Steampunk Skeleton Cowboy: GPT-6 Astra × V2Fun

Overview

Ember Drifter is a full-body skeleton gunslinger with a broad cowboy hat, brass goggles, a dark red scarf, worn brown clothing, and oversized orange mechanical armor. The case explores how GPT-6 Astra and V2Fun translate a detailed character reference into a complete static 3D assembly.

The supplied process sheet identifies three assembly groups: the skeleton cowboy, a multi-barrel weapon, and a travel case. V2Fun generated the character, while Three.js supplied the two props and a local eye repair. This division illustrates the GPT-6 Astra and V2Fun model collaboration workflow through a character with both irregular costume surfaces and regular mechanical accessories.

Tools Used

• GPT-6 Astra: visual interpretation, component planning, and agent-side assembly and adjustment, as described in the case notes.
• V2Fun: generated reference imagery and the complex skeleton cowboy component.
• Three.js: procedural weapon and travel case construction, plus the documented local amber-eye repair.
• GLB: the supplied final asset format.

Step 1 — Establish the Character References

The input sheet presents the original design, an AI-inferred front/side/back turnaround, and an isolated character reference. The original establishes the orange armor, layered leather equipment, long coat, oversized gun, and skull-marked case.

The turnaround adds proposed views of unseen structure. These are inferred design interpretations rather than independently observed surfaces. The isolated reference removes the gun and case so the character can be generated separately. The single-image and multi-view input guide provides related guidance on framing complete subjects and reducing overlap between parts.

Step 2 — Generate the Character Component

V2Fun handles the cowboy as one main character component, including the skull, hat, scarf, coat, straps, armor, and boots. The exploded view shows a pale skull beneath the hat brim, crossed chest straps, a large belt buckle, and an especially prominent orange shoulder and mechanical arm on the viewer's right.

The process annotation records a local Three.js amber-eye repair. It does not establish a broader facial reconstruction pass or quantify the change. The relevant generation stage is described further on the V2Fun AI 3D model generator page.

Step 3 — Construct the Two Props

The weapon is documented as a procedural assembly with an orange shroud, six muzzle bores, a grip, and auxiliary pipes. Its visible silver-gray barrel section and external tubing carry the reference's mechanical theme into a simpler cylindrical construction.

The travel case is also procedural. It includes slats, straps, a handle, a white skull-and-crossbones emblem, and a small blue tag. The exploded view displays both props apart from the cowboy, making their separate construction clear.

Step 4 — Assemble and Present the Result

The final image places the weapon at the viewer-left hand, pointing diagonally downward, and positions the case beneath the armored hand on the viewer's right. The orange and brown palette connects the character to both accessories.

The final presentation identifies the image as a render of the delivered GLB after reloading, with no AI redraw. This documents a static assembly presentation; it does not demonstrate animation or an engine import test.

Workflow

Original reference → AI-inferred turnaround and isolated character reference → V2Fun character generation → Three.js props and local eye repair → Agent-side assembly → GLB export → Reloaded assembly render.

Prompt

English translation of the design brief:

A full-body, standing steampunk mechanical skeleton cowboy with an ivory-white skull face and orange-yellow glowing eye sockets. He wears a wide-brimmed brown cowboy hat with brass goggles mounted on its band, a dark red scarf, and a worn brown long coat. Crossed leather ammunition belts cover his chest; a large metal buckle and multiple tool pouches sit at his waist.

The shoulder and entire arm on the right side of the image have exaggerated orange mechanical armor with circular bearings, pistons, pipes, rivets, and small upright exhaust stacks. The mechanical hand carries an orange-brown toolbox bearing a white skull-and-crossbones symbol. The other hand holds a large science-fiction multi-barrel gun angled down toward the left, with silver-gray barrels, an orange casing, and external tubing.

Combine leather leg straps with mechanical knee guards and heavy orange-black metal boots. Use thick black outlines, layered cel shading, and a comic-style game character concept aesthetic. The main colors are orange, brown, black, and silver-gray, with scratched edges and chipped paint. Keep the forms exaggerated and the components clearly defined.

Show the complete character from a slightly low front three-quarter viewpoint against an off-white background, with a soft shadow extending left from the feet. One character, no explanatory text or watermark, square composition.

Result

The delivered asset is skeleton-cowboy.glb, with a supplied size of 51,554,752 bytes, approximately 51.55 MB, and MIME type model/gltf-binary.

The final render retains the defining hat-and-skull silhouette, red scarf, layered brown costume, orange mechanical arm, downward-pointing weapon, and skull-marked case. The props visibly reinterpret the reference through procedural geometry. Unseen surfaces remain inferred, and the case establishes a static display model rather than a measured fidelity benchmark.

For context on the delivery format, see the AI 3D export guide for FBX, GLB, OBJ, and USDZ.