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One prompt, four agents and a critic: Gemini 4 Argon builds a Japanese temple in Blender

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Breakdown2 min readLast edited October 14, 2026Free today

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George Kenwright of Google DeepMind shows Gemini 4 Argon in Antigravity building a whole Japanese temple complex in Blender: a five-storey pagoda, a vermilion drum bridge, a lotus pond and a gilded altar hall. dotey (Baoyu) shared the subtitled demo with a Chinese summary. It's billed as one prompt, but that prompt carries a whole pipeline: rules, blueprints, references, a division of labour and a critic.

How it was made

  1. 01Skill docbuilding and look rules
  2. 02Gemini 4 Argonblueprints first
  3. 03Nano Banana4-angle reference sheet
  4. 044 subagentsone zone each
  5. 05Criticrender, compare, redo
  1. The prompt names a skill document, architectural_environment_production, and asks for a temple complex with a pagoda in Blender 5.2.
  2. Blueprints come first: CAD drawings (IfcOpenShell, ezdxf) compiled 1:1 into Blender.
  3. Nano Banana turns the blueprints into a 2×2 sheet of photoreal views from 4 angles, to lock proportions and materials.
  4. Four parallel subagents, one per tile of the reference sheet, split the site: pagoda and roofs, joinery and cloisters, gate and gardens, the golden-hall interior. A master orchestrator doubles as an adversarial critic, checks Cycles renders against the sheet zone by zone and sends work back. On screen, every specialist is at pass 32.
  5. The next day came extra requests: animations, plus a procedurally generated temple bell and ambience.

The details that matter

  • Rules live in the skill doc. The SKILL.md on screen fights the "too perfect CG" look: gobos for dappled shade, noise on light intensity, stacked micro-roughness, edge wear, a 35 mm camera with shallow depth of field.
  • The reference is a target, not a tracing. The render adds a drum bridge and lotus pond the reference lacks, yet the five roofs and the hall's form match.
Nano Banana reference on the left, the same angle rendered in Blender on the right: the roofs match, the garden grew.
Nano Banana reference on the left, the same angle rendered in Blender on the right: the roofs match, the garden grew.Still from @dotey’s original video

Where it breaks

  • With no reference image the critic has nothing to measure against, and the loop never converges.
  • Four agents editing one .blend overwrite each other. Give each its own collection.
Inside the golden hall: a Buddha triad, gilt lanterns and tatami, all the interior specialist's work.
Inside the golden hall: a Buddha triad, gilt lanterns and tatami, all the interior specialist's work.Still from @dotey’s original video

Try it yourself

Write your rules down first, then adapt the Blender MCP build-rules prompt. Split roles as in multi-agent game dev and run the build with Blender MCP scene building[1][2].

References

  1. dotey's post with the subtitled demo and a Chinese summary x.com/dotey/status/2110129154272207315
  2. Google's Gemini 4 Argon launch post x.com/Google/status/2110041297360699856

Tags:#3D#Blender#Gemini#AI agents#Nano Banana#Photorealism

Written by the OpenDrama editors from a public post. Stills are quoted from the original video for commentary; tools, settings and steps are our own reconstruction. All rights in the original work stay with its creator — ask us and we take a still down.

Skills and prompts in this breakdown

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