{
    "id": "cargo-walker-6b8a31",
    "title": "Cargo walker",
    "class": "vehicle",
    "triangles": 2887,
    "kit": "salvage-commons-d0be9f",
    "free": true,
    "plan": "free",
    "price_usd": 0,
    "price_note": "free: every low poly model is. The /cdn links need no account and no key (an account adds the ready-to-serve zip). The HD edition, where `hd` is not null, comes with Pro",
    "owned": true,
    "page": "https://polyfork.dev/asset/cargo-walker-6b8a31",
    "thumbnail": "https://polyfork.dev/files/cargo-walker-6b8a31/renders/hero.png",
    "preview_glb": "https://polyfork.dev/cdn/cargo-walker-6b8a31-preview.glb",
    "hd": null,
    "preview_triangles": 2887,
    "preview_fidelity": 1,
    "preview_rigged": true,
    "preview_rig": "pivots",
    "preview_pivots": [
        "leg-l",
        "hip-l",
        "knee-l",
        "leg-r",
        "hip-r",
        "knee-r"
    ],
    "preview_note": "This preview keeps its pivots named (preview_pivots), so they turn as rigged_parts describes; its normals are stripped for flat shading. This model is free, so build with `download.glb`: the authored file, normals and node names as built.",
    "has_rig": true,
    "remixable": true,
    "has_night": true,
    "has_decals": false,
    "has_ik": true,
    "ik_type": "legs",
    "has_skeleton": false,
    "size_m": {
        "x": 7.06,
        "y": 10.96,
        "z": 5.57
    },
    "origin_y": 0,
    "mass_kg": 60000,
    "download": {
        "glb": "https://polyfork.dev/cdn/cargo-walker-6b8a31.glb",
        "mjs": "https://polyfork.dev/cdn/cargo-walker-6b8a31.mjs",
        "auth": "none"
    },
    "export_formats": {
        "fbx": {
            "url": "https://polyfork.dev/dl/cargo-walker-6b8a31.fbx",
            "for": "Unity, Unreal, Maya, 3ds Max",
            "available": true
        },
        "usdz": {
            "url": "https://polyfork.dev/dl/cargo-walker-6b8a31.usdz",
            "for": "iOS AR Quick Look, Omniverse; with UsdPhysics collision and mass",
            "available": true
        },
        "usda": {
            "url": "https://polyfork.dev/dl/cargo-walker-6b8a31.usda",
            "for": "Isaac Sim, Omniverse, Blender, usdview; with UsdPhysics collision and mass",
            "available": true
        },
        "obj": {
            "url": "https://polyfork.dev/dl/cargo-walker-6b8a31.obj",
            "for": "universal, geometry only, no pivots",
            "available": true,
            "also_fetch": "https://polyfork.dev/dl/cargo-walker-6b8a31.mtl",
            "also_fetch_note": "save it beside the .obj as cargo-walker-6b8a31.mtl: the model names that exact file and imports white without it"
        }
    },
    "export_note": "vertex colours become NAMED MATERIALS on export, named after this asset's own colour knobs; a plain format conversion would arrive white, because only three.js reads our COLOR_0. Built on first request (about a second), cached after. This model is free: these download with no account and no key (only its .mjs source asks for a free account).",
    "night": {
        "lamp": {
            "color": "#ffb45a",
            "intensity": 0.9,
            "albedo": "#13284d",
            "findable": true,
            "describe": "warm oil lamp behind the arched cab window and the two round lamps"
        }
    },
    "night_note": "each zone is found by its ALBEDO in COLOR_0: match those vertices exactly, make them emissive at the zone colour and intensity, and drop your scene lights. That is the whole night look.",
    "params_url": "https://polyfork.dev/cdn/cargo-walker-6b8a31-params.json",
    "real_scale": null,
    "physics": {
        "mass_kg": 60000,
        "mass_source": "estimated",
        "material": "iron",
        "body": "dynamic",
        "dimensions_m": {
            "x": 7.06,
            "y": 10.957,
            "z": 5.565
        },
        "up_axis": "Y",
        "meters_per_unit": 1,
        "volume_m3": 54.779985,
        "collision": {
            "approximation": "convexDecomposition",
            "parts": 32,
            "colliders_url": "https://polyfork.dev/cdn/cargo-walker-6b8a31-colliders.json"
        },
        "note": "For the default knob settings; a size knob changes all of it. dimensions_m and the colliders are measured from the model; mass_kg and material are an estimate of what the real object weighs. body \"static\" means fixed in place (give it a collider, no rigid body); \"dynamic\" means it moves. collision.approximation uses UsdPhysics terms: \"convexHull\" = one hull is a good fit, \"convexDecomposition\" = use the per-part hulls in colliders_url (the one hull would fill a gap, like the space under a table). Model space, metres, Y up, origin as the model ships."
    },
    "simready_metadata": {
        "simready_metadata_mass": 60000,
        "simready_metadata_rigid_body_count": 1,
        "usd_dimensions": [
            7.06,
            5.565,
            10.957
        ],
        "usd_up_axis": "Z",
        "usd_meters_per_unit": 1,
        "simready_metadata_validation__profile": null
    },
    "materials": 1,
    "draw_calls": 6,
    "description": "Towering village-built cargo walker about 11m tall on three very long articulated stilt legs that stride over rooftops, a small rounded riveted boiler-plate body slung high with a big open timber cargo cradle on its back.",
    "palette": [
        {
            "hex": "#e3b34a",
            "share": 0.158
        },
        {
            "hex": "#b4652e",
            "share": 0.128
        },
        {
            "hex": "#a8412f",
            "share": 0.121
        },
        {
            "hex": "#5ea83a",
            "share": 0.093
        },
        {
            "hex": "#8fd3b6",
            "share": 0.092
        },
        {
            "hex": "#3b7a2e",
            "share": 0.087
        }
    ],
    "style": "low-poly, flat-shaded vertex colors, no textures, single shared material, so any set of these merges to one draw call; shares palette and scale with its kit",
    "origin": "ground level (minY = 0): the model sits on y=0 as-is",
    "rigged_parts": {
        "leg-l": {
            "axis": "y",
            "range": [
                0,
                25
            ]
        },
        "hip-l": {
            "axis": "x",
            "range": [
                0,
                -40
            ]
        },
        "knee-l": {
            "axis": "x",
            "range": [
                0,
                65
            ]
        },
        "leg-r": {
            "axis": "y",
            "range": [
                0,
                -25
            ]
        },
        "hip-r": {
            "axis": "x",
            "range": [
                0,
                -40
            ]
        },
        "knee-r": {
            "axis": "x",
            "range": [
                0,
                65
            ]
        }
    },
    "detachable_parts": [
        "cargo"
    ],
    "animation": "rigged parts are named groups with the pivot at the hinge/axle: obj.getObjectByName(part) then rotation[axis] (rotate, degrees) or position[axis] (slide, meters). 0 is the pose the model is built in, which is not always shut: `range` is all the travel the part has from there, and outside it the part passes through the body. Whether the range opens or closes is in that knob's describe in params_url",
    "detaching": "detachable parts are named groups you may hide or remove: obj.getObjectByName(part).visible = false, or .removeFromParent(). The surface behind each is closed, so nothing shows a hole",
    "arm": {
        "slew": "leg-l",
        "joints": [
            "hip-l",
            "knee-l"
        ],
        "upper": 2.387,
        "lower": 3.767,
        "tip": [
            2.18,
            -3.746,
            -0.4
        ],
        "tip_rest": [
            3.53,
            0.004,
            0.32
        ],
        "base": [
            1.35,
            6.1,
            0.3
        ],
        "reach": 6.155,
        "stays": [],
        "axes": {
            "slew": "y",
            "joints": "x"
        },
        "units": "metres, radians",
        "runtime": "https://polyfork.dev/cdn/walk.mjs",
        "note": "two-link chain with a slew: the same solver the legged machines use. Joint ranges in `rig` are the real limits and the tip stops at them.",
        "how": "a slew and a two-link boom: aim the tip and solve, stopping at the joint ranges in rigged_parts. three.js users import https://polyfork.dev/cdn/walk.mjs and call arm(model, { rig, detach }).reachTo(point), where rig and detach are the asset module's own exports (import { createAsset, rig, detach } from the .mjs): the arm cannot find its joints without them"
    },
    "gait": {
        "kind": "2-link",
        "step": 1.772,
        "duty": 0.6,
        "clearance": 0.23,
        "crouch": 0.194,
        "fitted": true,
        "legs": [
            {
                "id": "l",
                "hip": "hip-l",
                "knee": "knee-l",
                "axis": "x",
                "mount": "leg-l",
                "thigh": 2.387,
                "shin": 3.755,
                "foot": [
                    1.2,
                    -3.75,
                    -0.2
                ],
                "stance": [
                    2.55,
                    0,
                    0.52
                ],
                "phase": 0.5
            },
            {
                "id": "r",
                "hip": "hip-r",
                "knee": "knee-r",
                "axis": "x",
                "mount": "leg-r",
                "thigh": 2.387,
                "shin": 3.755,
                "foot": [
                    -1.2,
                    -3.75,
                    -0.2
                ],
                "stance": [
                    -2.55,
                    0,
                    0.52
                ],
                "phase": 0
            }
        ],
        "axes": {
            "hip": "x",
            "knee": "x",
            "mount": "y"
        },
        "units": "metres, radians, phase 0..1",
        "runtime": "https://polyfork.dev/cdn/walk.mjs",
        "how": "phase from distance travelled, not from time: foot planted for `duty` of each `step` metres, feet ordered by `phase`. three.js users import https://polyfork.dev/cdn/walk.mjs and call gait.poseAt(distance)"
    },
    "published_at": "2026-10-27 19:03:04",
    "renders": [
        "https://polyfork.dev/files/cargo-walker-6b8a31/renders/back.png",
        "https://polyfork.dev/files/cargo-walker-6b8a31/renders/close.png",
        "https://polyfork.dev/files/cargo-walker-6b8a31/renders/compare.png",
        "https://polyfork.dev/files/cargo-walker-6b8a31/renders/detail.png",
        "https://polyfork.dev/files/cargo-walker-6b8a31/renders/front.png",
        "https://polyfork.dev/files/cargo-walker-6b8a31/renders/hero-crop.png",
        "https://polyfork.dev/files/cargo-walker-6b8a31/renders/hero.png",
        "https://polyfork.dev/files/cargo-walker-6b8a31/renders/left.png",
        "https://polyfork.dev/files/cargo-walker-6b8a31/renders/low-back.png",
        "https://polyfork.dev/files/cargo-walker-6b8a31/renders/low.png",
        "https://polyfork.dev/files/cargo-walker-6b8a31/renders/pose-hip-l.png",
        "https://polyfork.dev/files/cargo-walker-6b8a31/renders/pose-hip-r.png",
        "https://polyfork.dev/files/cargo-walker-6b8a31/renders/pose-knee-l.png",
        "https://polyfork.dev/files/cargo-walker-6b8a31/renders/pose-knee-r.png",
        "https://polyfork.dev/files/cargo-walker-6b8a31/renders/pose-leg-l.png",
        "https://polyfork.dev/files/cargo-walker-6b8a31/renders/pose-leg-r.png",
        "https://polyfork.dev/files/cargo-walker-6b8a31/renders/proofs.png",
        "https://polyfork.dev/files/cargo-walker-6b8a31/renders/removed-cargo.png",
        "https://polyfork.dev/files/cargo-walker-6b8a31/renders/right.png",
        "https://polyfork.dev/files/cargo-walker-6b8a31/renders/top.png",
        "https://polyfork.dev/files/cargo-walker-6b8a31/renders/under.png",
        "https://polyfork.dev/files/cargo-walker-6b8a31/renders/views.png"
    ],
    "license": "Use in commercial projects, no attribution. No redistribution of the files themselves. https://polyfork.dev/licensing",
    "access": {
        "as": "anonymous",
        "remix_bakes_per_hour": 40,
        "remix_bakes_left_this_hour": 40,
        "remix_note": "The budget is on generating NEW geometry. Variations anyone has already baked are served to everybody and never counted, so re-fetching a variant you or anyone else has made costs nothing.",
        "remix_bakes_per_month": 100,
        "remix_bakes_left_this_month": 100,
        "remix_allowance_resets": "2026-12-01",
        "remix_allowance_note": "Anonymous callers are counted per IP address, so other sessions from the same address share this. A free account raises it to 300 a WEEK on its own budget, and costs an email address.",
        "a_free_account_adds": {
            "how": "Authorization: Bearer <key>, created at https://polyfork.dev/account. Costs an email address.",
            "remix_bakes_per_hour": 100,
            "remix_bakes_per_week": 300,
            "downloads": "every low poly model's .mjs program and a ready-to-serve zip from /dl, and any kit as one zip (/dl/kit-<id>.zip). The .glb, .fbx, .usdz, .usda and .obj need no key"
        },
        "pro_adds": {
            "url": "https://polyfork.dev/pricing",
            "usd_per_year": 149,
            "hd_editions": "the HD edition of a model: the same program built finer, high poly with PBR materials generated in code, every knob still working. 1,540 models have one. Free accounts get its public preview (/cdn/<id>-hd-preview.glb) only",
            "cdn": "a per-account /c/<token>/ path for the HD files you can hotlink from a shipped build; it keeps up when an asset is rebuilt, and the token is not the API key",
            "remix_bakes_per_hour": 900,
            "remix_bakes_per_week": "uncapped: a free account gets a weekly allowance, Pro does not"
        }
    }
}