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Enforce one gravity field contract

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Meta Vens 2026-07-14 16:26:14 +01:00
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docs/aetheria-current-codebase-model.md
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@ -193,25 +193,21 @@ Remaining debt:
## Gravity Terrain
There are now shared daemon render queries for gravity influence brushes and
terrain sampling. `ZoneRenderer` uses
`AetheriaRuntimeDaemonRenderQueries.EvaluateGravityTerrainHeight` and
`QueryGravityTerrainBand` for rendering.
Daemon zone/body state owns gravity as positive depth magnitudes. The Ymir
adapter passes `GravityWellDepth` directly into positive-strength radial fields,
which attract. Shared render queries subtract those magnitudes into negative
terrain wells, and `AetheriaRuntimeGameDocuments.RenderSplatsViewport` performs
the same derived sign conversion for `gravity.height` splats.
The old `Assets/Scripts/Gravity.cs` still exists. It samples Unity
`GravityObject` materials and shader names directly. That path is a legacy
Unity-local gravity evaluator. It should not own gameplay gravity or canonical
terrain facts. The desirable shape is:
`AetheriaRuntimeDaemonRenderQueries` owns gravity influence brushes, terrain
sampling, and terrain bands. `ZoneRenderer` consumes those queries. The main
menu embeds the typed gravity, render-splat, and object viewport documents; its
old fallback body/object world has been deleted.
- daemon zone state defines body/orbit/gravity influence data;
- shared runtime query code answers viewport/intersection questions such as
"which influence brushes intersect this XZ area?";
- Unity receives only the brushes and terrain samples needed for the current
camera/minimap/render pass;
- Ymir receives physics-relevant fields from the same daemon state.
`Aetheria.State.Verify` already checks for shared gravity influence query
symbols and pushes `ZoneRenderer` away from mirrored Unity `Zone` math.
The old `Assets/Scripts/Gravity.cs` remains a legacy Unity-local visual
evaluator. It does not own gameplay gravity or canonical terrain facts. Unity
receives provider projections for the active camera/minimap/render pass, while
`AetheriaYmirWorldPhysics` receives physics fields from the same daemon state.
## Stats And Behaviors