# 16 — Mesh, Refinement, Texture and Export

## Status

```text
MESH_TEXTURE_EXPORT=PLANNED
```

## Authority

`docs/product/product_definition.md` and future scoped architecture contracts created before implementation.

## REQUIRED_PRODUCT_TARGET

```text
Dense
-> mesh
-> refinement
-> texturing
-> consolidation
-> export
```

Every stage publishes an explicit immutable generation with provenance.

Minimum target formats:

```text
point cloud: PLY
mesh: PLY, OBJ
textured mesh: OBJ + MTL + texture assets
portable viewer/export: GLB/GLTF
STL: optional
```

Export must preserve scale truth. Never label arbitrary monocular gauge units as millimetres or metres.

Exports must carry a manifest or sidecar sufficient to identify the source reconstruction, mesh/texture generation and scale status.

Consolidation selects an explicit user-facing result from immutable upstream generations. It does not delete those generations; selection remains explicit and reversible until deliberate cleanup.

Intermediate external-tool artifacts must not become authoritative until validated and atomically published.

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