3d-virtual-tour

1# 3D Virtual Tour
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3Help the viewer understand a place through movement, landmarks, and direct navigation. Keep the route, camera, room labels, and controls in agreement.
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5## Establish the tour model
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7Inspect 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:
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9| Mode | Camera owner | Navigation |
10| --- | --- | --- |
11| Guided tour | Authored route sampler | Scroll, play/pause, or previous/next stops |
12| Room destination | Authored room pose or route stop | Room list, hotspot, or floor plan |
13| Inspect | Bounded orbit controller | Drag, pinch, zoom, and return |
14| Free walk, when requested | First-person controller with collision | Movement and look controls |
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16For 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.
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18## Author a route through real openings
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