Twin Fan Aviator: GPT-6 Astra and V2Fun 3D Workflow

Overview

Twin Fan Aviator combines a mustached pilot with an open flight frame, two circular fans, and a central green equipment box. The design pairs brown leather clothing with brass-colored tubing and dark green machinery. Its main assembly challenge is the relationship between the seated character, two hand controls, seat, and foot support.

The case documents GPT-6 Astra planning the component structure and coordinating assembly, V2Fun generating the detailed character, and Three.js supplying the regular mechanical forms. This division follows the broader GPT-6 Astra and V2Fun hybrid workflow.

Tools Used

• GPT-6 Astra: subject analysis, component planning, and assembly calibration, as described in the case notes.
• V2Fun: generated modeling references and the textured aviator component, identified in the presentation.
• Three.js: procedural machinery, framework, seating, controls, and supports.
• GLB: the supplied final asset format.

Step 1 — Establish the Modeling References

The input sheet presents a complete concept, an isolated seated aviator, and a front, side, and rear study. The isolated character exposes the bent legs, forward-reaching arms, leather cap, goggles, and clothing without the surrounding machine.

The three-view study is explicitly labeled AI-inferred. It offers a proposed interpretation of hidden structure rather than independent observations of the object. The single-image and multi-view input guide provides related guidance on reference preparation and hidden-surface ambiguity.

Step 2 — Separate Character and Mechanical Groups

The exploded presentation organizes the build into six display groups: character, structural frame, paired fans, body and seat, mechanical equipment, and controls and supports. Its generic “running gear” category contains the circular fans in this case.

Only the character group is marked as V2Fun-generated 3D. The remaining groups are labeled Three.js procedural. These are presentation groups, not a verified mesh count. The exploded offsets reveal how the parts relate while retaining their displayed materials and proportions.

Step 3 — Generate the Aviator and Build the Machinery

V2Fun supplies the textured character, including the expressive face, mustache, jacket folds, trousers, boots, cap, and goggles. The isolated seated reference establishes the pose used in the assembly. See the image-to-3D model generator for the related generation capability.

The procedural portion supplies two ring-shaped fan housings with four broad blades each, central hubs, bent tubular supports, a dark seat cushion, a rectangular green equipment box, and paired hand controls. The mechanical forms are visibly simpler than the concept illustration while preserving its main silhouette and color relationships.

Step 4 — Assemble and Present the Result

The final view places the aviator ahead of the central box, with a fan on either side. His hands align with the upright controls, his body sits over the cushion, and his boots meet the front foot support. Brass-colored legs extend beneath the seat to dark feet.

The final sheet identifies its image as a render of the delivered GLB after reloading, with no AI redraw. It describes the asset as a static display model and notes that unseen surfaces are inferred.

Workflow

Concept and isolated character references → component planning → V2Fun character generation and Three.js mechanical construction → assembly calibration → GLB export → reloaded-model presentation.

Prompt

English translation of the design intent:

An adult aviator with a mustache, wearing a leather cap, goggles, and a vintage flight jacket. He leans slightly forward, gripping a separate control handle on each side. An open metal flight frame is fixed behind him, with two large circular fans arranged symmetrically. Each fan has four clearly defined straight blades. A rectangular battery box occupies the center, with two bent tubular support legs below. Leather shoulder straps connect the pilot to the frame. Use brass-colored framework and dark green housings, keeping both fan outlines fully visible.

Create one complete standalone asset containing one character and one machine, in a collectible-model style combining realistic proportions with mild exaggeration. Give the face expression and the clothing natural folds. Build the machinery from clear cylinders, discs, rectangular plates, straight rods, and a few regular curved tubes. Keep major part boundaries and connections readable, preserving contact between the character, seat, grips, and footrests.

Show a front three-quarter view from slightly above, centered with margins, against white. Use soft studio lighting, contact shadows, sharp focus, and refined PBR materials. Exclude text, numbers, logos, watermarks, complex scenery, and motion blur. Produce one finished reference image, not a collage or exploded view.

Result

The final presentation shows a complete static aviator-and-flight-frame assembly with readable twin fans, leather clothing, green machinery, and brass-colored supports.

Supplied file: 79-v2-final.glb.
File size: 40,338,392 bytes, approximately 40.34 MB.
MIME type: model/gltf-binary.

These file details come from the supplied metadata. The case demonstrates the visual assembly; it provides no measured timing or token-savings benchmark. For subsequent format decisions, consult the GLB and other 3D export formats guide.