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- {"ast":null,"code":"import { PBRMaterial } from \"@babylonjs/core/Materials/PBR/pbrMaterial.js\";\nimport { GLTFLoader } from \"../glTFLoader.js\";\nconst NAME = \"KHR_materials_translucency\";\n/**\n * [Proposed Specification](https://github.com/KhronosGroup/glTF/pull/1825)\n * !!! Experimental Extension Subject to Changes !!!\n */\n// eslint-disable-next-line @typescript-eslint/naming-convention\nexport class KHR_materials_translucency {\n /**\n * @internal\n */\n constructor(loader) {\n /**\n * The name of this extension.\n */\n this.name = NAME;\n /**\n * Defines a number that determines the order the extensions are applied.\n */\n this.order = 174;\n this._loader = loader;\n this.enabled = this._loader.isExtensionUsed(NAME);\n if (this.enabled) {\n loader.parent.transparencyAsCoverage = true;\n }\n }\n /** @internal */\n dispose() {\n this._loader = null;\n }\n /**\n * @internal\n */\n loadMaterialPropertiesAsync(context, material, babylonMaterial) {\n return GLTFLoader.LoadExtensionAsync(context, material, this.name, (extensionContext, extension) => {\n const promises = new Array();\n promises.push(this._loader.loadMaterialBasePropertiesAsync(context, material, babylonMaterial));\n promises.push(this._loader.loadMaterialPropertiesAsync(context, material, babylonMaterial));\n promises.push(this._loadTranslucentPropertiesAsync(extensionContext, material, babylonMaterial, extension));\n return Promise.all(promises).then(() => {});\n });\n }\n _loadTranslucentPropertiesAsync(context, material, babylonMaterial, extension) {\n if (!(babylonMaterial instanceof PBRMaterial)) {\n throw new Error(`${context}: Material type not supported`);\n }\n const pbrMaterial = babylonMaterial;\n // Enables \"translucency\" texture which represents diffusely-transmitted light.\n pbrMaterial.subSurface.isTranslucencyEnabled = true;\n // Since this extension models thin-surface transmission only, we must make the\n // internal IOR == 1.0 and set the thickness to 0.\n pbrMaterial.subSurface.volumeIndexOfRefraction = 1.0;\n pbrMaterial.subSurface.minimumThickness = 0.0;\n pbrMaterial.subSurface.maximumThickness = 0.0;\n // Albedo colour will tint transmission.\n pbrMaterial.subSurface.useAlbedoToTintTranslucency = true;\n if (extension.translucencyFactor !== undefined) {\n pbrMaterial.subSurface.translucencyIntensity = extension.translucencyFactor;\n } else {\n pbrMaterial.subSurface.translucencyIntensity = 0.0;\n pbrMaterial.subSurface.isTranslucencyEnabled = false;\n return Promise.resolve();\n }\n if (extension.translucencyTexture) {\n extension.translucencyTexture.nonColorData = true;\n return this._loader.loadTextureInfoAsync(`${context}/translucencyTexture`, extension.translucencyTexture).then(texture => {\n pbrMaterial.subSurface.translucencyIntensityTexture = texture;\n });\n } else {\n return Promise.resolve();\n }\n }\n}\nGLTFLoader.RegisterExtension(NAME, loader => new KHR_materials_translucency(loader));","map":{"version":3,"names":["PBRMaterial","GLTFLoader","NAME","KHR_materials_translucency","constructor","loader","name","order","_loader","enabled","isExtensionUsed","parent","transparencyAsCoverage","dispose","loadMaterialPropertiesAsync","context","material","babylonMaterial","LoadExtensionAsync","extensionContext","extension","promises","Array","push","loadMaterialBasePropertiesAsync","_loadTranslucentPropertiesAsync","Promise","all","then","Error","pbrMaterial","subSurface","isTranslucencyEnabled","volumeIndexOfRefraction","minimumThickness","maximumThickness","useAlbedoToTintTranslucency","translucencyFactor","undefined","translucencyIntensity","resolve","translucencyTexture","nonColorData","loadTextureInfoAsync","texture","translucencyIntensityTexture","RegisterExtension"],"sources":["F:/workspace/202226701027/huinongbao-app/node_modules/@babylonjs/loaders/glTF/2.0/Extensions/KHR_materials_translucency.js"],"sourcesContent":["import { PBRMaterial } from \"@babylonjs/core/Materials/PBR/pbrMaterial.js\";\nimport { GLTFLoader } from \"../glTFLoader.js\";\nconst NAME = \"KHR_materials_translucency\";\n/**\n * [Proposed Specification](https://github.com/KhronosGroup/glTF/pull/1825)\n * !!! Experimental Extension Subject to Changes !!!\n */\n// eslint-disable-next-line @typescript-eslint/naming-convention\nexport class KHR_materials_translucency {\n /**\n * @internal\n */\n constructor(loader) {\n /**\n * The name of this extension.\n */\n this.name = NAME;\n /**\n * Defines a number that determines the order the extensions are applied.\n */\n this.order = 174;\n this._loader = loader;\n this.enabled = this._loader.isExtensionUsed(NAME);\n if (this.enabled) {\n loader.parent.transparencyAsCoverage = true;\n }\n }\n /** @internal */\n dispose() {\n this._loader = null;\n }\n /**\n * @internal\n */\n loadMaterialPropertiesAsync(context, material, babylonMaterial) {\n return GLTFLoader.LoadExtensionAsync(context, material, this.name, (extensionContext, extension) => {\n const promises = new Array();\n promises.push(this._loader.loadMaterialBasePropertiesAsync(context, material, babylonMaterial));\n promises.push(this._loader.loadMaterialPropertiesAsync(context, material, babylonMaterial));\n promises.push(this._loadTranslucentPropertiesAsync(extensionContext, material, babylonMaterial, extension));\n return Promise.all(promises).then(() => { });\n });\n }\n _loadTranslucentPropertiesAsync(context, material, babylonMaterial, extension) {\n if (!(babylonMaterial instanceof PBRMaterial)) {\n throw new Error(`${context}: Material type not supported`);\n }\n const pbrMaterial = babylonMaterial;\n // Enables \"translucency\" texture which represents diffusely-transmitted light.\n pbrMaterial.subSurface.isTranslucencyEnabled = true;\n // Since this extension models thin-surface transmission only, we must make the\n // internal IOR == 1.0 and set the thickness to 0.\n pbrMaterial.subSurface.volumeIndexOfRefraction = 1.0;\n pbrMaterial.subSurface.minimumThickness = 0.0;\n pbrMaterial.subSurface.maximumThickness = 0.0;\n // Albedo colour will tint transmission.\n pbrMaterial.subSurface.useAlbedoToTintTranslucency = true;\n if (extension.translucencyFactor !== undefined) {\n pbrMaterial.subSurface.translucencyIntensity = extension.translucencyFactor;\n }\n else {\n pbrMaterial.subSurface.translucencyIntensity = 0.0;\n pbrMaterial.subSurface.isTranslucencyEnabled = false;\n return Promise.resolve();\n }\n if (extension.translucencyTexture) {\n extension.translucencyTexture.nonColorData = true;\n return this._loader.loadTextureInfoAsync(`${context}/translucencyTexture`, extension.translucencyTexture).then((texture) => {\n pbrMaterial.subSurface.translucencyIntensityTexture = texture;\n });\n }\n else {\n return Promise.resolve();\n }\n }\n}\nGLTFLoader.RegisterExtension(NAME, (loader) => new 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