---
title: "Textures — Visual Assets"
description: "PBR surface map asset catalog for 3D model and building-exterior surfaces"
type: design
status: active
---

# Textures — Visual Assets

PBR surface maps (BaseColor / Normal / Roughness) applied to 3D model and
building-exterior surfaces. The only flattened 2D content besides flat
artwork (D-244) — a texture has no "direction," only map type.

## Generation Approach

- **Building-exterior surfaces:** named by the ratified ObjectTag vocabulary
  (D-235 amendment, T-995, `wiki/economics/object_tag_vocabulary.toml`) — see
  [conventions.md](conventions.md) §3 for the naming convention and the
  fallback-hierarchy note (every specific tag degrades to a `generic_*`
  parent until its specific texture ships).
- **Model surfaces:** Trellis bakes a texture atlas directly onto the mesh
  during `/glb-gen` (no separate texture-authoring step for most
  furniture/props) — see [models.md](models.md). This file tracks
  **standalone** PBR maps: building-exterior materials and any surface asset
  authored or generated independent of a specific model.

## Assets

| ID | Filename | Status | Map Type | ObjectTag | Notes | Sprint/Ticket |
|----|----------|--------|----------|-----------|-------|---------------|

No textures have entered production yet — this table is intentionally empty
at initial creation (T-1050). Per D-235, the texture library itself is
Phase 5+/post-launch work (behind the fallback chain); this file exists now
so the catalog structure is in place ahead of that work landing.

## Cross-References

- [conventions.md](conventions.md) — D-235-keyed texture naming
- [models.md](models.md) — model-baked textures (Trellis atlas bakes)
- [D-235](../../../governance/decisions/architecture.md#d-235-building-exterior-visual-grammar-and-material-vocabulary) — ObjectTag vocabulary + fallback hierarchy
- `wiki/economics/object_tag_vocabulary.toml` — the ratified tag registry