{ "id": "regolith-excavator-06689b", "title": "Regolith Excavator", "class": "vehicle", "triangles": 1968, "kit": "space-base-kit-cf65de", "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/regolith-excavator-06689b", "thumbnail": "https://polyfork.dev/files/regolith-excavator-06689b/renders/hero.png", "preview_glb": "https://polyfork.dev/cdn/regolith-excavator-06689b-preview.glb", "hd": null, "preview_triangles": 1968, "preview_fidelity": 1, "has_rig": true, "remixable": true, "has_night": true, "has_decals": false, "has_ik": false, "ik_type": null, "has_skeleton": false, "size_m": { "x": 2.3, "y": 3.07, "z": 6.06 }, "origin_y": 0, "mass_kg": 30000, "download": { "glb": "https://polyfork.dev/cdn/regolith-excavator-06689b.glb", "mjs": "https://polyfork.dev/cdn/regolith-excavator-06689b.mjs", "auth": "none" }, "export_formats": { "fbx": { "url": "https://polyfork.dev/dl/regolith-excavator-06689b.fbx", "for": "Unity, Unreal, Maya, 3ds Max", "available": true }, "usdz": { "url": "https://polyfork.dev/dl/regolith-excavator-06689b.usdz", "for": "iOS AR Quick Look, Omniverse; with UsdPhysics collision and mass", "available": true }, "usda": { "url": "https://polyfork.dev/dl/regolith-excavator-06689b.usda", "for": "Isaac Sim, Omniverse, Blender, usdview; with UsdPhysics collision and mass", "available": true }, "obj": { "url": "https://polyfork.dev/dl/regolith-excavator-06689b.obj", "for": "universal, geometry only, no pivots", "available": true } }, "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. These are yours: send your key as Authorization: Bearer .", "night": { "workLamp": { "color": "#f4f1e6", "intensity": 1, "albedo": "#989ea7", "findable": true, "describe": "the twin work lamps under the cab roof lip \u2014 hard white, aimed forward over the bucket" }, "tailLamp": { "color": "#e8452f", "intensity": 0.55, "albedo": "#73594d", "findable": true, "describe": "the two rear lamps in the counterweight \u2014 dim red, the machine seen from behind" }, "glass": { "color": "#a8e2ee", "intensity": 0.6, "albedo": "#78c0cc", "findable": true, "describe": "the cab interior lit through the cyan visor, and the two glow strips down the house flanks \u2014 a soft cabin glow and a running light, not a lamp" } }, "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/regolith-excavator-06689b-params.json", "physics": { "mass_kg": 30000, "mass_source": "estimated", "material": "steel", "body": "dynamic", "dimensions_m": { "x": 2.3, "y": 2.965, "z": 5.899 }, "up_axis": "Y", "meters_per_unit": 1, "volume_m3": 12.013151, "collision": { "approximation": "convexDecomposition", "parts": 26, "colliders_url": "https://polyfork.dev/cdn/regolith-excavator-06689b-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": 30000, "simready_metadata_rigid_body_count": 1, "usd_dimensions": [ 2.3, 5.899, 2.965 ], "usd_up_axis": "Z", "usd_meters_per_unit": 1, "simready_metadata_validation__profile": null }, "materials": 1, "draw_calls": 15, "description": "Tracked regolith excavator, 4.5m long, astro orange upper house on a gunmetal tracked undercarriage with a cyan cab visor and an articulated two-part boom carrying a faceted digging bucket; carries a boom knob from stowed and folded down to fully reached out.", "palette": [ { "hex": "#737785", "share": 0.303 }, { "hex": "#3d3f47", "share": 0.161 }, { "hex": "#1d1e26", "share": 0.159 }, { "hex": "#dcdee0", "share": 0.135 }, { "hex": "#b2684b", "share": 0.111 }, { "hex": "#975b44", "share": 0.056 } ], "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": { "turntable": { "axis": "y", "range": [ -180, 180 ] }, "boom-lower": { "axis": "x", "range": [ -26, 22 ] }, "boom-upper": { "axis": "x", "range": [ -66, 44 ] }, "bucket": { "axis": "x", "range": [ -55, 70 ] } }, "detachable_parts": [ "antenna", "tanks" ], "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)", "arm": { "slew": "turntable", "joints": [ "boom-lower", "boom-upper" ], "upper": 2.11, "lower": 1.58, "tip": [ 0, 0, 1.58 ], "tip_rest": [ -0.34, 1.255, 2.69 ], "base": [ 0, 0.88, -0.61 ], "reach": 3.69, "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" }, "published_at": "2026-08-14 11:32:21", "renders": [ "https://polyfork.dev/files/regolith-excavator-06689b/renders/back.png", "https://polyfork.dev/files/regolith-excavator-06689b/renders/close.png", "https://polyfork.dev/files/regolith-excavator-06689b/renders/compare.png", "https://polyfork.dev/files/regolith-excavator-06689b/renders/detail.png", "https://polyfork.dev/files/regolith-excavator-06689b/renders/front.png", "https://polyfork.dev/files/regolith-excavator-06689b/renders/hero-crop.png", "https://polyfork.dev/files/regolith-excavator-06689b/renders/hero.png", "https://polyfork.dev/files/regolith-excavator-06689b/renders/left.png", "https://polyfork.dev/files/regolith-excavator-06689b/renders/low-back.png", "https://polyfork.dev/files/regolith-excavator-06689b/renders/low.png", "https://polyfork.dev/files/regolith-excavator-06689b/renders/pose-boom-lower.png", "https://polyfork.dev/files/regolith-excavator-06689b/renders/pose-boom-upper.png", "https://polyfork.dev/files/regolith-excavator-06689b/renders/pose-bucket.png", "https://polyfork.dev/files/regolith-excavator-06689b/renders/pose-turntable.png", "https://polyfork.dev/files/regolith-excavator-06689b/renders/pose-wrist.png", "https://polyfork.dev/files/regolith-excavator-06689b/renders/proofs.png", "https://polyfork.dev/files/regolith-excavator-06689b/renders/removed-antenna.png", "https://polyfork.dev/files/regolith-excavator-06689b/renders/removed-tanks.png", "https://polyfork.dev/files/regolith-excavator-06689b/renders/right.png", "https://polyfork.dev/files/regolith-excavator-06689b/renders/top.png", "https://polyfork.dev/files/regolith-excavator-06689b/renders/under.png", "https://polyfork.dev/files/regolith-excavator-06689b/renders/variant-bucketTeeth-3.png", "https://polyfork.dev/files/regolith-excavator-06689b/renders/variant-bucketTeeth-6.png", "https://polyfork.dev/files/regolith-excavator-06689b/renders/variant-colorway-hazard-grey.png", "https://polyfork.dev/files/regolith-excavator-06689b/renders/variant-colorway-regolith-dust.png", "https://polyfork.dev/files/regolith-excavator-06689b/renders/variant-colorway-survey-blue.png", "https://polyfork.dev/files/regolith-excavator-06689b/renders/variant-counterweightRibs-false.png", "https://polyfork.dev/files/regolith-excavator-06689b/renders/variant-handrail-false.png", "https://polyfork.dev/files/regolith-excavator-06689b/renders/variant-reach-0.png", "https://polyfork.dev/files/regolith-excavator-06689b/renders/variant-reach-1.png", "https://polyfork.dev/files/regolith-excavator-06689b/renders/variant-trackLength-3.7.png", "https://polyfork.dev/files/regolith-excavator-06689b/renders/variant-trackLength-5.3.png", "https://polyfork.dev/files/regolith-excavator-06689b/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": "2026-11-01", "remix_allowance_note": "A free account raises this to 300 a WEEK, and costs an email address.", "a_free_account_adds": { "how": "Authorization: Bearer , 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-.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. 1,428 models have one. Free accounts get its public preview (/cdn/-hd-preview.glb) only", "cdn": "a per-account /c// 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 \u2014 a free account gets a weekly allowance, Pro does not" } } }