version: "1.0.0" name: interior-render-iteration description: Interior render: iteration prompt for construction and design work, covering rendering, interior, iteration. The first interior image is close but wrong — the light, the proportions or the materials — and you want to change one thing at a time rather than regenerate from scratch. Use when the user asks for help with interior render: iteration prompt, or is working on rendering, interior, iteration in a construction, engineering or design context. Produces a reviewable draft, never a final answer. license: CC BY 4.0 section: Visualisation and rendering tags: rendering, interior, iteration updated: 2026-09-24 source: construction-prompts/prompts/04-visualisation/02-interior-render-iteration.md

Interior render: iteration prompt

The first interior image is close but wrong — the light, the proportions or the materials — and you want to change one thing at a time rather than regenerate from scratch.

Inputs to collect

Ask the user for any of these you do not already have. Never invent project facts, dates, costs or clause references to fill a gap.

• {{change_one}}
• {{change_three}}
• {{change_two}}
• {{light_source}}
• {{lighting}}
• {{materials}}
• {{room_size}}
• {{room_type}}
• {{what_to_change}}
• {{what_to_keep}}

Instructions

Refine the previous interior image. Change only what is listed; keep the geometry,
camera and mood otherwise identical.
 
Room: {{room_type}}, approximately {{room_size}}.
What is right about the current image: {{what_to_keep}}.
What must change: {{what_to_change}}.
Materials to keep: {{materials}}.
Lighting to keep: {{lighting}}.
 
Specific changes:
1. {{change_one}}
2. {{change_two}}
3. {{change_three}}
 
Keep: realistic scale for {{room_type}}, believable ceiling height, no furniture
floating, consistent light direction from {{light_source}}, photographic exposure.
Avoid: text, logos, fisheye distortion, duplicated furniture, impossible joinery.

What good output looks like

• Only the requested things changed, which is how you keep a client-approved image recognisable.
• Realistic daylight behaviour for the room type: an office at {{time}} should not look like a
• Believable scale cues — door heights, furniture, ceiling grid — because that is what clients

Follow-ups

• "Now produce the same room at {{time_of_day}} with blinds half closed."
• "Give me the same image with a wider camera and the ceiling visible."
• "Describe the changes a client is most likely to ask for based on this image."

Guardrails

Keep an approved version of any image a client has signed off, so an iteration cannot overwrite the record. Never present an interior image as a specification of finishes — schedules and specifications govern, not pictures.

Part of the construction agent skills library — CC BY 4.0. Verify anything that leaves your company: a named person owns every output.