scene: ridge heightfields, slope shading, endless world-x drift #81
2026-11-10
scene: ridge chunk jobs own their scratch canvas; tests for the endless drift and the ridged core
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Soul pass fixes. The shared scratch canvas was resized when a job was created but read in a deferred task, so chunks of layers with a different blur pad got a faded right edge. Each job now makes its own scratch when it first runs and drops it when done. A chunk is baked, put and scatter-filled in column bands, the blur is one draw; allocation is a task of its own. rotate no longer needs a forward reference (startDrift takes the finish callback). Tests: the fake animation can finish, so the rotation is tested at scene level (world columns per chunk, slot repositioning, restart, recycled chunk id, one chunk of drift distance, per-job scratch width at the moment of each blur). The ridged core has direct tests for the fold, the warp, the previous-octave weighting, the lacunarity and contrast by distance. README sun statement matches sunDirection. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
scene: ridge heightfields with slope shading and endless world-x drift
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Each ridge layer is a function of world-x (ridged multifractal value noise, domain-warped, one function and a parameter row per layer) instead of a periodic strip. World-x is baked in 1.2-viewport chunks on demand: the first view bakes one chunk per layer, the rest are baked in ~6 ms tasks, and the compositor slides a track that is recycled each chunk. A slow yaw/pitch sway rides on top. ridgeBake.ts shades each column from the crest slope against the sun with a lit rim, a light-to-haze face gradient and erosion streaks, reusing the existing aerial perspective as the depth treatment. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>