ClientFrameWork/assets/materials/RectMaterial.mtl

{
  "__type__": "cc.Material",
  "_name": "",
  "_objFlags": 0,
  "_native": "",
  "_effectAsset": {
    "__uuid__": "8f74bf8b-54bb-4b7c-84fc-80beffeb1c89"
  },
  "_techniqueIndex": 0,
  "_techniqueData": {
    "0": {
      "props": {
        "u_UVRightBottom": {
          "__type__": "cc.Vec2",
          "x": 1,
          "y": 1
        },
        "u_UVLeftTop": {
          "__type__": "cc.Vec2",
          "x": 0,
          "y": 0
        }
      },
      "defines": {
        "USE_TEXTURE": true
      }
    }
  }
}