Rocket in stages
A low-poly three-stage rocket, 47 m tall, standing on four orange fins: a white first stage with five engine bells and folding grid fins, an orange second stage, and a white upper stage with a clamshell fairing around a satellite. A 10 s loop pulls the stages apart, opens the fairing, then puts the rocket back together.

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
- 3,724
- Vertices
- 11,172
- Meshes · materials
- 29 · 29
- Size (W × H × D)
- 7.9 m × 47 m × 7.9 m
- File
- GLB · 430 KB
- Animation
- scene-motion · 10.0s
- Style
- Low-poly
- Collection
- Rocket Launch Site
Palette · named materials
- white — first-stage tank, fairing (body)#f4f1ec
- white light — upper-stage tank (upper)#f9f8f6
- white dark — first-stage engine skirt band (trim)#d7cebc
- launch orange — fins, second stage, first-stage band, fairing nose (accent)#ed7e1d
- launch orange dark — second-stage aft skirt band (band)#af590e
- steel — engine bells, grid fins and brackets, satellite dish (metal)#7e8c9a
- soot black — interstages, heat shield, payload adapter, upper-stage band (line)#1b1b22
- warm white — satellite bus (payload)#f2ede2
- sky blue — satellite solar panels (panel)#2e67b8
Use it
import { GLTFLoader } from "three/addons/loaders/GLTFLoader.js";
const gltf = await new GLTFLoader().loadAsync(
"https://assets.stoicsoft.com/1designtool/3d/models/rocket-launch-site-rocket-in-stages/68555f2560/model.glb"
);
scene.add(gltf.scene); // metres, +Y up, front faces +Z
const mixer = new THREE.AnimationMixer(gltf.scene);
gltf.animations.forEach((clip) => mixer.clipAction(clip).play());
// in your loop: mixer.update(delta)How it was made
The brief given to 1DesignTool's “3D object” template:
Rocket in stages for the Rocket Launch Site kit. Design it as one clear asset at believable real-world scale for that setting (state the size in metres in meta.notes), with its main parts modelled and named, readable at thumbnail size and from every orbit angle. It moves: author a seamless baked loop (2–12 s) with every pivot exactly at its hinge, axle or swivel, and keep the base still. This is one part of the Rocket Launch Site kit (Low-poly style, flat-lowpoly direction): Countdown at the coast. Use ONLY the kit palette, by name: white #f4f1ec, launch orange #ed7e1d, steel #7e8c9a, sky blue #2e67b8, white dark #d7cebc, launch orange dark #af590e, white light #f9f8f6, launch orange light #eea668, soot black #1b1b22, warm white #f2ede2, mid grey #7d828c, dark wood #3d2a1c. Every material's `name` must be exactly the palette colour it uses — the GLB carries these names so the kit recolours as one; an unnamed material fails delivery. Kit knob: expose a param `rocketDesign` (0–1, default 0.5) for the kit's "Rocket design" setting wherever it makes sense on this part, and keep that id.
- Agent: Claude Code · Claude Opus 5.5 in 1DesignTool
- Generation: 6.97M tokens (95% cached) · ≈ $4.77 at API prices
- Direction: Low-poly · family abstract-kinetic
- three-check PASS · glb-lint PASS
Named parts · 19
- Rocket in stages
- First stage
- Fins
- Engine 1 (centre)
- Engine 2
- Engine 3
- Engine 4
- Engine 5
- Grid fin 1
- Grid fin 2
- Grid fin 3
- Grid fin 4
- Second stage
- Second-stage engine
- Upper stage
- Upper-stage engine
- Satellite payload
- Fairing half (left)
- Fairing half (right)
Note: Size at the defaults: 47.25 m tall to the fairing tip, with a 3.9 m tank diameter (4.0 m across the interstage collars). The fins span 7.9 m tip to tip. Their flat feet stand on y = 0, and the engine bells hang 0.4 m clear of the ground. The origin is the bottom centre on the rocket's axis, and the first fin faces +Z. The height is sized to the kit's service tower and launch pad at the same rocketDesign. The GLB has 3724 triangles in 29 meshes (one mesh per part and colour) and one 10 s seamless clip, 'scene-motion'. Normals are baked flat, so the geometry is non-indexed. The node transforms stored in the file are the stacked rest pose, so the model is correct even when the clip is not played. The loop: the rocket stands still for 0–2.2 s. Then the four grid fins hinge out at their root brackets. The five first-stage bells start a 4° circular gimbal about their throats. The second stage rises 4 m and the upper stage 8 m along the axis, which reveals the second-stage and upper-stage engines hidden in the interstages; those bells gimbal about their throats while the stages are apart. The fairing halves swing 40° open about their outer base edges to show the satellite. Then everything closes back, in reverse order, by 9.8 s. The first stage, its interstage and the fins never move. While the stages are apart, the animated bounds reach 55.2 m tall, and the open fairing reaches 6.9 m from the axis. Every material is named exactly after the kit palette colour it uses; 9 of the 12 kit colours appear (mid grey, dark wood and launch orange light are not used). The exporter writes one material per mesh, so names repeat: recolour by name. rocketDesign (the kit's 'Rocket design') scales the rocket to the tower and pad it belongs with: 34 m and 3.0 m diameter at 0, 61 m and 4.8 m diameter at 1. finCount sets 3 to 6 fins. stageGap and fairingOpen set how far the loop separates the stages and opens the fairing. Params are baked into the GLB at their defaults and change the model only when the scene is rebuilt in the viewer. three-check also passed with every param at its minimum (3902 tris) and at its maximum (3950 tris). glb-lint: 0 errors and 6 heuristic warnings, all expected. The material-count and duplicate-material warnings come from one material per mesh. The unindexed warning is the flat shading. The sibling-overlap warning is the paint bands and collars set into the tanks on purpose. The 'detached' warning is the grid fins on their hinge brackets and the upper engines, which sit inside the interstages at rest. The scale warning compares 47 m against the direction's 1 m reference. The overall verdict reads UNVERIFIED only because no requirements contract was supplied. plan-check rejects only the hyphenated library part ids, because its id regex allows no hyphen. The same plan with the slug de-hyphenated passes, and three-check finds all 19 planned ids in the scene and after GLB reload. The viewer's ground disc and lights are staging only and are not in the GLB. Fix rounds: (1) replaced the oversized stage disc with a pad-sized one, and framed every view on the full motion envelope so the separated stack is never cropped; (2) moved the fins onto the axes and the engines onto the diagonals so no fin is edge-on to the hero camera, and widened the hero and top framing; (3) lengthened the loop from 8 s to 10 s with a 2.2 s still hold, so the GLB's stored node pose is the rest pose rather than a mid-separation frame.
About the Rocket in stages 3D model
Rocket in stages is a free animated low-poly 3D model from the Rocket Launch Site set. It measures 7.9 m × 47 m × 7.9 m (W × H × D) at real-world scale and is built from 3,724 triangles across 29 meshes, with 19 named parts and a baked animation (10.0 s). Download the 430 KB GLB and drop it into three.js, React Three Fiber, Godot or Blender — free for commercial use, no attribution required.
- Is the Rocket in stages 3D model free for commercial use?
- Yes. It is free under the 1DesignTool 3D library license: use it in personal and commercial work — games, apps, websites, renders, ads and client projects — and modify it as you like, with no credit required. What you can't do is re-sell or re-distribute the file on its own or inside a model pack.
- What file format is it, and how big is it?
- A single binary glTF 2.0 file (.glb), 430 KB: 3,724 triangles, 11,172 vertices and 29 materials, modelled in metres at 7.9 m × 47 m × 7.9 m.
- Is Rocket in stages animated?
- Yes — the GLB carries a baked animation (10.0 s), ready to play with any glTF animation mixer.
- Which engines and tools can open it?
- Anything that reads glTF 2.0. three.js, React Three Fiber, Babylon.js, Godot 4 and Blender import the GLB directly; Unity and Unreal Engine load it through their glTF importers. The snippets above show the exact code for three.js, React Three Fiber, Godot and Blender.
- How was the Rocket in stages 3D model made?
- Claude Code (Claude Opus 5.5) generated it inside 1DesignTool's 3D template from a written brief, then the design kit's checks verified the geometry and the GLB before it was published. You can make your own the same way with 1DesignTool.
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