vangel76andClaude Opus 5.5 5d4b644865 #880: motion paths with overflowing or NaN arc length evaluate without panicking ...

Problem: spatial keys with huge coordinates (the Position field accepts any
finite number) overflow the motion path's arc length to NaN. SpatialSeg::at_length
only returned early for len <= 0.0, so NaN reached s.clamp(0.0, len), which
panics. The viewer's motion-path overlay evaluates on the UI thread, so moving
the current time over such keys crashed the app.

Fix: at_length returns the segment start unless the length is positive and
finite. A seeded fuzz of evaluate/velocity/spatial tangents with NaN, infinite
and +-1.7e308 values (200k tracks) found no other panic or hang.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

2026-10-11 18:34:08 +02:00

..

examples

G2: improve editing reliability and Windows rendering fidelity

2026-10-06 00:00:31 -05:00

src

#880: motion paths with overflowing or NaN arc length evaluate without panicking

2026-10-11 18:34:08 +02:00

Cargo.toml

M0.1–M0.7: workspace, time/geom/color/keyframe/project/raster/path/text/effects/render crates

2026-10-01 14:05:20 -04:00