Background scene: two-pass WebGL2 terrain and world tree with login pull-back #1
2026-11-02
scene: live reduced-motion, chunk-load failure, per-stage CultMath
- matchMedia 'change' listener freezes/thaws a running scene; removed on dispose and context loss - startBackgroundScene catches a failed scene chunk import: onCompileFail, null, no throw - shaderSource compiles each stage with only the CultMath declarations it reaches (cultmathTrim.ts); Phacelle stays a separate file, terrain only - README: 'still' is a live rendered frame Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
creatures: cite creature-projection-v2
Header cites heimdall-body:follow_up:ratatoskr-creature-projection-v2, which supersedes heimdall-body/ratatoskr-creature-projection. Citation only. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
creatures: cite the Bifrost creature-props contract
Header names heimdall-body/ratatoskr-creature-projection, the shape, invariants and consent rule, and marks the bucket scales as placeholders. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Background scene: lint and type clean, integration contract
Fixes the 21 eslint errors and 2 tsc errors Void's review found in features/scene (WORLD.phacelleGradBound is typed number, not the literal 7). Adds the contract the host needs: client config backgroundScene.tier as flag and ceiling (off by default, lowered by saveData / memory / cores), lazy startBackgroundScene, still and low tiers, onCompileFail (createScene frees linked programs and returns null), webglcontextlost handling, and creatureScale where neutral overrides sizeBucket. Scene.ts gets its first tests, on a fake GL. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
2026-11-01
Background scene: sky costs no noise; one sun term
Sky rays were ~90% of pass 1 (noSkyMarch variant: 292 -> 26 ms, SwiftShader 960x540 L0). terrainDistance now returns early where the plateau mask is 0 (height exactly 0), skipping fbm and Phacelle there: pass 1 292 -> 159 ms, same step values. skyColor keeps one sun term (the wide glow is gone; screenshots differ by that and by TAA/time, not compared pixelwise). Harness: noSkyMarch variant, ONLY=<names> selects variants. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Background scene: phacelleGradBound 6.3 -> 7.0 from Libby's measured sup
Libby measured sup |grad| 6.63 at |side| = 1.5, n = 0 (CultLib PR #1 head 990521b3); 7.0 adds margin. The shader passes roughness 0 as a literal, so no 1/(1-n) factor is needed; the comment records it. Pass 1 under SwiftShader: terrain 288.8 ms vs 287.5 at 960x540 level 0, 75.3 vs 75.7 at level 3 (noise). Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
2026-10-31
Background scene: two-pass WebGL2 terrain and world tree with login pull-back
Pass 1 sphere-traces CultMath noise terrain (fbm plus Phacelle erosion) and the world tree with a conservative Lipschitz step, writing colour and depth. Pass 2 marches fog and clouds only up to that depth at low resolution with TAA. The camera pulls back from the tree on login. Vendors CultLib's generated GLSL (658c09e). The Phacelle gradient bound is an empirical probe, not a proof. Headless harness compiles, renders and times it; nothing run on a GPU. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>