3D Virtual Tour

Help the viewer understand a place through movement, landmarks, and direct navigation. Keep the route, camera, room labels, and controls in agreement.

Establish the tour model

Inspect the scene, coordinate system, scale, floor elevations, door openings, renderer, camera controls, and asset-loading path. Preserve existing architecture and interactions. Choose the navigation modes the experience actually needs:

Mode	Camera owner	Navigation
Guided tour	Authored route sampler	Scroll, play/pause, or previous/next stops
Room destination	Authored room pose or route stop	Room list, hotspot, or floor plan
Inspect	Bounded orbit controller	Drag, pinch, zoom, and return
Free walk, when requested	First-person controller with collision	Movement and look controls

For a Seijaku-style experience, start with a guided route, room destinations, and optional model inspection. Add free walking only when requested or required; orbit controls alone do not provide a walkable interior. If the source is only a set of panoramic images, use linked panorama viewpoints rather than implying that it contains navigable geometric depth.

Author a route through real openings

Store route keys as progress/time, position, look target or orientation, and field of view. Store stops with stable IDs, labels, route coordinates, and associated asset groups. Keep the route coordinate independent of page height or animation clock so room links survive layout changes.

Place keys before, within, and after narrow openings. Use floor-relative eye height, account for raised floors and steps, and slow before turns or important views. Keep the horizon stable and avoid large simultaneous changes in position, gaze, and field of view. Favor physically plausible proportions over an excessively wide lens that stretches rooms.