WXXR/miniprogram/pages/custom/scene-custom-render/index.wxml

<xr-demo-viewer
  title="定制渲染资源"
  intro="使用xrFrameSystem定制Effect和Geometry，并使用。"
  code="{{xmlCode}}"
>
  <xr-custom-render
    disable-scroll
    id="main-frame"
    width="{{renderWidth}}"
    height="{{renderHeight}}"
    style="width:{{width}}px;height:{{height}}px;top:{{top}}px;left:{{left}}px;display:block;"
  />
</xr-demo-viewer>