Tom Boullay
c09818aa67
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79 lines
2.8 KiB
Markdown
79 lines
2.8 KiB
Markdown
# Animation & 3D Components
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This document describes the 3D components that are currently used in the runtime.
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## Runtime Components
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| Domain | Component | Role |
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| ----------- | -------------------- | --------------------------------------------------------------------- |
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| Interaction | `InteractableObject` | Focus detection through distance and raycasting |
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| Interaction | `TriggerObject` | Press-to-trigger interactions, optional sound, optional spawned model |
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| Interaction | `GrabbableObject` | Physics grab and hand-tracking grab behavior |
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| Model | `AnimatedModel` | GLTF animation playback with fade, speed, and context controls |
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| Model | `ExplodableModel` | Split/reassemble a GLTF model into separated parts |
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| Model | `SimpleModel` | Lightweight static GLTF render helper |
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| Gameplay | `RepairCaseModel` | Repair case lid animation, proximity float, and wobble |
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## Continuous Animation
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Use `useFrame` for per-frame 3D behavior. Current examples:
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- `GrabbableObject` updates held object velocity every frame.
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- `ExplodableModel` updates split part positions every frame.
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- `RepairCaseModel` updates proximity float and rotation wobble every frame.
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- `SkyModel` follows the camera position every frame.
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## Timeline Animation
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Use GSAP only for discrete timeline-style transitions. Current example:
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- `RepairCaseModel` animates the case lid between open and closed rotations.
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## Animated Models
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`src/components/three/models/AnimatedModel.tsx` wraps drei `useAnimations()` around a loaded GLTF scene.
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It supports:
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- default animation playback
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- optional autoplay
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- fade duration
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- speed multiplier
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- `onLoaded`
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- `onAnimationEnd`
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- context controls through `AnimatedModelContext`
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The debug physics scene currently uses it to preview:
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```txt
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public/models/electricienne_animated/model.gltf
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```
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with the `Dance` animation.
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`src/hooks/animation/useCharacterAnimation.ts` is a hook-level alternative for components that need to own their group ref and animation controls directly.
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## GLTF Reuse
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Use `useClonedObject` when a GLTF scene is reused by a component instance. It memoizes `scene.clone(true)` and keeps clone creation out of render churn.
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## File Structure
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```txt
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src/components/three/
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├── gameplay/
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│ ├── RepairCaseModel.tsx
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│ ├── RepairGame.tsx
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│ └── RepairRepairingStep.tsx
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├── interaction/
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│ ├── GrabbableObject.tsx
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│ ├── InteractableObject.tsx
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│ └── TriggerObject.tsx
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├── models/
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│ ├── AnimatedModel.tsx
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│ ├── ExplodableModel.tsx
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│ └── SimpleModel.tsx
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└── world/
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└── SkyModel.tsx
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```
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