Prototype: does a rendered-splat route view read as navigation? #12

New Issue

2026-08-11T15:41:39Z

lars commented

2026-08-11 15:41:39 +00:00

Question

Make something cheap and concrete to react to, and judge whether the chosen presentation actually works as navigation.

The decision was a rendered splat view — the photorealistic model drawn from the user's pose with the route overlaid, no camera passthrough. That is the product, and its usability is unvalidated. The open risk: a photorealistic render of a corridor you are physically standing in invites direct comparison with reality, and every artifact and every centimetre of pose error becomes visible. Passenger-facing navigation may want something deliberately more abstract.

Build a rough version — a splat view with a route overlay, a "you are here" indicator sized by confidence, and the next instruction — and react to it. Compare against at least one alternative treatment (stylized/abstracted rather than photoreal, or a hybrid with a 2D deck map) so the choice is made against something.

Link the prototype from this issue. The output is a decision about the presentation, not shipped code.

Part of the wayfinder map #1.

## Question Make something cheap and concrete to react to, and judge whether the chosen presentation actually works as navigation. The decision was a **rendered splat view** — the photorealistic model drawn from the user's pose with the route overlaid, no camera passthrough. That is the product, and its usability is unvalidated. The open risk: a photorealistic render of a corridor you are physically standing in invites direct comparison with reality, and every artifact and every centimetre of pose error becomes visible. Passenger-facing navigation may want something deliberately more abstract. Build a rough version — a splat view with a route overlay, a "you are here" indicator sized by confidence, and the next instruction — and react to it. Compare against at least one alternative treatment (stylized/abstracted rather than photoreal, or a hybrid with a 2D deck map) so the choice is made against something. Link the prototype from this issue. The output is a decision about the presentation, not shipped code. --- Part of the wayfinder map #1.

lars added this to the Wayfinder: RN prototyping spec milestone 2026-08-11 15:41:39 +00:00

lars added the wayfinder:prototype label 2026-08-11 15:41:39 +00:00

lars added a new dependency 2026-08-11 15:42:13 +00:00

#3 Research: WebGL2 splat viewer performance inside iOS WKWebView

lars added a new dependency 2026-08-11 15:42:14 +00:00

#14 Write the Session 1 spec (pose to splat rendering)

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