Polyfork BrowseKitsCharactersSteerPricingBlog
←

Anchor Chain Run

free remixable
drag to orbit · scroll to zoom
Coral Reef low-poly 3D kit Part of Coral Reef 54 matching parts, one palette and scale
Part hierarchy (toggle visibility)

Use it

The fastest path in three.js: one import, zero loaders. The module returns a ready THREE.Group with named parts.

import { createAsset } from 'https://polyfork.dev/cdn/anchor-chain-run-d58343.mjs';
scene.add(createAsset());

Downloaded it instead? Import './anchor-chain-run-d58343.mjs' and add the importmap below. The zip ships a working index.html with both already in place.

Full working example (a complete copy-paste HTML page)
<!doctype html>
<script type="importmap">
{ "imports": { "three": "https://unpkg.com/[email protected]/build/three.module.js",
               "three/addons/": "https://unpkg.com/[email protected]/examples/jsm/" } }
</script>
<script type="module">
import * as THREE from 'three';
import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
import { createAsset } from 'https://polyfork.dev/cdn/anchor-chain-run-d58343.mjs';

const scene = new THREE.Scene();
scene.background = new THREE.Color(0xf3ecdc);
// Far plane at 5000: terrain blocks are 64 to 256m across and a 100m
// frustum slices them.
const camera = new THREE.PerspectiveCamera(45, innerWidth / innerHeight, 0.1, 5000);
camera.position.set(3, 2, 4);
const renderer = new THREE.WebGLRenderer({ antialias: true });
renderer.setSize(innerWidth, innerHeight);
document.body.style.margin = 0;
document.body.appendChild(renderer.domElement);
scene.add(new THREE.HemisphereLight(0xffffff, 0x998877, 1.2));
const sun = new THREE.DirectionalLight(0xfff2e0, 2);
sun.position.set(4, 7, 5);
scene.add(sun);

scene.add(createAsset());
new OrbitControls(camera, renderer.domElement);
renderer.setAnimationLoop(() => renderer.render(scene, camera));
</script>

The standard route: load the GLB with GLTFLoader. The same file works in any glTF pipeline (Babylon.js, <model-viewer>, custom engines).

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

new GLTFLoader().load('https://polyfork.dev/cdn/anchor-chain-run-d58343.glb', (gltf) => {
  scene.add(gltf.scene); // real-world scale in meters, origin on the ground
});

Flat-shaded vertex colors on a single material: no textures to wire up, one draw call.

R3F takes any Object3D through <primitive>, and these modules return a ready THREE.Group synchronously. No useGLTF, no loader, no <Suspense>.

import { useMemo } from 'react';
import { Canvas } from '@react-three/fiber';
import { createAsset } from './anchor-chain-run-d58343.mjs';

function AnchorChainRun(props) {
  const obj = useMemo(() => createAsset(props), [JSON.stringify(props)]);
  return <primitive object={obj} />;
}

<Canvas camera={{ position: [3, 2, 4] }}>
  <hemisphereLight args={[0xffffff, 0x998877, 1.2]} />
  <directionalLight position={[4, 7, 5]} intensity={2} />
  <AnchorChainRun colorway="wreck-steel" />
</Canvas>

Every knob is a prop. colorway="wreck-steel" above is one of this model's own parameters, so the component rebuilds when it changes, exactly like any other React component. More on using these in R3F.

Open this model in StackBlitz A running R3F project with this model in it, no install.

Self-animating models, and one draw call

A model that animates itself exposes userData.tick(seconds). Drive it from R3F's own loop:

useFrame((state) => obj.userData.tick?.(state.clock.elapsedTime));

To merge a static set into a single draw call, import mergeAssets from https://polyfork.dev/cdn/merge.mjs and pass the merged group to one <primitive>.

  1. Download the .glb from this page.
  2. Unity: drag the file into Assets (glTFast or UnityGLTF import it). Godot: drop it into the project, it imports natively. Blender: File → Import → glTF 2.0.
  3. Place it as-is: real-world scale in meters, origin at ground level.
  4. Materials arrive as vertex colors on one material: no texture files, nothing to relink.

Using Claude Code, Cursor or another coding agent? This site is built for them: agent-readable docs at /llms.txt and a JSON API at /api. Paste this prompt:

Add the "Anchor Chain Run" low-poly model from polyfork.dev
to my three.js scene. It is free and hotlinkable, nothing to download:

  ES module: https://polyfork.dev/cdn/anchor-chain-run-d58343.mjs
             (import { createAsset } - returns a THREE.Group, real-world scale)
  GLB:       https://polyfork.dev/cdn/anchor-chain-run-d58343.glb

Full metadata (size, palette, rigged parts): https://polyfork.dev/api/assets/anchor-chain-run-d58343
Site docs for agents: https://polyfork.dev/llms.txt

Every asset in this catalog shares one identical vertex-colored material, with no textures at all. That means whole scenes collapse into a single draw call: the same result Synty-style packs get from a texture atlas, without the atlas.

import { mergeAssets } from 'https://polyfork.dev/cdn/merge.mjs';

// position your assets first, then:
const { merged, dynamic } = mergeAssets([
  terrain, tree, rock,
  asset,
]);
scene.add(merged);                  // ONE draw call, static
dynamic.forEach(d => scene.add(d)); // rigged parts, still movable

Placing many copies of one model? Use THREE.InstancedMesh instead: one draw call and even less memory. The landing page's forest demo ends with exactly this merge.

Share it

A live, orbitable copy of this model on your own page: no build step, no three.js on your side, one iframe.

<iframe src="https://polyfork.dev/embed/anchor-chain-run-d58343"
        width="480" height="360" loading="lazy"
        style="border:0;border-radius:12px"
        title="Anchor Chain Run, low-poly 3D model"></iframe>

<p><a href="https://polyfork.dev/asset/anchor-chain-run-d58343">Anchor Chain Run</a>
   by <a href="https://polyfork.dev">Polyfork</a></p>

Open the frame

Used the file rather than the frame? Under our licence attribution is not required and never will be. To share or re-upload the file itself, take it under CC BY 4.0 and keep this line with it:

<a href="https://polyfork.dev/asset/anchor-chain-run-d58343">Anchor Chain Run</a> by <a href="https://polyfork.dev">Polyfork</a>, <a href="https://creativecommons.org/licenses/by/4.0/">CC BY 4.0</a>

Anchor Chain RunFree

Hotlink or download it. The copy-paste snippet just works.

4m run of heavy rusted anchor chain lying across the seabed as one aggregate strand, oversized flat-shaded links, ends aligned to the module so copies join into long runs; knob for slack curve. Part of the Coral Reef kit.

  • 740 triangles · 1 material
  • 4 × 0.39 × 0.57 m, real-world scale
  • GLB (117 KB) + drop-in ES module
  • Commercial use: games, apps, client work, anything, no attribution required. The mesh files are also CC BY 4.0: share or resell them with a credit. (No reselling the .mjs source, and no building a commercial asset generator from it.)
Other engines: FBX USDZ USD OBJ + .mtl

Materials, not vertex colours: the palette comes across as named materials you can retint, and they carry this model's own knob names.

Free, no account needed, commercial use included. The source code, the .mjs program behind the sliders, comes with a free account, zipped with the GLB and a ready index.html.

Need a different version of this? Request a variant.

Related assets

Free Admiralty Anchor low-poly 3D model
Admiralty Anchor
560 tris
Free Sunken Fishing Boat low-poly 3D model
Sunken Fishing Boat
1,192 tris
Free Encrusted Cargo Crate low-poly 3D model
Encrusted Cargo Crate
744 tris
Free Starfish low-poly 3D model
Starfish
1,096 tris
Free Mooring Block low-poly 3D model
Mooring Block
568 tris
Free One-Person Submarine low-poly 3D model
One-Person Submarine
2,590 tris

One of 3,059 free 3D models for three.js, every one hotlinkable from the CDN with no account.

Polyfork

Sign in

One account for your purchases and downloads.

Continue with Google
or

No password needed: the link signs you in directly.