Gaussian 初始化与模型加载

import { BimEngineGaussian, getGaussianFormatFromName } from 'iflow-engine';

const gaussian = new BimEngineGaussian('gaussian-viewer', {
  orientationPreset: 'x180',
  initialCameraPosition: [0, 0, 6],
  initialCameraLookAt: [0, 0, 0]
});

const url = 'https://example.com/models/scan.splat';
const scene = await gaussian.loadModel(url, {
  id: 'scan-001',
  name: '现场扫描',
  format: getGaussianFormatFromName(url),
  progressiveLoad: true
});

支持 .ksplat、.splat、.ply、.spz。该引擎构造时自动初始化，不需要 ready。