Method toNumberArray

packages/asset-system/src/loaders/FBXLoader.ts:740–755

* Convert FBX property to number array * 将 FBX 属性转换为数字数组 * * Handles all typed arrays (Int32Array, Float64Array, etc.) and regular arrays * 处理所有类型数组（Int32Array、Float64Array 等）和普通数组

(prop: FBXProperty)

     * 处理所有类型数组（Int32Array、Float64Array 等）和普通数组
     */
    private toNumberArray(prop: FBXProperty): number[] {
        if (prop instanceof Float64Array || prop instanceof Float32Array) {
            return Array.from(prop);
        } else if (prop instanceof Int32Array || prop instanceof Uint32Array) {
            return Array.from(prop);
        } else if (prop instanceof Uint8Array || prop instanceof Int8Array) {
            return Array.from(prop);
        } else if (prop instanceof Int16Array || prop instanceof Uint16Array) {
            return Array.from(prop);
        } else if (prop instanceof BigInt64Array) {
            return Array.from(prop, v => Number(v));
        } else if (Array.isArray(prop)) {
            return prop.map(Number);
        }
        return [];
    }

    /**
     * Extract layer element data (normals, UVs, etc.)