Normalise a glTF 2
Normalise a glTF 2.0 binary (.glb) for a target engine and platform (scale, orientation, origin), generate two simplified LODs and convex/trimesh collision, and prove the result loads via a real Godot 4 headless import. Returns a report plus artifacts: normalised .glb LODs, collision data, a Godot scene, a multi-view preview, and the full JSON report. Claims are scoped to the Godot 4 import; Unity/Unreal receive glTF-convention output without import proof.
100000 (raw units)
price
1
calls / 30d
1
unique payers
2026-09-11
updated
Provider
asset.api.williamrobinson.dev · discovered, not yet claimed by its owner
Payment (x402 accepts[])
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"amount": "100000",
"maxTimeoutSeconds": 300
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]Output schema
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"engine": "godot4",
"origin": "floor",
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"size": {
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"metres": 1.5
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"mediaType": "model/gltf-binary",
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{
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"mediaType": "text/plain; charset=utf-8",
"name": "godot-scene.tscn",
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{
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],
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"detail": "The glTF binary passed header, JSON, and gltf-validator structural checks.",
"status": "passed"
},
{
"code": "no_external_uris",
"detail": "No buffer or image referenced an external (non-data:) URI.",
"status": "passed"
},
{
"code": "within_limits",
"detail": "Triangle, material, texture, texture-pixel, and node counts are within configured limits.",
"status": "passed"
},
{
"code": "bounds_expected",
"detail": "Expected extent along 'y' of 1.5 m; output measures 1.5000 m.",
"status": "passed"
},
{
"code": "rigged_expected",
"detail": "No expect.rigged was declared.",
"status": "not_checked"
},
{
"code": "animations_expected",
"detail": "No expect.minAnimations was declared.",
"status": "not_checked"
},
{
"code": "engine_loaded",
"detail": "The output asset loaded and instantiated in Godot 4 headless.",
"status": "passed"
},
{
"code": "textures_within_budget",
"detail": "Largest output texture edge is 64px against a 2048px budget.",
"status": "passed"
},
{
"code": "power_of_two_textures",
"detail": "All output textures have power-of-two dimensions.",
"status": "passed"
},
{
"code": "lods_generated",
"detail": "LOD1/LOD2 are identical to LOD0; the geometry is already below the simplifier's useful reduction threshold.",
"status": "passed"
},
{
"code": "collision_generated",
"detail": "Convex hull has 8 vertices.",
"status": "passed"
}
],
"collision": {
"convexHullVertices": 8,
"kind": "convex",
"trimeshTriangles": 0
},
"engineLoad": {
"animations": [],
"engine": "4.7.2.stable.official.ed1daf0bf",
"errors": [],
"loaded": true,
"materials": 1,
"meshInstances": 1,
"nodes": 2,
"skeletons": 0
},
"expiresAt": "2026-01-04T03:04:05.000Z",
"limitations": [
"No Unity or Unreal import is executed; for those engines the asset is normalised to standard glTF conventions their importers expect, not verified by running an actual Unity/Unreal import.",
"Draco, EXT_meshopt_compression, and KTX2 (KHR_texture_basisu) inputs are rejected in v1; only embedded, uncompressed glTF geometry and PNG/JPEG textures are accepted.",
"Normal-map and other non-colour texture colour space is not verified; textures are resized without reinterpreting their intended colour space.",
"LOD error is the meshoptimizer geometric error bound actually reached (as a fraction of mesh radius), not a measure of visual/perceptual difference, and is not a proof the LODs are optimal.",
"Godot's collision generation operates on the LOD0 mesh merged into one shape; per-part or compound collision shapes are not produced."
],
"lods": [
{
"bytes": 2192,
"error": 0,
"name": "asset.glb",
"ratio": 1,
"triangles": 12,
"vertices": 24
},
{
"bytes": 2192,
"error": 0,
"name": "asset-lod1.glb",
"ratio": 0.5,
"triangles": 12,
"vertices": 24
},
{
"bytes": 2192,
"error": 0,
"name": "asset-lod2.glb",
"ratio": 0.25,
"triangles": 12,
"vertices": 24
}
],
"normalization": {
"rotationXDegrees": 0,
"scale": 1.5,
"translation": [
0,
0.75,
0
]
},
"output": {
"animations": 0,
"bones": 0,
"bounds": {
"max": [
0.75,
1.5,
0.75
],
"min": [
-0.75,
0,
-0.75
],
"size": [
1.5,
1.5,
1.5
]
},
"bytes": 2192,
"materials": 1,
"maxTextureEdge": 64,
"meshes": 1,
"nodes": 1,
"primitives": 1,
"skins": 0,
"textures": 1,
"triangles": 12,
"vertices": 24
},
"repairs": [],
"source": {
"animations": 0,
"bones": 0,
"bounds": {
"max": [
0.5,
0.5,
0.5
],
"min": [
-0.5,
-0.5,
-0.5
],
"size": [
1,
1,
1
]
},
"bytes": 2192,
"materials": 1,
"maxTextureEdge": 64,
"meshes": 1,
"nodes": 1,
"primitives": 1,
"skins": 0,
"textures": 1,
"triangles": 12,
"validatorErrors": 0,
"validatorWarnings": 0,
"vertices": 24
},
"status": "passed",
"target": {
"collision": "convex",
"engine": "godot4",
"maxTextureSize": 2048,
"origin": "floor",
"platform": "desktop",
"size": {
"axis": "y",
"metres": 1.5
},
"sourceUp": "y"
},
"tools": {
"engine": "4.7.2.stable.official.ed1daf0bf",
"transform": "@gltf-transform/[email protected] [email protected] [email protected] [email protected]",
"validator": "[email protected]"
},
"truncated": false,
"validator": [],
"warnings": [
"LOD simplifier could not reduce a mesh primitive below its LOD0 triangle count (12 triangles); the geometry is likely already below the simplifier's useful reduction threshold.",
"LOD simplifier could not reduce a mesh primitive below its LOD0 triangle count (12 triangles); the geometry is likely already below the simplifier's useful reduction threshold."
]
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"$defs": {
"axis": {
"enum": [
"y",
"z"
],
"type": "string"
},
"collision": {
"enum": [
"none",
"convex",
"convex+trimesh"
],
"type": "string"
},
"size": {
"additionalProperties": false,
"properties": {
"axis": {
"$ref": "#/properties/input/properties/body/$defs/sizeAxis"
},
"metres": {
"exclusiveMinimum": 0,
"maximum": 1000,
"type": "number"
}
},
"required": [
"axis",
"metres"
],
"type": "object"
},
"sizeAxis": {
"enum": [
"x",
"y",
"z",
"max"
],
"type": "string"
},
"target": {
"additionalProperties": false,
"properties": {
"collision": {
"$ref": "#/properties/input/properties/body/$defs/collision",
"default": "convex",
"description": "Generate collision: none, a convex hull, or a convex hull plus a static trimesh."
},
"engine": {
"enum": [
"godot4",
"unity",
"unreal",
"gltf"
],
"type": "string"
},
"maxTextureSize": {
"description": "Maximum texture edge in pixels; defaults per platform (mobile 1024, desktop 2048) when omitted.",
"maximum": 8192,
"minimum": 1,
"type": "integer"
},
"origin": {
"default": "keep",
"description": "Where the origin ends up: unchanged, the bounds centre, or the centre of the bottom face.",
"enum": [
"keep",
"center",
"floor"
],
"type": "string"
},
"platform": {
"enum": [
"mobile",
"desktop"
],
"type": "string"
},
"size": {
"$ref": "#/properties/input/properties/body/$defs/size",
"description": "Desired extent in metres along `axis` after normalisation; omitted keeps the source scale."
},
"sourceUp": {
"$ref": "#/properties/input/properties/body/$defs/axis",
"default": "y",
"description": "The source's up axis when known to be Z-up (Blender/Max exports); glTF is Y-up by default."
}
},
"required": [
"engine",
"platform"
],
"type": "object"
}
},
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false,
"properties": {
"asset": {
"contentEncoding": "base64",
"description": "Base64-encoded glTF 2.0 binary (.glb) with embedded textures only (external URIs are rejected); decoded size must not exceed 4194304 bytes.",
"maxLength": 5592408,
"minLength": 1,
"type": "string"
},
"expect": {
"additionalProperties": false,
"properties": {
"minAnimations": {
"maximum": 64,
"minimum": 0,
"type": "integer"
},
"rigged": {
"description": "Require a skeleton (skinned character) to be present.",
"type": "boolean"
},
"size": {
"additionalProperties": false,
"description": "Expected extent in metres along `axis`, checked within `tolerance` (a fraction).",
"properties": {
"axis": {
"$ref": "#/properties/input/properties/body/$defs/sizeAxis"
},
"metres": {
"exclusiveMinimum": 0,
"maximum": 1000,
"type": "number"
},
"tolerance": {
"default": 0.05,
"maximum": 0.5,
"minimum": 0,
"type": "number"
}
},
"required": [
"axis",
"metres"
],
"type": "object"
}
},
"type": "object"
},
"target": {
"$ref": "#/properties/input/properties/body/$defs/target"
}
},
"required": [
"asset",
"target"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
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"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"$defs": {
"artifact": {
"additionalProperties": false,
"properties": {
"href": {
"format": "uri",
"type": "string"
},
"mediaType": {
"maxLength": 128,
"minLength": 1,
"type": "string"
},
"name": {
"enum": [
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"asset-lod2.glb",
"collision.json",
"godot-scene.tscn",
"preview.png",
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"sha256": {
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}
},
"required": [
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"href"
],
"type": "object"
},
"bounds": {
"additionalProperties": false,
"properties": {
"max": {
"$ref": "#/properties/output/properties/example/$defs/vector3"
},
"min": {
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},
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}
},
"required": [
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],
"type": "object"
},
"check": {
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"properties": {
"code": {
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},
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},
"status": {
"enum": [
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},
"required": [
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],
"type": "object"
},
"collision": {
"enum": [
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"convex",
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],
"type": "string"
},
"lod": {
"additionalProperties": false,
"properties": {
"bytes": {
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},
"error": {
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},
"name": {
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"asset-lod2.glb"
],
"type": "string"
},
"ratio": {
"maximum": 1,
"minimum": 0,
"type": "number"
},
"triangles": {
"maximum": 250000,
"minimum": 0,
"type": "integer"
},
"vertices": {
"minimum": 0,
"type": "integer"
}
},
"required": [
"name",
"ratio",
"triangles",
"vertices",
"bytes",
"error"
],
"type": "object"
},
"target": {
"additionalProperties": false,
"properties": {
"collision": {
"$ref": "#/properties/output/properties/example/$defs/collision"
},
"engine": {
"enum": [
"godot4",
"unity",
"unreal",
"gltf"
],
"type": "string"
},
"maxTextureSize": {
"maximum": 8192,
"minimum": 1,
"type": "integer"
},
"origin": {
"enum": [
"keep",
"center",
"floor"
],
"type": "string"
},
"platform": {
"enum": [
"mobile",
"desktop"
],
"type": "string"
},
"size": {
"additionalProperties": false,
"properties": {
"axis": {
"enum": [
"x",
"y",
"z",
"max"
],
"type": "string"
},
"metres": {
"exclusiveMinimum": 0,
"maximum": 1000,
"type": "number"
}
},
"required": [
"axis",
"metres"
],
"type": "object"
},
"sourceUp": {
"enum": [
"y",
"z"
],
"type": "string"
}
},
"required": [
"engine",
"platform",
"sourceUp",
"origin",
"collision"
],
"type": "object"
},
"vector3": {
"items": {
"type": "number"
},
"maxItems": 3,
"minItems": 3,
"type": "array"
}
},
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false,
"properties": {
"artifacts": {
"items": {
"$ref": "#/properties/output/properties/example/$defs/artifact"
},
"maxItems": 7,
"type": "array"
},
"checks": {
"items": {
"$ref": "#/properties/output/properties/example/$defs/check"
},
"maxItems": 32,
"type": "array"
},
"collision": {
"additionalProperties": false,
"properties": {
"convexHullVertices": {
"minimum": 0,
"type": "integer"
},
"kind": {
"$ref": "#/properties/output/properties/example/$defs/collision"
},
"trimeshTriangles": {
"minimum": 0,
"type": "integer"
}
},
"required": [
"kind",
"convexHullVertices",
"trimeshTriangles"
],
"type": "object"
},
"engineLoad": {
"additionalProperties": false,
"properties": {
"animations": {
"items": {
"maxLength": 256,
"type": "string"
},
"maxItems": 256,
"type": "array"
},
"engine": {
"type": "string"
},
"errors": {
"items": {
"maxLength": 2048,
"type": "string"
},
"maxItems": 64,
"type": "array"
},
"loaded": {
"type": "boolean"
},
"materials": {
"minimum": 0,
"type": "integer"
},
"meshInstances": {
"minimum": 0,
"type": "integer"
},
"nodes": {
"minimum": 0,
"type": "integer"
},
"skeletons": {
"minimum": 0,
"type": "integer"
}
},
"required": [
"engine",
"loaded",
"nodes",
"meshInstances",
"materials",
"skeletons",
"animations",
"errors"
],
"type": "object"
},
"expiresAt": {
"format": "date-time",
"type": "string"
},
"limitations": {
"items": {
"maxLength": 4096,
"type": "string"
},
"maxItems": 16,
"type": "array"
},
"lods": {
"items": {
"$ref": "#/properties/output/properties/example/$defs/lod"
},
"maxItems": 3,
"minItems": 1,
"type": "array"
},
"normalization": {
"additionalProperties": false,
"properties": {
"rotationXDegrees": {
"type": "number"
},
"scale": {
"type": "number"
},
"translation": {
"$ref": "#/properties/output/properties/example/$defs/vector3"
}
},
"required": [
"scale",
"rotationXDegrees",
"translation"
],
"type": "object"
},
"output": {
"additionalProperties": false,
"properties": {
"animations": {
"minimum": 0,
"type": "integer"
},
"bones": {
"minimum": 0,
"type": "integer"
},
"bounds": {
"$ref": "#/properties/output/properties/example/$defs/bounds"
},
"bytes": {
"minimum": 0,
"type": "integer"
},
"materials": {
"maximum": 32,
"minimum": 0,
"type": "integer"
},
"maxTextureEdge": {
"minimum": 0,
"type": "integer"
},
"meshes": {
"minimum": 0,
"type": "integer"
},
"nodes": {
"maximum": 2000,
"minimum": 0,
"type": "integer"
},
"primitives": {
"minimum": 0,
"type": "integer"
},
"skins": {
"minimum": 0,
"type": "integer"
},
"textures": {
"maximum": 32,
"minimum": 0,
"type": "integer"
},
"triangles": {
"maximum": 250000,
"minimum": 0,
"type": "integer"
},
"vertices": {
"minimum": 0,
"type": "integer"
}
},
"required": [
"triangles",
"vertices",
"primitives",
"meshes",
"nodes",
"materials",
"textures",
"maxTextureEdge",
"skins",
"bones",
"animations",
"bytes",
"bounds"
],
"type": "object"
},
"repairs": {
"items": {
"additionalProperties": false,
"properties": {
"code": {
"maxLength": 128,
"type": "string"
},
"detail": {
"maxLength": 2048,
"type": "string"
}
},
"required": [
"code",
"detail"
],
"type": "object"
},
"maxItems": 100,
"type": "array"
},
"source": {
"additionalProperties": false,
"properties": {
"animations": {
"minimum": 0,
"type": "integer"
},
"bones": {
"minimum": 0,
"type": "integer"
},
"bounds": {
"$ref": "#/properties/output/properties/example/$defs/bounds"
},
"bytes": {
"minimum": 0,
"type": "integer"
},
"materials": {
"maximum": 32,
"minimum": 0,
"type": "integer"
},
"maxTextureEdge": {
"minimum": 0,
"type": "integer"
},
"meshes": {
"minimum": 0,
"type": "integer"
},
"nodes": {
"maximum": 2000,
"minimum": 0,
"type": "integer"
},
"primitives": {
"minimum": 0,
"type": "integer"
},
"skins": {
"minimum": 0,
"type": "integer"
},
"textures": {
"maximum": 32,
"minimum": 0,
"type": "integer"
},
"triangles": {
"maximum": 250000,
"minimum": 0,
"type": "integer"
},
"validatorErrors": {
"minimum": 0,
"type": "integer"
},
"validatorWarnings": {
"minimum": 0,
"type": "integer"
},
"vertices": {
"minimum": 0,
"type": "integer"
}
},
"required": [
"triangles",
"vertices",
"primitives",
"meshes",
"nodes",
"materials",
"textures",
"maxTextureEdge",
"skins",
"bones",
"animations",
"bytes",
"bounds",
"validatorErrors",
"validatorWarnings"
],
"type": "object"
},
"status": {
"enum": [
"passed",
"failed"
],
"type": "string"
},
"target": {
"$ref": "#/properties/output/properties/example/$defs/target"
},
"tools": {
"additionalProperties": false,
"properties": {
"engine": {
"type": "string"
},
"transform": {
"type": "string"
},
"validator": {
"type": "string"
}
},
"required": [
"validator",
"transform",
"engine"
],
"type": "object"
},
"truncated": {
"type": "boolean"
},
"validator": {
"items": {
"additionalProperties": false,
"properties": {
"code": {
"maxLength": 128,
"type": "string"
},
"message": {
"maxLength": 2048,
"type": "string"
},
"pointer": {
"maxLength": 512,
"type": "string"
},
"severity": {
"enum": [
"error",
"warning",
"info"
],
"type": "string"
}
},
"required": [
"severity",
"code",
"message",
"pointer"
],
"type": "object"
},
"maxItems": 100,
"type": "array"
},
"warnings": {
"items": {
"maxLength": 4096,
"type": "string"
},
"maxItems": 100,
"type": "array"
}
},
"required": [
"status",
"tools",
"target",
"source",
"output",
"normalization",
"lods",
"collision",
"engineLoad",
"repairs",
"checks",
"validator",
"warnings",
"limitations",
"truncated",
"expiresAt",
"artifacts"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
},
"builder-code": {
"info": {
"s": [
"cdp_sdk_server"
]
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false,
"properties": {
"a": {
"description": "App builder code",
"pattern": "^[a-z0-9_]{1,32}$",
"type": "string"
},
"s": {
"description": "Service builder codes",
"items": {
"pattern": "^[a-z0-9_]{1,32}$",
"type": "string"
},
"maxItems": 11,
"type": "array"
},
"w": {
"description": "Wallet builder code",
"pattern": "^[a-z0-9_]{1,32}$",
"type": "string"
}
},
"type": "object"
}
},
"eip2612GasSponsoring": {},
"erc20ApprovalGasSponsoring": {},
"payment-identifier": {
"info": {
"required": true
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"id": {
"maxLength": 128,
"minLength": 16,
"pattern": "^[a-zA-Z0-9_-]+$",
"type": "string"
},
"required": {
"type": "boolean"
}
},
"required": [
"required"
],
"type": "object"
}
}
}Use it
curl
curl "https://asset.api.williamrobinson.dev/v1/asset/prepare" # -> 402 Payment Required, accepts[] lists how to pay # retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid
JavaScript
const res = await fetch("https://asset.api.williamrobinson.dev/v1/asset/prepare");
if (res.status === 402) {
const { accepts } = await res.json();
// pay one of accepts[] via an x402 client, then retry with the payment header
}Python
import httpx
res = httpx.get("https://asset.api.williamrobinson.dev/v1/asset/prepare")
if res.status_code == 402:
accepts = res.json()["accepts"]
# pay one of accepts[] via an x402 client, then retry with the payment headerMachine-readable
Everything on this page is also available as clean JSON at /resources/8216.json, and this resource appears in /discovery/resources and /discovery/search.