OptionalbaseOptionalpositionObject position of every created mesh (default: [0, 0, 0]); the model origin lands here
OptionalrotationEuler radians [rx, ry, rz], same convention as primitives (default: [0, 0, 0])
OptionalscaleUniform or per-axis scale baked into the vertices (default: 1; glTF units are meters)
OptionalsceneScene index (default: the file's scene, else 0)
OptionalsignalAborts fetches and texture decoding; the promise rejects with an AbortError
Base URL for relative buffer / image URIs (default: the source URL, else the page URL)