RiverPaths: Early Q-RRG Ridge Extractor (Prototype)
Live field → ridge “rivers” → curvature-bounded path that bends around obstacles without jitter.
What you’re seeing: Q-RRG extracts ridge lines (“rivers”) from a live scalar field and selects a curvature-bounded spine that flows around obstacles. No hard re-paths, minimal jitter.
How to read this demo
- Field — The background map is a scalar field. Think of it as “terrain of ease.”
- Ridges — Dotted bands mark high-value “rivers” in the field (candidate lanes).
- Chosen Path — The solid glowing spine is Q-RRG’s selection: smooth, curvature-bounded, and stable.
- Stability — As the scene shifts, the spine bends naturally instead of snapping or re-pathing.
- Comfort — Lower curvature/jerk → less nausea, smoother camera/NPC motion.
Tip: Watch the stats pill (top-right) for smoothness and frame budget.
Demo FAQ
What is Q-RRG doing here?
It extracts ridge lines (“rivers”) from a scalar field and selects a single spine that minimizes curvature/jerk while respecting scene changes.
Why does this feel smoother than splines/A*?
Traditional splines don’t account for the field and can snap when geometry moves. A* re-paths hard. Q-RRG optimizes a continuous action that bends without discontinuities.
What do the three labels mean?
Field: background potential map; Ridges: high-value lanes; Path: the selected spine.
Can this run inside Unity/AR?
Yes. Today we ship a Unity editor tool (“Living Spline”) and a Web demo. AR/Unreal bindings are on the SDK roadmap.
How do I try or buy this?
Grab the Starter Pack (River Paths + Living Spline + notebooks) or join the SDK waitlist on the home page. For pilots, email sales@echopathxr.com.
Q-RRG Navigation
Switch between the pure Q-RRG field demo and a side-by-side comparison against classic A*.
What’s Next
Upcoming demos that build on RiverPaths. Join the waitlist to get early access.
Living Spline — Editor
Drag props, the rail holds. Witness-sealed IDs for repeatable shots.
ETA: Alpha clip soonCorridor Overlay
Heatmap → soft corridors over floor plans. One-click PDF report.
ETA: Notebook previewMelody Spine
Extract a smooth “spine” from melody fields; MIDI export.
ETA: Demo clip