{
  "source": "[本机资料路径]",
  "video": "教学记录8.mp4",
  "frame": 50,
  "two_sided_class": "ai_two_sided",
  "shared_opacity": true,
  "materials": [
    {
      "name": "Material #45",
      "class": "ai_standard_surface",
      "base": 0.0,
      "specular": 0.0,
      "emission": 1.0,
      "emission_map": "贴图 #5:Gradient Ramp",
      "opacity_map": "贴图 #3:Composite"
    },
    {
      "name": "Material #49",
      "class": "ai_standard_surface",
      "base": 0.0,
      "specular": 0.0,
      "emission": 1.0,
      "emission_map": "贴图 #6:Gradient Ramp",
      "opacity_map": "贴图 #3:Composite"
    }
  ],
  "limits": [
    "Class2 saved mesh uses MeshSmooth2 and top Noise Frequency0.8; video 10:30/11:30 shows MeshSmooth1 and intermediate Noise frequencies",
    "Study camera and gray background supplied, not teacher viewport",
    "Blue ramp native positions differ from intermediate video edit at05:30",
    "Not final assessment delivery"
  ],
  "saved_reopened": true
}