interior-scene

Purpose

Translate an interior architectural visualization intent (room or interior space planned for catalog, brand, or showcase) into a complete, structured room plan with an assumptions register. Distinct from environment-shot (outdoor/wide places; an establishing shot of an interior room belongs HERE when furniture and surfaces dominate), product-hero-scene-planner (single manufactured product), and character-portrait (single subject).

Quick start

• lock style early and pin room type + plausible room dimensions (never invent dimensions; record any defaults in the assumptions register)
• pin architecture basics (walls, floor, ceiling, windows, doors)
• pin furniture + props + material palette
• pin lighting (natural + artificial mix) + mood + time of day
• pin camera angle + lens
• emit a structured plan with an assumptions register + handoff to asset-discovery, mobile-glb-budget, asset-style-check, and quality checkers

When to use

• intent is an interior room, space, or venue where furniture and surfaces dominate (including interior establishing shots)
• architectural visualization, catalog, brand showcase, hospitality, or residential room planning
• before any modeling, furniture sourcing, or rendering

When not to use

• outdoor establishing → use ../environment-shot/SKILL.md (use environment-shot)
• single hero product → use ../product-hero-scene-planner/SKILL.md (use product-hero-scene-planner)
• character portrait → use ../character-portrait/SKILL.md (use character-portrait)

Trigger phrases

• "interior of"
• "living room scene"
• "office showcase"
• "hotel lobby"
• "kitchen showroom"

Prerequisites / readiness

• brief from intent-to-3d-brief-writer
• room type + style known
• aspect / use case known

Input schema

Required inputs

Optional inputs

Assumptions to confirm

• Plausible room dimensions explicitly stated or flagged for confirmation (never silently invented).
• Style is locked early and consistent across architecture, furniture, and props (validated via asset-style-check).
• Scene scope is realizable within target asset/performance constraints (budget questions routed to mobile-glb-budget).
• Camera position, lens, and target are locked before modeling.

Output schema

Primary output

A complete interior room plan containing:

• Room (type, plausible dimensions, locked style)
• Architecture (walls, floor, ceiling, windows, doors)
• Furniture + props
• Material palette (key surfaces + finishes)
• Lighting (natural light via windows + artificial fixtures + practical lamps)
• Camera (position, lens, target)
• Mood + time of day
• Assumptions register (all unconfirmed inputs and plausible dimension assumptions)

Secondary output

• asset rows flagged for asset-discovery
• style consistency notes for asset-style-check
• budget questions flagged for mobile-glb-budget
• validation handoff list for composition-quality-checker, lighting-quality-checker, material-quality-checker, and scene-readiness

Evidence / caveat output

Runtime status: Not Run | Attempted | Produced | Verified | Failed
Artifact status: Not Produced | Produced | Verified | Failed
Evidence used: <links, paths, logs, or "none">
Limitations: <known gaps>

Required laws

• ../../laws/evidence-before-done.md
• ../../laws/non-blender-user-language.md
• ../../laws/no-arbitrary-python-interface.md
• ../../laws/official-runtime-only.md

Official runtime boundary

Planning-only skill — does not model, source furniture, render, or execute Blender. Runtime status stays Not Run and artifact status stays Not Produced (downgrade-only, never upgrade). Hand off asset sourcing to asset-discovery, budget questions to mobile-glb-budget, style checks to asset-style-check, and validation to composition-quality-checker, lighting-quality-checker, material-quality-checker, and scene-readiness.

Operating procedure

1. Read brief from intent-to-3d-brief-writer; lock style early and pin room type + plausible room dimensions (never invent dimensions; log any unconfirmed values in the assumptions register).
2. Pin architecture basics: walls, floor, ceiling, windows, and doors (see references/interior-architecture-rules.md).
3. Plan furniture layout + props (see references/furniture-layout-rules.md).
4. Pin material palette and key surfaces matching the locked style.
5. Plan lighting: natural light (windows + sun direction) + artificial light (overhead fixtures + practical lamps).
6. Pin camera position, lens, and target (see references/interior-camera-rules.md).
7. Pin mood + time of day.
8. Compile the assumptions register and list asset rows for asset-discovery.
9. Emit handoffs to asset-discovery, mobile-glb-budget, asset-style-check, composition-quality-checker, lighting-quality-checker, material-quality-checker, and scene-readiness.

Decision tree

Room dimensions missing or unrealistic for use case (e.g. 100m² home office)?
  → Do not invent dimensions; warn, propose plausible defaults in the assumptions register, and verify intent
Style unclear in brief?
  → Return to intent-to-3d-brief-writer before planning furniture or materials
Style + furniture mismatch (e.g. modern brief + ornate Victorian sofa)?
  → Fail; lock one style early and route to asset-style-check
Performance or polycount budget in question?
  → Route budget questions to mobile-glb-budget
Time of day mid-day but only artificial lighting planned?
  → Warn; natural window light should be accounted for alongside artificial fixtures
Wide-angle 14mm in a small room?
  → Warn; distortion likely; propose 24mm + camera repositioning

Playbooks

Playbook A: Modern living room hero (16:9 catalog)

24–35mm wide; camera in corner; afternoon natural light through window; sofa + coffee table + rug as primary furniture; minimal palette; soft shadows.

Playbook B: Hospitality lobby (1:1 social)

35mm; camera centered toward focal art / reception; warm artificial lighting + minimal natural; rich materials.

Playbook C: Office showroom (wide 2.39:1)

24mm; camera elevated; mix natural + artificial; clean material palette; depth layered (foreground furniture + midground workstations + background views).

Mode handling

Text-only mode

Emit the structured room plan, assumptions register, and handoff list. Runtime stays Not Run; artifacts stay Not Produced.

Runtime-ready mode

Emit the structured room plan, assumptions register, and downstream handoffs. Do not execute Blender; runtime stays Not Run and artifacts stay Not Produced.

Blocked runtime mode

Emit the structured room plan and assumptions register; flag what cannot be confirmed downstream. Runtime stays Not Run; artifacts stay Not Produced.

Validation checklist

• Style locked early
• Room type + plausible dimensions pinned (never invented)
• Assumptions register populated
• Architecture basics (walls, floor, ceiling, windows, doors) pinned
• Furniture + props listed
• Material palette + key surfaces listed
• Lighting plan (natural + artificial) explicit
• Camera position + lens + target chosen
• Mood + time of day pinned
• Asset rows flagged for asset-discovery
• Handoffs named (mobile-glb-budget, asset-style-check, composition-quality-checker, lighting-quality-checker, material-quality-checker, scene-readiness)
• Runtime status locked to Not Run and Artifact status locked to Not Produced

Pass / Warn / Fail rubric

Failure handling

• Unclear brief or style → hand off to intent-to-3d-brief-writer.
• Style mismatch across assets → hand off to asset-style-check.
• Unknown asset or performance budget → hand off to mobile-glb-budget.
• Composition, lighting, material, or overall scene validation issues → hand off to composition-quality-checker, lighting-quality-checker, material-quality-checker, and scene-readiness.

Troubleshooting

Best practices

• Plan natural + artificial lighting together; they form a system.
• Always provide a camera in corner (not center) for room scenes — center loses depth.
• Lock palette early (3–5 colors max).
• Treat windows as light sources, not decorations.

Good examples

• "Room: modern minimalist living room, 4×6m, ceiling 2.7m, style locked to warm Scandinavian modern. Architecture: light oak floor, matte white walls, floor-to-ceiling window on south wall, fireplace center back, flush wood door on east wall. Furniture + props: 3-seat neutral fabric sofa facing fireplace, low oak coffee table, woven area rug, single armchair right, ceramic vase on table. Material palette: light oak, matte white plaster, brushed concrete, warm grey linen. Lighting: afternoon natural sunlight through south window (dominant) + 2 recessed ceiling lights + 1 warm floor lamp by armchair. Camera: 35mm lens, north-east corner at eye-level, targeting sofa and fireplace framing. Mood + time of day: calm, warm afternoon (15:00). Assumptions register: 2.7m ceiling height assumed as plausible residential standard pending user confirmation; standard doorway width assumed. Runtime status: Not Run. Artifact status: Not Produced."

Bad examples

• "Living room scene." — no dims, style, lighting, or camera.

User-facing response template

Room: <type / plausible dims / locked style>
Architecture: <walls / floor / ceiling / windows / doors>
Furniture + props: <list>
Material palette: <3-5 dominant finishes>
Key surfaces: <floor / wall / ceiling / furniture fabric>
Lighting: Natural: <window + sun direction + intensity> | Artificial: <ceiling fixtures + practical lamps> | Ambient environment: <sky/exterior bounce if any>
Camera: <focal length> | <position> | <eye-line> | <target>
Mood + time of day: <line>
Assumptions register: <explicitly confirmed vs assumed plausible dimensions, style locks, and constraints>

Assets to discover (for asset-discovery): <list>
Runtime status: Not Run
Artifact status: Not Produced
Evidence used: <brief / inputs or "none">
Limitations: <gaps>
Next: asset-discovery | mobile-glb-budget | asset-style-check | composition-quality-checker | lighting-quality-checker | material-quality-checker | scene-readiness

Anti-patterns

• Center-of-room camera for hero shots (loses depth).
• Skipping window light when natural light is available.
• Mixing style eras without intent.
• Inventing room dimensions.

Cross-skill handoff

• [upstream_reference] Upstream brief → ../intent-to-3d-brief-writer/SKILL.md
• [upstream_reference] Outdoor / wide establishing shot redirect → ../environment-shot/SKILL.md
• [upstream_reference] Single hero product redirect → ../product-hero-scene-planner/SKILL.md
• [upstream_reference] Single character portrait redirect → ../character-portrait/SKILL.md
• [upstream_reference] Asset discovery → ../asset-discovery/SKILL.md
• [upstream_reference] Performance / polycount budget → ../mobile-glb-budget/SKILL.md
• [upstream_reference] Style consistency check → ../asset-style-check/SKILL.md
• [progression] Composition validation → ../composition-quality-checker/SKILL.md
• [progression] Lighting validation → ../lighting-quality-checker/SKILL.md
• [progression] Material validation → ../material-quality-checker/SKILL.md
• [progression] Scene quality validation → ../scene-readiness/SKILL.md

Non-goals

• Model the room or geometry.
• Source furniture or download assets (belongs to asset-discovery).
• Decide performance or polycount budgets (belongs to mobile-glb-budget).
• Audit cross-asset style consistency or validate composition, lighting, materials, or scene quality (belongs to asset-style-check, composition-quality-checker, lighting-quality-checker, material-quality-checker, and scene-readiness).
• Render or run Blender.

References

• references/interior-architecture-rules.md
• references/furniture-layout-rules.md
• references/interior-camera-rules.md
• ../../docs/skill-system.md