text: {
      "$schema": "http://json-schema.org/draft-04/schema",
      "title": "ADOBE_materials_thin_transparency glTF extension",
      "type": "object",
      "description": "glTF extension that defines properties to model physically plausible optical transparency.",
      "allOf": [ { "$ref": "glTFProperty.schema.json" } ],
      "properties": {
          "transmissionFactor": {
              "type": "number",
              "description": "The base percentage of light transmitted through the surface.",
              "default": 1.0,
              "minimum": 0.0,
              "maximum": 1.0,
              "gltf_detailedDescription": "The base percentage of non-specularly reflected light that is transmitted through the surface. i.e. of the light that penetrates a surface (isn't specularly reflected), what percentage is transmitted and not diffusely re-emitted from the surface?"
          },
          "transmissionTexture": {
              "allOf": [ { "$ref": "textureInfo.schema.json" } ],
              "description": "A greyscale texture that defines the transmission percentage of the surface. This will be multiplied by transmissionFactor.",
              "gltf_detailedDescription": "The percentage of non-specularly reflected light that is transmitted through the surface. i.e. of the light that penetrates a surface (isn't specularly reflected), what percentage is transmitted and not diffusely re-emitted from the surface? This will be multiplied by the transmissionFactor."
          },
          "ior": {
              "type": "number",
              "description": "The index of refraction of the material.",
              "default": 1.33,
              "minimum": 1.0,
              "maximum": 4.0,
              "gltf_detailedDescription": "The average index of refraction of the material, ignoring differences between frequencies of light. Default of 1.33 is for liquid water."
          },
          "extensions": { },
          "extras": { }
      }
  }
  