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Green Sea Turtle

Adult green sea turtle (Chelonia mydas) at real scale in a gliding swim pose: front flippers swept back mid-stroke, rear flippers trailing, head slightly raised. 1.0 m heart-shaped carapace with 5 vertebral, 4 pairs of costal and a ring of marginal scutes, each with radiating olive/brown/amber streaks, grooved seams and growth lines; pale yellow plastron; blunt scaly head with paired prefrontal scales, serrated beak and heavy-lidded dark eyes; paddle flippers with a single claw and polygonal scale mosaic. All geometry and textures generated procedurally in code.

Original GLB6.4 MB Poster

Left rail: colours and the 4 knobs the agent wrote into this model — they rebuild the geometry and go into your download. Right rail: looks for the viewer. Drag to orbit, scroll to zoom.

Triangles: 109,508
Vertices: 56,936
Meshes · materials: 15 · 5
Size (W × H × D): 1.2 m × 30 cm × 1.2 m
File: GLB · 6.4 MB
Animation: Static
Style: Realistic
Collection: Animals

Palette · named materials

shell#6E5A32
shell-streak#B8862E
plastron#CCB373
skin#4A3220
skin-scale-border#CCAD66
eye#120C08
claw#4F3F2A

Use it

import { GLTFLoader } from "three/addons/loaders/GLTFLoader.js";

const gltf = await new GLTFLoader().loadAsync(
  "https://assets.stoicsoft.com/1designtool/3d/models/green-sea-turtle/53fb7077d5/model.glb"
);
scene.add(gltf.scene); // metres, +Y up, front faces +Z

How it was made

The brief given to 1DesignTool's “3D object” template:

A realistic adult green sea turtle (Chelonia mydas) in a gliding swim pose: front flippers swept back mid-stroke, rear flippers trailing, head slightly raised. Anatomy (real proportions): carapace about 1.0 m long, smooth heart-shaped shell with five central (vertebral) scutes, four pairs of costal scutes and the ring of marginal scutes, each scute with radiating olive, brown and amber streaks; pale yellow plastron underneath; a short blunt head with a single pair of prefrontal scales between the eyes, a serrated beak-like jaw, dark eyes with heavy lids; long paddle-shaped front flippers with one visible claw each and a mosaic of polygonal skin scales; short rear flippers. Surface: scute seams as real grooves, fine growth lines inside each scute, scaly skin on head and flippers with darker scale centres and pale borders, a slight wet sheen. No ground — the turtle floats with its lowest point at y = 0. Hard requirement: the exported GLB must contain more than 20,000 triangles — measure it before delivering; a lighter model is rejected.

Agent: Cursor Agent · Auto in 1DesignTool
Direction: Realistic · family characters
three-check PASS — 22 checks, 0 failed, 60 captures (1280x800 and 390x844); 16/16 part ids; GLB reload preserves parts; offline; deterministic · glb-lint 0 errors, 3 warnings (triangle count over the soft-clay direction budget, which this realistic override raises to 120k; intended nesting of eye in eyelid and body under plastron; claws flagged as detached because each is the only child of its flipper — their bases are embedded in the flipper's leading edge)

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Named parts · 16

Green sea turtle
Carapace
Plastron
Body
Head and neck
Tail
Left eye
Right eye
Left eyelids
Right eyelids
Front left flipper
Front right flipper
Rear left flipper
Rear right flipper
Front left claw
Front right claw

Note: Exported GLB: 109,508 triangles, 15 meshes, 5 materials (shell, plastron, skin, eye, claw), 6.7 MB.Textures are all JPEG and generated in code: shell and skin colour/normal 2048², plastron colour/normal 1024², roughness-metalness 1024² (shell, skin) and 512² (plastron).plan-check reports the part ids as invalid because its id pattern does not allow hyphens; the hyphenated ids green-sea-turtle.* were kept because the brief requires them. Every other plan-check rule passes.The design-kit craft bundle covers humanoids only and is declared not applicable; there are no hair cards or fur because the subject has none.Procedural approximation, not scan fidelity: scale layout on the head follows real green turtle plate arrangement only approximately, the jaw is sculpted closed with no mouth interior, and the body under the shell is simplified.Static model: no rig, no skin, no clips. The ground in the viewer is not exported; the lowest point sits at y = 0.