Schuwi ee9b039d56 Improve rendering: barycentric interpolation, Gaussian blur, white-cloud palette ...

Replace nearest-neighbour BFS flood fill with Delaunay triangulation
(spade) + barycentric interpolation for smooth cloud boundaries.
Add NaN-aware separable Gaussian blur (σ=8 px, rayon-parallelised) to
remove triangulation facets. Switch colour scheme from blue bands to a
continuous green-to-white opacity blend matching the DWD app style.
Pixel interpolation loop is also parallelised with rayon.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

2026-03-06 22:19:46 +01:00

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