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feat(wasm): colour the burn by arrival time and the front by rate of spread - #213
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…spread The faded perimeter trail is replaced by two layers built from what the engine already reports. Arrival paints the burnt ground by when it caught fire, the arrival-time map ForeFire writes natively, with isochrones at a round interval. Spread colours each segment of the front by its nodes' rate of spread, which the worker now keeps from the `vel` in print[] instead of discarding it. Each frame's fronts become one Path2D in domain metres once per run, so the arrival layer redraws through a transform as the view pans and zooms.
HugoFara
marked this pull request as ready for review
October 23, 2026 22:48
filippi
approved these changes
Oct 24, 2026
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Follow-up to #211. The demo's perimeter trail is replaced by two layers built from what the engine already reports:
velinprint[].Each has a toggle and a key. Tested in Chrome and Firefox.
In 2D
3D view
Drafted with Claude Opus 5.5, reviewed by me