sends to conferencing apps, and whether its virtual camera passes audio or video only.