| 1 |
- {"ast":null,"code":"import { WebGLHardwareTexture } from \"../../Engines/WebGL/webGLHardwareTexture.js\";\nimport { InternalTexture } from \"../../Materials/Textures/internalTexture.js\";\nimport { Observable } from \"../../Misc/observable.js\";\nimport { Tools } from \"../../Misc/tools.js\";\nimport { WebXRFeatureName, WebXRFeaturesManager } from \"../webXRFeaturesManager.js\";\nimport { WebXRAbstractFeature } from \"./WebXRAbstractFeature.js\";\nimport { Color3 } from \"../../Maths/math.color.js\";\nimport { Vector3 } from \"../../Maths/math.vector.js\";\nimport { DirectionalLight } from \"../../Lights/directionalLight.js\";\nimport { BaseTexture } from \"../../Materials/Textures/baseTexture.js\";\nimport { SphericalHarmonics, SphericalPolynomial } from \"../../Maths/sphericalPolynomial.js\";\nimport { LightConstants } from \"../../Lights/lightConstants.js\";\nimport { HDRFiltering } from \"../../Materials/Textures/Filtering/hdrFiltering.js\";\n/**\n * Light Estimation Feature\n *\n * @since 5.0.0\n */\nexport class WebXRLightEstimation extends WebXRAbstractFeature {\n /**\n * Creates a new instance of the light estimation feature\n * @param _xrSessionManager an instance of WebXRSessionManager\n * @param options options to use when constructing this feature\n */\n constructor(_xrSessionManager,\n /**\n * options to use when constructing this feature\n */\n options) {\n super(_xrSessionManager);\n this.options = options;\n this._canvasContext = null;\n this._reflectionCubeMap = null;\n this._xrLightEstimate = null;\n this._xrLightProbe = null;\n this._xrWebGLBinding = null;\n this._lightDirection = Vector3.Up().negateInPlace();\n this._lightColor = Color3.White();\n this._intensity = 1;\n this._sphericalHarmonics = new SphericalHarmonics();\n this._cubeMapPollTime = Date.now();\n this._lightEstimationPollTime = Date.now();\n /**\n * ARCore's reflection cube map size is 16x16.\n * Once other systems support this feature we will need to change this to be dynamic.\n * see https://github.com/immersive-web/lighting-estimation/blob/main/lighting-estimation-explainer.md#cube-map-open-questions\n */\n this._reflectionCubeMapTextureSize = 16;\n /**\n * If createDirectionalLightSource is set to true this light source will be created automatically.\n * Otherwise this can be set with an external directional light source.\n * This light will be updated whenever the light estimation values change.\n */\n this.directionalLight = null;\n /**\n * This observable will notify when the reflection cube map is updated.\n */\n this.onReflectionCubeMapUpdatedObservable = new Observable();\n /**\n * Event Listener for \"reflectionchange\" events.\n */\n this._updateReflectionCubeMap = () => {\n if (!this._xrLightProbe) {\n return;\n }\n // check poll time, do not update if it has not been long enough\n if (this.options.cubeMapPollInterval) {\n const now = Date.now();\n if (now - this._cubeMapPollTime < this.options.cubeMapPollInterval) {\n return;\n }\n this._cubeMapPollTime = now;\n }\n const lp = this._getXRGLBinding().getReflectionCubeMap(this._xrLightProbe);\n if (lp && this._reflectionCubeMap) {\n if (!this._reflectionCubeMap._texture) {\n const internalTexture = new InternalTexture(this._xrSessionManager.scene.getEngine(), 0 /* InternalTextureSource.Unknown */);\n internalTexture.isCube = true;\n internalTexture.invertY = false;\n internalTexture._useSRGBBuffer = this.options.reflectionFormat === \"srgba8\";\n internalTexture.format = 5;\n internalTexture.generateMipMaps = true;\n internalTexture.type = this.options.reflectionFormat !== \"srgba8\" ? 2 : 0;\n internalTexture.samplingMode = 3;\n internalTexture.width = this._reflectionCubeMapTextureSize;\n internalTexture.height = this._reflectionCubeMapTextureSize;\n internalTexture._cachedWrapU = 1;\n internalTexture._cachedWrapV = 1;\n internalTexture._hardwareTexture = new WebGLHardwareTexture(lp, this._getCanvasContext());\n this._reflectionCubeMap._texture = internalTexture;\n } else {\n var _this$_reflectionCube;\n (_this$_reflectionCube = this._reflectionCubeMap._texture._hardwareTexture) === null || _this$_reflectionCube === void 0 || _this$_reflectionCube.set(lp);\n this._reflectionCubeMap._texture.getEngine().resetTextureCache();\n }\n this._reflectionCubeMap._texture.isReady = true;\n if (!this.options.disablePreFiltering) {\n this._xrLightProbe.removeEventListener(\"reflectionchange\", this._updateReflectionCubeMap);\n this._hdrFilter.prefilter(this._reflectionCubeMap).then(() => {\n this._xrSessionManager.scene.markAllMaterialsAsDirty(1);\n this.onReflectionCubeMapUpdatedObservable.notifyObservers(this._reflectionCubeMap);\n this._xrLightProbe.addEventListener(\"reflectionchange\", this._updateReflectionCubeMap);\n });\n } else {\n this._xrSessionManager.scene.markAllMaterialsAsDirty(1);\n this.onReflectionCubeMapUpdatedObservable.notifyObservers(this._reflectionCubeMap);\n }\n }\n };\n this.xrNativeFeatureName = \"light-estimation\";\n if (this.options.createDirectionalLightSource) {\n this.directionalLight = new DirectionalLight(\"light estimation directional\", this._lightDirection, this._xrSessionManager.scene);\n this.directionalLight.position = new Vector3(0, 8, 0);\n // intensity will be set later\n this.directionalLight.intensity = 0;\n this.directionalLight.falloffType = LightConstants.FALLOFF_GLTF;\n }\n this._hdrFilter = new HDRFiltering(this._xrSessionManager.scene.getEngine());\n // https://immersive-web.github.io/lighting-estimation/\n Tools.Warn(\"light-estimation is an experimental and unstable feature.\");\n }\n /**\n * While the estimated cube map is expected to update over time to better reflect the user's environment as they move around those changes are unlikely to happen with every XRFrame.\n * Since creating and processing the cube map is potentially expensive, especially if mip maps are needed, you can listen to the onReflectionCubeMapUpdatedObservable to determine\n * when it has been updated.\n */\n get reflectionCubeMapTexture() {\n return this._reflectionCubeMap;\n }\n /**\n * The most recent light estimate. Available starting on the first frame where the device provides a light probe.\n */\n get xrLightingEstimate() {\n if (this._xrLightEstimate) {\n return {\n lightColor: this._lightColor,\n lightDirection: this._lightDirection,\n lightIntensity: this._intensity,\n sphericalHarmonics: this._sphericalHarmonics\n };\n }\n return this._xrLightEstimate;\n }\n _getCanvasContext() {\n if (this._canvasContext === null) {\n this._canvasContext = this._xrSessionManager.scene.getEngine()._gl;\n }\n return this._canvasContext;\n }\n _getXRGLBinding() {\n if (this._xrWebGLBinding === null) {\n const context = this._getCanvasContext();\n this._xrWebGLBinding = new XRWebGLBinding(this._xrSessionManager.session, context);\n }\n return this._xrWebGLBinding;\n }\n /**\n * attach this feature\n * Will usually be called by the features manager\n *\n * @returns true if successful.\n */\n attach() {\n var _this$options$reflect;\n if (!super.attach()) {\n return false;\n }\n const reflectionFormat = (_this$options$reflect = this.options.reflectionFormat) !== null && _this$options$reflect !== void 0 ? _this$options$reflect : this._xrSessionManager.session.preferredReflectionFormat || \"srgba8\";\n this.options.reflectionFormat = reflectionFormat;\n this._xrSessionManager.session.requestLightProbe({\n reflectionFormat\n }).then(xrLightProbe => {\n this._xrLightProbe = xrLightProbe;\n if (!this.options.disableCubeMapReflection) {\n if (!this._reflectionCubeMap) {\n this._reflectionCubeMap = new BaseTexture(this._xrSessionManager.scene);\n this._reflectionCubeMap._isCube = true;\n this._reflectionCubeMap.coordinatesMode = 3;\n if (this.options.setSceneEnvironmentTexture) {\n this._xrSessionManager.scene.environmentTexture = this._reflectionCubeMap;\n }\n }\n this._xrLightProbe.addEventListener(\"reflectionchange\", this._updateReflectionCubeMap);\n }\n });\n return true;\n }\n /**\n * detach this feature.\n * Will usually be called by the features manager\n *\n * @returns true if successful.\n */\n detach() {\n const detached = super.detach();\n if (this._xrLightProbe !== null && !this.options.disableCubeMapReflection) {\n this._xrLightProbe.removeEventListener(\"reflectionchange\", this._updateReflectionCubeMap);\n this._xrLightProbe = null;\n }\n this._canvasContext = null;\n this._xrLightEstimate = null;\n // When the session ends (on detach) we must clear our XRWebGLBinging instance, which references the ended session.\n this._xrWebGLBinding = null;\n return detached;\n }\n /**\n * Dispose this feature and all of the resources attached\n */\n dispose() {\n super.dispose();\n this.onReflectionCubeMapUpdatedObservable.clear();\n if (this.directionalLight) {\n this.directionalLight.dispose();\n this.directionalLight = null;\n }\n if (this._reflectionCubeMap !== null) {\n if (this._reflectionCubeMap._texture) {\n this._reflectionCubeMap._texture.dispose();\n }\n this._reflectionCubeMap.dispose();\n this._reflectionCubeMap = null;\n }\n }\n _onXRFrame(_xrFrame) {\n if (this._xrLightProbe !== null) {\n if (this.options.lightEstimationPollInterval) {\n const now = Date.now();\n if (now - this._lightEstimationPollTime < this.options.lightEstimationPollInterval) {\n return;\n }\n this._lightEstimationPollTime = now;\n }\n this._xrLightEstimate = _xrFrame.getLightEstimate(this._xrLightProbe);\n if (this._xrLightEstimate) {\n this._intensity = Math.max(1.0, this._xrLightEstimate.primaryLightIntensity.x, this._xrLightEstimate.primaryLightIntensity.y, this._xrLightEstimate.primaryLightIntensity.z);\n const rhsFactor = this._xrSessionManager.scene.useRightHandedSystem ? 1.0 : -1.0;\n // recreate the vector caches, so that the last one provided to the user will persist\n if (this.options.disableVectorReuse) {\n this._lightDirection = new Vector3();\n this._lightColor = new Color3();\n if (this.directionalLight) {\n this.directionalLight.direction = this._lightDirection;\n this.directionalLight.diffuse = this._lightColor;\n }\n }\n this._lightDirection.copyFromFloats(this._xrLightEstimate.primaryLightDirection.x, this._xrLightEstimate.primaryLightDirection.y, this._xrLightEstimate.primaryLightDirection.z * rhsFactor);\n this._lightColor.copyFromFloats(this._xrLightEstimate.primaryLightIntensity.x / this._intensity, this._xrLightEstimate.primaryLightIntensity.y / this._intensity, this._xrLightEstimate.primaryLightIntensity.z / this._intensity);\n this._sphericalHarmonics.updateFromFloatsArray(this._xrLightEstimate.sphericalHarmonicsCoefficients);\n if (this._reflectionCubeMap && !this.options.disableSphericalPolynomial) {\n var _this$_reflectionCube2;\n this._reflectionCubeMap.sphericalPolynomial = this._reflectionCubeMap.sphericalPolynomial || new SphericalPolynomial();\n (_this$_reflectionCube2 = this._reflectionCubeMap.sphericalPolynomial) === null || _this$_reflectionCube2 === void 0 || _this$_reflectionCube2.updateFromHarmonics(this._sphericalHarmonics);\n }\n // direction from instead of direction to\n this._lightDirection.negateInPlace();\n // set the values after calculating them\n if (this.directionalLight) {\n this.directionalLight.direction.copyFrom(this._lightDirection);\n this.directionalLight.intensity = Math.min(this._intensity, 1.0);\n this.directionalLight.diffuse.copyFrom(this._lightColor);\n }\n }\n }\n }\n}\n/**\n * The module's name\n */\nWebXRLightEstimation.Name = WebXRFeatureName.LIGHT_ESTIMATION;\n/**\n * The (Babylon) version of this module.\n * This is an integer representing the implementation version.\n * This number does not correspond to the WebXR specs version\n */\nWebXRLightEstimation.Version = 1;\n// register the plugin\nWebXRFeaturesManager.AddWebXRFeature(WebXRLightEstimation.Name, (xrSessionManager, options) => {\n return () => new WebXRLightEstimation(xrSessionManager, options);\n}, WebXRLightEstimation.Version, false);","map":{"version":3,"names":["WebGLHardwareTexture","InternalTexture","Observable","Tools","WebXRFeatureName","WebXRFeaturesManager","WebXRAbstractFeature","Color3","Vector3","DirectionalLight","BaseTexture","SphericalHarmonics","SphericalPolynomial","LightConstants","HDRFiltering","WebXRLightEstimation","constructor","_xrSessionManager","options","_canvasContext","_reflectionCubeMap","_xrLightEstimate","_xrLightProbe","_xrWebGLBinding","_lightDirection","Up","negateInPlace","_lightColor","White","_intensity","_sphericalHarmonics","_cubeMapPollTime","Date","now","_lightEstimationPollTime","_reflectionCubeMapTextureSize","directionalLight","onReflectionCubeMapUpdatedObservable","_updateReflectionCubeMap","cubeMapPollInterval","lp","_getXRGLBinding","getReflectionCubeMap","_texture","internalTexture","scene","getEngine","isCube","invertY","_useSRGBBuffer","reflectionFormat","format","generateMipMaps","type","samplingMode","width","height","_cachedWrapU","_cachedWrapV","_hardwareTexture","_getCanvasContext","_this$_reflectionCube","set","resetTextureCache","isReady","disablePreFiltering","removeEventListener","_hdrFilter","prefilter","then","markAllMaterialsAsDirty","notifyObservers","addEventListener","xrNativeFeatureName","createDirectionalLightSource","position","intensity","falloffType","FALLOFF_GLTF","Warn","reflectionCubeMapTexture","xrLightingEstimate","lightColor","lightDirection","lightIntensity","sphericalHarmonics","_gl","context","XRWebGLBinding","session","attach","_this$options$reflect","preferredReflectionFormat","requestLightProbe","xrLightProbe","disableCubeMapReflection","_isCube","coordinatesMode","setSceneEnvironmentTexture","environmentTexture","detach","detached","dispose","clear","_onXRFrame","_xrFrame","lightEstimationPollInterval","getLightEstimate","Math","max","primaryLightIntensity","x","y","z","rhsFactor","useRightHandedSystem","disableVectorReuse","direction","diffuse","copyFromFloats","primaryLightDirection","updateFromFloatsArray","sphericalHarmonicsCoefficients","disableSphericalPolynomial","_this$_reflectionCube2","sphericalPolynomial","updateFromHarmonics","copyFrom","min","Name","LIGHT_ESTIMATION","Version","AddWebXRFeature","xrSessionManager"],"sources":["F:/workspace/202226701027/huinongbao-app/node_modules/@babylonjs/core/XR/features/WebXRLightEstimation.js"],"sourcesContent":["import { WebGLHardwareTexture } from \"../../Engines/WebGL/webGLHardwareTexture.js\";\nimport { InternalTexture } from \"../../Materials/Textures/internalTexture.js\";\nimport { Observable } from \"../../Misc/observable.js\";\nimport { Tools } from \"../../Misc/tools.js\";\nimport { WebXRFeatureName, WebXRFeaturesManager } from \"../webXRFeaturesManager.js\";\nimport { WebXRAbstractFeature } from \"./WebXRAbstractFeature.js\";\n\nimport { Color3 } from \"../../Maths/math.color.js\";\nimport { Vector3 } from \"../../Maths/math.vector.js\";\nimport { DirectionalLight } from \"../../Lights/directionalLight.js\";\nimport { BaseTexture } from \"../../Materials/Textures/baseTexture.js\";\nimport { SphericalHarmonics, SphericalPolynomial } from \"../../Maths/sphericalPolynomial.js\";\nimport { LightConstants } from \"../../Lights/lightConstants.js\";\nimport { HDRFiltering } from \"../../Materials/Textures/Filtering/hdrFiltering.js\";\n/**\n * Light Estimation Feature\n *\n * @since 5.0.0\n */\nexport class WebXRLightEstimation extends WebXRAbstractFeature {\n /**\n * Creates a new instance of the light estimation feature\n * @param _xrSessionManager an instance of WebXRSessionManager\n * @param options options to use when constructing this feature\n */\n constructor(_xrSessionManager, \n /**\n * options to use when constructing this feature\n */\n options) {\n super(_xrSessionManager);\n this.options = options;\n this._canvasContext = null;\n this._reflectionCubeMap = null;\n this._xrLightEstimate = null;\n this._xrLightProbe = null;\n this._xrWebGLBinding = null;\n this._lightDirection = Vector3.Up().negateInPlace();\n this._lightColor = Color3.White();\n this._intensity = 1;\n this._sphericalHarmonics = new SphericalHarmonics();\n this._cubeMapPollTime = Date.now();\n this._lightEstimationPollTime = Date.now();\n /**\n * ARCore's reflection cube map size is 16x16.\n * Once other systems support this feature we will need to change this to be dynamic.\n * see https://github.com/immersive-web/lighting-estimation/blob/main/lighting-estimation-explainer.md#cube-map-open-questions\n */\n this._reflectionCubeMapTextureSize = 16;\n /**\n * If createDirectionalLightSource is set to true this light source will be created automatically.\n * Otherwise this can be set with an external directional light source.\n * This light will be updated whenever the light estimation values change.\n */\n this.directionalLight = null;\n /**\n * This observable will notify when the reflection cube map is updated.\n */\n this.onReflectionCubeMapUpdatedObservable = new Observable();\n /**\n * Event Listener for \"reflectionchange\" events.\n */\n this._updateReflectionCubeMap = () => {\n if (!this._xrLightProbe) {\n return;\n }\n // check poll time, do not update if it has not been long enough\n if (this.options.cubeMapPollInterval) {\n const now = Date.now();\n if (now - this._cubeMapPollTime < this.options.cubeMapPollInterval) {\n return;\n }\n this._cubeMapPollTime = now;\n }\n const lp = this._getXRGLBinding().getReflectionCubeMap(this._xrLightProbe);\n if (lp && this._reflectionCubeMap) {\n if (!this._reflectionCubeMap._texture) {\n const internalTexture = new InternalTexture(this._xrSessionManager.scene.getEngine(), 0 /* InternalTextureSource.Unknown */);\n internalTexture.isCube = true;\n internalTexture.invertY = false;\n internalTexture._useSRGBBuffer = this.options.reflectionFormat === \"srgba8\";\n internalTexture.format = 5;\n internalTexture.generateMipMaps = true;\n internalTexture.type = this.options.reflectionFormat !== \"srgba8\" ? 2 : 0;\n internalTexture.samplingMode = 3;\n internalTexture.width = this._reflectionCubeMapTextureSize;\n internalTexture.height = this._reflectionCubeMapTextureSize;\n internalTexture._cachedWrapU = 1;\n internalTexture._cachedWrapV = 1;\n internalTexture._hardwareTexture = new WebGLHardwareTexture(lp, this._getCanvasContext());\n this._reflectionCubeMap._texture = internalTexture;\n }\n else {\n this._reflectionCubeMap._texture._hardwareTexture?.set(lp);\n this._reflectionCubeMap._texture.getEngine().resetTextureCache();\n }\n this._reflectionCubeMap._texture.isReady = true;\n if (!this.options.disablePreFiltering) {\n this._xrLightProbe.removeEventListener(\"reflectionchange\", this._updateReflectionCubeMap);\n this._hdrFilter.prefilter(this._reflectionCubeMap).then(() => {\n this._xrSessionManager.scene.markAllMaterialsAsDirty(1);\n this.onReflectionCubeMapUpdatedObservable.notifyObservers(this._reflectionCubeMap);\n this._xrLightProbe.addEventListener(\"reflectionchange\", this._updateReflectionCubeMap);\n });\n }\n else {\n this._xrSessionManager.scene.markAllMaterialsAsDirty(1);\n this.onReflectionCubeMapUpdatedObservable.notifyObservers(this._reflectionCubeMap);\n }\n }\n };\n this.xrNativeFeatureName = \"light-estimation\";\n if (this.options.createDirectionalLightSource) {\n this.directionalLight = new DirectionalLight(\"light estimation directional\", this._lightDirection, this._xrSessionManager.scene);\n this.directionalLight.position = new Vector3(0, 8, 0);\n // intensity will be set later\n this.directionalLight.intensity = 0;\n this.directionalLight.falloffType = LightConstants.FALLOFF_GLTF;\n }\n this._hdrFilter = new HDRFiltering(this._xrSessionManager.scene.getEngine());\n // https://immersive-web.github.io/lighting-estimation/\n Tools.Warn(\"light-estimation is an experimental and unstable feature.\");\n }\n /**\n * While the estimated cube map is expected to update over time to better reflect the user's environment as they move around those changes are unlikely to happen with every XRFrame.\n * Since creating and processing the cube map is potentially expensive, especially if mip maps are needed, you can listen to the onReflectionCubeMapUpdatedObservable to determine\n * when it has been updated.\n */\n get reflectionCubeMapTexture() {\n return this._reflectionCubeMap;\n }\n /**\n * The most recent light estimate. Available starting on the first frame where the device provides a light probe.\n */\n get xrLightingEstimate() {\n if (this._xrLightEstimate) {\n return {\n lightColor: this._lightColor,\n lightDirection: this._lightDirection,\n lightIntensity: this._intensity,\n sphericalHarmonics: this._sphericalHarmonics,\n };\n }\n return this._xrLightEstimate;\n }\n _getCanvasContext() {\n if (this._canvasContext === null) {\n this._canvasContext = this._xrSessionManager.scene.getEngine()._gl;\n }\n return this._canvasContext;\n }\n _getXRGLBinding() {\n if (this._xrWebGLBinding === null) {\n const context = this._getCanvasContext();\n this._xrWebGLBinding = new XRWebGLBinding(this._xrSessionManager.session, context);\n }\n return this._xrWebGLBinding;\n }\n /**\n * attach this feature\n * Will usually be called by the features manager\n *\n * @returns true if successful.\n */\n attach() {\n if (!super.attach()) {\n return false;\n }\n const reflectionFormat = this.options.reflectionFormat ?? (this._xrSessionManager.session.preferredReflectionFormat || \"srgba8\");\n this.options.reflectionFormat = reflectionFormat;\n this._xrSessionManager.session\n .requestLightProbe({\n reflectionFormat,\n })\n .then((xrLightProbe) => {\n this._xrLightProbe = xrLightProbe;\n if (!this.options.disableCubeMapReflection) {\n if (!this._reflectionCubeMap) {\n this._reflectionCubeMap = new BaseTexture(this._xrSessionManager.scene);\n this._reflectionCubeMap._isCube = true;\n this._reflectionCubeMap.coordinatesMode = 3;\n if (this.options.setSceneEnvironmentTexture) {\n this._xrSessionManager.scene.environmentTexture = this._reflectionCubeMap;\n }\n }\n this._xrLightProbe.addEventListener(\"reflectionchange\", this._updateReflectionCubeMap);\n }\n });\n return true;\n }\n /**\n * detach this feature.\n * Will usually be called by the features manager\n *\n * @returns true if successful.\n */\n detach() {\n const detached = super.detach();\n if (this._xrLightProbe !== null && !this.options.disableCubeMapReflection) {\n this._xrLightProbe.removeEventListener(\"reflectionchange\", this._updateReflectionCubeMap);\n this._xrLightProbe = null;\n }\n this._canvasContext = null;\n this._xrLightEstimate = null;\n // When the session ends (on detach) we must clear our XRWebGLBinging instance, which references the ended session.\n this._xrWebGLBinding = null;\n return detached;\n }\n /**\n * Dispose this feature and all of the resources attached\n */\n dispose() {\n super.dispose();\n this.onReflectionCubeMapUpdatedObservable.clear();\n if (this.directionalLight) {\n this.directionalLight.dispose();\n this.directionalLight = null;\n }\n if (this._reflectionCubeMap !== null) {\n if (this._reflectionCubeMap._texture) {\n this._reflectionCubeMap._texture.dispose();\n }\n this._reflectionCubeMap.dispose();\n this._reflectionCubeMap = null;\n }\n }\n _onXRFrame(_xrFrame) {\n if (this._xrLightProbe !== null) {\n if (this.options.lightEstimationPollInterval) {\n const now = Date.now();\n if (now - this._lightEstimationPollTime < this.options.lightEstimationPollInterval) {\n return;\n }\n this._lightEstimationPollTime = now;\n }\n this._xrLightEstimate = _xrFrame.getLightEstimate(this._xrLightProbe);\n if (this._xrLightEstimate) {\n this._intensity = Math.max(1.0, this._xrLightEstimate.primaryLightIntensity.x, this._xrLightEstimate.primaryLightIntensity.y, this._xrLightEstimate.primaryLightIntensity.z);\n const rhsFactor = this._xrSessionManager.scene.useRightHandedSystem ? 1.0 : -1.0;\n // recreate the vector caches, so that the last one provided to the user will persist\n if (this.options.disableVectorReuse) {\n this._lightDirection = new Vector3();\n this._lightColor = new Color3();\n if (this.directionalLight) {\n this.directionalLight.direction = this._lightDirection;\n this.directionalLight.diffuse = this._lightColor;\n }\n }\n this._lightDirection.copyFromFloats(this._xrLightEstimate.primaryLightDirection.x, this._xrLightEstimate.primaryLightDirection.y, this._xrLightEstimate.primaryLightDirection.z * rhsFactor);\n this._lightColor.copyFromFloats(this._xrLightEstimate.primaryLightIntensity.x / this._intensity, this._xrLightEstimate.primaryLightIntensity.y / this._intensity, this._xrLightEstimate.primaryLightIntensity.z / this._intensity);\n this._sphericalHarmonics.updateFromFloatsArray(this._xrLightEstimate.sphericalHarmonicsCoefficients);\n if (this._reflectionCubeMap && !this.options.disableSphericalPolynomial) {\n this._reflectionCubeMap.sphericalPolynomial = this._reflectionCubeMap.sphericalPolynomial || new SphericalPolynomial();\n this._reflectionCubeMap.sphericalPolynomial?.updateFromHarmonics(this._sphericalHarmonics);\n }\n // direction from instead of direction to\n this._lightDirection.negateInPlace();\n // set the values after calculating them\n if (this.directionalLight) {\n this.directionalLight.direction.copyFrom(this._lightDirection);\n this.directionalLight.intensity = Math.min(this._intensity, 1.0);\n this.directionalLight.diffuse.copyFrom(this._lightColor);\n }\n }\n }\n }\n}\n/**\n * The module's name\n */\nWebXRLightEstimation.Name = WebXRFeatureName.LIGHT_ESTIMATION;\n/**\n * The (Babylon) version of this module.\n * This is an integer representing the implementation version.\n * This number does not correspond to the WebXR specs version\n */\nWebXRLightEstimation.Version = 1;\n// register the plugin\nWebXRFeaturesManager.AddWebXRFeature(WebXRLightEstimation.Name, (xrSessionManager, options) => {\n return () => new WebXRLightEstimation(xrSessionManager, options);\n}, WebXRLightEstimation.Version, 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