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fix(model): load lafabrik glb

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Tom Boullay
2026-05-31 22:14:13 +02:00
parent e212e4bbd5
commit d3b4a55e71
4 changed files with 12 additions and 12 deletions
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docs/technical/map-lod.md
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@@ -84,11 +84,11 @@ This matters for `lafabrik`: adding `public/models/lafabrik-LOD/` is not enough
To add LOD support for a model:
1. Add the light model in `public/models/<name>-LOD/model.gltf`.
2. Keep the regular model in `public/models/<name>/model.gltf`.
2. Keep the regular model in `public/models/<name>/model.glb` or `public/models/<name>/model.gltf`.
3. Add the mapping in `src/data/world/mapLodConfig.ts`.
4. If the model uses a dedicated component, call `useMapLodModelPath()` in that component.
5. Preload both paths when the component is dedicated and uses `useGLTF.preload()`.
6. Verify the GLTF references: buffers, textures, opacity maps, and relative paths.
6. Verify the GLTF/GLB references: buffers, textures, opacity maps, and relative paths.
## Current LOD Models
docs/technical/map-performance.md
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@@ -14,12 +14,12 @@ This document tracks the current map-rendering performance pass.
The first performance bottleneck was draw calls. Some assets were exported as many small GLTF primitives even when they used only a few materials.
| Model | Instances | Meshes / primitives | Notes |
| ---------------- | --------: | ------------------: | ---------------------------------------------------------------- |
| `generateur` | 3 | 3152 | Worst draw-call offender. Needs asset-side mesh merging. |
| `lafabrik` | 4 | 56 | Moderate draw calls, heavy 2048 texture set. |
| `ecole` | 1 | 107 | One material but many primitives; should be merged. |
| `fermeverticale` | 3 | 1 | Geometry is fine; textures are large for the visible complexity. |
| Model | Instances | Meshes / primitives | Notes |
| ---------------- | --------: | ------------------: | ------------------------------------------------------------------------------------ |
| `generateur` | 3 | 3152 | Worst draw-call offender. Needs asset-side mesh merging. |
| `lafabrik` | 4 | 474 | High primitive count; current HD GLB has embedded geometry and no external textures. |
| `ecole` | 1 | 107 | One material but many primitives; should be merged. |
| `fermeverticale` | 3 | 1 | Geometry is fine; textures are large for the visible complexity. |
`generateur` was especially expensive because three visible instances could multiply thousands of primitives into thousands of draw calls. Instancing reduces repeated instance cost, but the source asset still needs a cleaner export.
@@ -34,7 +34,7 @@ Estimated source primitive count versus runtime merged groups:
| `generateur` | 3152 | 8 |
| `ecole` | 107 | 2 |
| `eolienne` | 118 | 8 |
| `lafabrik` | 56 | 14 |
| `lafabrik` | 474 | ~77 |
This is a code-side safety net, not a replacement for clean asset exports. Clean GLB exports with merged meshes and fewer textures remain the preferred long-term path.
@@ -255,7 +255,7 @@ Design/export should prioritize:
1. Produce lower-poly `buisson`, `arbre`, `sapin`, and crop assets.
2. Add LOD or billboard variants for far vegetation.
3. Merge `generateur` meshes from 3152 primitives to a small number of material groups.
4. Reduce `lafabrik` texture count and downscale flat/low-detail maps.
4. Keep `lafabrik` exports texture-light, and merge repeated material primitives where possible.
5. Merge `ecole` primitives because it uses a single material.
6. Prefer runtime `.glb` or compressed runtime textures when the pipeline supports it.