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add .agents/design/ — blog voice + rules for agents

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Ozan Bozkurt
2026-06-15 22:55:35 +01:00
parent 6524ac3597
commit 3226fe28a6
3 changed files with 36 additions and 4 deletions
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posts/gpu-skinned-herds.md
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@@ -125,7 +125,7 @@ In [Ariki](https://www.arikigame.com), the sim tracks animal migration across a
The sim owns all behavior — 30 data-driven animals with per-animal senses, diet, combat stats, and FSM states (graze, drink, sleep, hunt, flee, scavenge, die). The client just renders. This is the same code in single-player and multiplayer — the sim is the host.
Bird flocks use the same system. `BirdFlock.cs` runs boid flocking on top of `skinned_herd`, sharing the palette with synchronized phases (airborne flapping in unison is intentional). 25 bird species migrated from the Low Poly Bird Ultimate Pack, each a single draw call.
Bird flocks use the same system. `BirdFlock.cs` runs boid flocking on top of `skinned_herd`, sharing the palette with synchronized phases (airborne flapping in unison is intentional). 25 bird species, each a single draw call.
Per-instance custom data means a walking Boar, a running Boar, an idle Boar, and an attacking Boar all share the same baked palette — they just point at different rows. The renderer groups by type, not by state. One palette, one draw call, any number of states.
@@ -149,7 +149,7 @@ No C# wrapper is generated — instantiate from GDScript via `ClassDB.instantiat
## The production pipeline
The `migrate_animals.py` tool converts polyperfect FBX packs to game-ready GLBs — imports, cleans hierarchy, rebuilds named NLA clips from frame ranges, strips duplicate meshes, bakes into the flat `assets/models/glbs/` directory. Each animal gets a catalog entry in `animals_catalog.json` with clip metadata, default state mapping, and an `animSpeedRef` for foot-sync.
The `migrate_animals.py` tool converts source FBX files to game-ready GLBs — imports, cleans hierarchy, rebuilds named NLA clips from frame ranges, strips duplicate meshes, bakes into the flat `assets/models/glbs/` directory. Each animal gets a catalog entry in `animals_catalog.json` with clip metadata, default state mapping, and an `animSpeedRef` for foot-sync.
At runtime, `AnimalHerdRenderer` spawns one `skinned_herd` per animal type. The herd bakes the palette from the catalog GLB's clips. `AnimalAnimationLogic` maps sim FSM states to clip keywords (attack → "attack"/"bite", flee → "run"/"gallop", wander → "walk"). The renderer lerps positions between sim ticks for smooth motion and writes per-instance custom data each frame. Zero per-frame CPU on the animation path.