WXDemo/miniprogram/components/xr-ar-threeDof/index.wxml

<xr-scene ar-system="modes:threeDof" bind:ready="handleReady" bind:ar-ready="handleARReady">
  <xr-assets bind:progress="handleAssetsProgress" bind:loaded="handleAssetsLoaded">
    <xr-asset-load type="gltf" asset-id="gltf-item" src="https://mmbizwxaminiprogram-1258344707.cos.ap-guangzhou.myqcloud.com/xr-frame/demo/just_a_girl/index.glb" />
  </xr-assets>
  <xr-node>
    <xr-gltf model="gltf-item" position="1 0 1" scale="0.006 0.006 0.006"></xr-gltf>
    <xr-gltf model="gltf-item" position="1 0 -1" scale="0.006 0.006 0.006"></xr-gltf>
    <xr-gltf model="gltf-item" position="-1 0 1" scale="0.006 0.006 0.006"></xr-gltf>
    <xr-gltf model="gltf-item" position="-1 0 -1" scale="0.006 0.006 0.006"></xr-gltf>
    <!-- 坐标系提示，单位1 的坐标轴 -->
    <xr-mesh node-id="mesh-x" position="1 0 0"  scale="2 0.02 0.02" geometry="cube" uniforms="u_baseColorFactor:0.7 0.3 0.3 1" ></xr-mesh>
    <xr-mesh node-id="mesh-y" position="0 1 0"  scale="0.02 2 0.02" geometry="cube" uniforms="u_baseColorFactor:0.3 0.7 0.3 1"></xr-mesh>
    <xr-mesh node-id="mesh-z" position="0 0 1"  scale="0.02 0.02 2" geometry="cube" uniforms="u_baseColorFactor:0.3 0.3 0.7 1"></xr-mesh>
    <xr-camera
      id="camera" node-id="camera" clear-color="0.925 0.925 0.925 1"
      background="ar" is-ar-camera
    ></xr-camera>
  </xr-node>
  <xr-node node-id="lights">
    <xr-light type="ambient" color="1 1 1" intensity="1" />
    <xr-light type="directional" rotation="180 0 0" color="1 1 1" intensity="3" />
  </xr-node>
</xr-scene>