creatures: cite the Bifrost creature-props contract #3

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nibu wants to merge 0 commits from nibu/ratatoskr-background-scene into ratatoskr/estate-navigator AGit

pull from: nibu/ratatoskr-background-scene

merge into: GameCult:ratatoskr/estate-navigator

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Conversation 1 Commits - Files changed - +3163

nibu commented 2026-11-02 07:22:59 +00:00

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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

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>

nibu added 5 commits 2026-11-02 07:22:59 +00:00

Background scene: two-pass WebGL2 terrain and world tree with login pull-back ... e377d9f722

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>

Background scene: phacelleGradBound 6.3 -> 7.0 from Libby's measured sup ... b2d6d32cc4

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>

Background scene: sky costs no noise; one sun term ... 7a498584e6

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: lint and type clean, integration contract ... 093230a2c1

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>

creatures: cite the Bifrost creature-props contract ... 8c7113bcaf

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>

nibu commented 2026-11-02 07:23:36 +00:00

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Opened by mistake (wrong AGit topic). The commit is on PR #1.

Opened by mistake (wrong AGit topic). The commit is on PR #1.

nibu closed this pull request 2026-11-02 07:23:36 +00:00

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