{"ast":null,"code":"import { __decorate } from \"../tslib.es6.js\";\nimport { serializeAsVector3, serialize, serializeAsMeshReference } from \"../Misc/decorators.js\";\nimport { Logger } from \"../Misc/logger.js\";\nimport { Vector2, Vector3, Matrix } from \"../Maths/math.vector.js\";\nimport { VertexBuffer } from \"../Buffers/buffer.js\";\nimport { AbstractMesh } from \"../Meshes/abstractMesh.js\";\nimport { Material } from \"../Materials/material.js\";\nimport { StandardMaterial } from \"../Materials/standardMaterial.js\";\nimport { Texture } from \"../Materials/Textures/texture.js\";\nimport { RenderTargetTexture } from \"../Materials/Textures/renderTargetTexture.js\";\nimport { PostProcess } from \"./postProcess.js\";\nimport { CreatePlane } from \"../Meshes/Builders/planeBuilder.js\";\nimport \"../Shaders/depth.vertex.js\";\nimport \"../Shaders/volumetricLightScattering.fragment.js\";\nimport \"../Shaders/volumetricLightScatteringPass.vertex.js\";\nimport \"../Shaders/volumetricLightScatteringPass.fragment.js\";\nimport { Color4, Color3 } from \"../Maths/math.color.js\";\nimport { Viewport } from \"../Maths/math.viewport.js\";\nimport { RegisterClass } from \"../Misc/typeStore.js\";\nimport { BindBonesParameters, BindMorphTargetParameters, PrepareAttributesForMorphTargetsInfluencers, PushAttributesForInstances } from \"../Materials/materialHelper.functions.js\";\nimport { EffectFallbacks } from \"../Materials/effectFallbacks.js\";\n/**\n *  Inspired by https://developer.nvidia.com/gpugems/gpugems3/part-ii-light-and-shadows/chapter-13-volumetric-light-scattering-post-process\n */\nexport class VolumetricLightScatteringPostProcess extends PostProcess {\n  /**\n   * @internal\n   * VolumetricLightScatteringPostProcess.useDiffuseColor is no longer used, use the mesh material directly instead\n   */\n  get useDiffuseColor() {\n    Logger.Warn(\"VolumetricLightScatteringPostProcess.useDiffuseColor is no longer used, use the mesh material directly instead\");\n    return false;\n  }\n  set useDiffuseColor(useDiffuseColor) {\n    Logger.Warn(\"VolumetricLightScatteringPostProcess.useDiffuseColor is no longer used, use the mesh material directly instead\");\n  }\n  /**\n   * @constructor\n   * @param name The post-process name\n   * @param ratio The size of the post-process and/or internal pass (0.5 means that your postprocess will have a width = canvas.width 0.5 and a height = canvas.height 0.5)\n   * @param camera The camera that the post-process will be attached to\n   * @param mesh The mesh used to create the light scattering\n   * @param samples The post-process quality, default 100\n   * @param samplingMode The post-process filtering mode\n   * @param engine The babylon engine\n   * @param reusable If the post-process is reusable\n   * @param scene The constructor needs a scene reference to initialize internal components. If \"camera\" is null a \"scene\" must be provided\n   */\n  constructor(name, ratio, camera, mesh, samples = 100, samplingMode = Texture.BILINEAR_SAMPLINGMODE, engine, reusable, scene) {\n    var _ref, _camera$getScene;\n    super(name, \"volumetricLightScattering\", [\"decay\", \"exposure\", \"weight\", \"meshPositionOnScreen\", \"density\"], [\"lightScatteringSampler\"], ratio.postProcessRatio || ratio, camera, samplingMode, engine, reusable, \"#define NUM_SAMPLES \" + samples);\n    this._screenCoordinates = Vector2.Zero();\n    /**\n     * Custom position of the mesh. Used if \"useCustomMeshPosition\" is set to \"true\"\n     */\n    this.customMeshPosition = Vector3.Zero();\n    /**\n     * Set if the post-process should use a custom position for the light source (true) or the internal mesh position (false)\n     */\n    this.useCustomMeshPosition = false;\n    /**\n     * If the post-process should inverse the light scattering direction\n     */\n    this.invert = true;\n    /**\n     * Array containing the excluded meshes not rendered in the internal pass\n     */\n    this.excludedMeshes = [];\n    /**\n     * Array containing the only meshes rendered in the internal pass.\n     * If this array is not empty, only the meshes from this array are rendered in the internal pass\n     */\n    this.includedMeshes = [];\n    /**\n     * Controls the overall intensity of the post-process\n     */\n    this.exposure = 0.3;\n    /**\n     * Dissipates each sample's contribution in range [0, 1]\n     */\n    this.decay = 0.96815;\n    /**\n     * Controls the overall intensity of each sample\n     */\n    this.weight = 0.58767;\n    /**\n     * Controls the density of each sample\n     */\n    this.density = 0.926;\n    scene = (_ref = (_camera$getScene = camera === null || camera === void 0 ? void 0 : camera.getScene()) !== null && _camera$getScene !== void 0 ? _camera$getScene : scene) !== null && _ref !== void 0 ? _ref : this._scene; // parameter \"scene\" can be null.\n    engine = scene.getEngine();\n    this._viewPort = new Viewport(0, 0, 1, 1).toGlobal(engine.getRenderWidth(), engine.getRenderHeight());\n    // Configure mesh\n    this.mesh = mesh !== null && mesh !== void 0 ? mesh : VolumetricLightScatteringPostProcess.CreateDefaultMesh(\"VolumetricLightScatteringMesh\", scene);\n    // Configure\n    this._createPass(scene, ratio.passRatio || ratio);\n    this.onActivate = camera => {\n      if (!this.isSupported) {\n        this.dispose(camera);\n      }\n      this.onActivate = null;\n    };\n    this.onApplyObservable.add(effect => {\n      this._updateMeshScreenCoordinates(scene);\n      effect.setTexture(\"lightScatteringSampler\", this._volumetricLightScatteringRTT);\n      effect.setFloat(\"exposure\", this.exposure);\n      effect.setFloat(\"decay\", this.decay);\n      effect.setFloat(\"weight\", this.weight);\n      effect.setFloat(\"density\", this.density);\n      effect.setVector2(\"meshPositionOnScreen\", this._screenCoordinates);\n    });\n  }\n  /**\n   * Returns the string \"VolumetricLightScatteringPostProcess\"\n   * @returns \"VolumetricLightScatteringPostProcess\"\n   */\n  getClassName() {\n    return \"VolumetricLightScatteringPostProcess\";\n  }\n  _isReady(subMesh, useInstances) {\n    var _mesh$_internalAbstra;\n    const mesh = subMesh.getMesh();\n    // Render this.mesh as default\n    if (mesh === this.mesh && mesh.material) {\n      return mesh.material.isReady(mesh);\n    }\n    const renderingMaterial = (_mesh$_internalAbstra = mesh._internalAbstractMeshDataInfo._materialForRenderPass) === null || _mesh$_internalAbstra === void 0 ? void 0 : _mesh$_internalAbstra[this._scene.getEngine().currentRenderPassId];\n    if (renderingMaterial) {\n      return renderingMaterial.isReadyForSubMesh(mesh, subMesh, useInstances);\n    }\n    const defines = [];\n    const attribs = [VertexBuffer.PositionKind];\n    const material = subMesh.getMaterial();\n    // Alpha test\n    if (material) {\n      if (material.needAlphaTesting()) {\n        defines.push(\"#define ALPHATEST\");\n      }\n      if (mesh.isVerticesDataPresent(VertexBuffer.UVKind)) {\n        attribs.push(VertexBuffer.UVKind);\n        defines.push(\"#define UV1\");\n      }\n      if (mesh.isVerticesDataPresent(VertexBuffer.UV2Kind)) {\n        attribs.push(VertexBuffer.UV2Kind);\n        defines.push(\"#define UV2\");\n      }\n    }\n    // Bones\n    const fallbacks = new EffectFallbacks();\n    if (mesh.useBones && mesh.computeBonesUsingShaders && mesh.skeleton) {\n      attribs.push(VertexBuffer.MatricesIndicesKind);\n      attribs.push(VertexBuffer.MatricesWeightsKind);\n      if (mesh.numBoneInfluencers > 4) {\n        attribs.push(VertexBuffer.MatricesIndicesExtraKind);\n        attribs.push(VertexBuffer.MatricesWeightsExtraKind);\n      }\n      defines.push(\"#define NUM_BONE_INFLUENCERS \" + mesh.numBoneInfluencers);\n      if (mesh.numBoneInfluencers > 0) {\n        fallbacks.addCPUSkinningFallback(0, mesh);\n      }\n      const skeleton = mesh.skeleton;\n      if (skeleton.isUsingTextureForMatrices) {\n        defines.push(\"#define BONETEXTURE\");\n      } else {\n        defines.push(\"#define BonesPerMesh \" + (skeleton.bones.length + 1));\n      }\n    } else {\n      defines.push(\"#define NUM_BONE_INFLUENCERS 0\");\n    }\n    // Morph targets\n    const morphTargetManager = mesh.morphTargetManager;\n    let numMorphInfluencers = 0;\n    if (morphTargetManager) {\n      numMorphInfluencers = morphTargetManager.numMaxInfluencers || morphTargetManager.numInfluencers;\n      if (numMorphInfluencers > 0) {\n        defines.push(\"#define MORPHTARGETS\");\n        defines.push(\"#define NUM_MORPH_INFLUENCERS \" + numMorphInfluencers);\n        if (morphTargetManager.isUsingTextureForTargets) {\n          defines.push(\"#define MORPHTARGETS_TEXTURE\");\n        }\n        PrepareAttributesForMorphTargetsInfluencers(attribs, mesh, numMorphInfluencers);\n      }\n    }\n    // Instances\n    if (useInstances) {\n      defines.push(\"#define INSTANCES\");\n      PushAttributesForInstances(attribs);\n      if (subMesh.getRenderingMesh().hasThinInstances) {\n        defines.push(\"#define THIN_INSTANCES\");\n      }\n    }\n    // Baked vertex animations\n    const bvaManager = mesh.bakedVertexAnimationManager;\n    if (bvaManager && bvaManager.isEnabled) {\n      defines.push(\"#define BAKED_VERTEX_ANIMATION_TEXTURE\");\n      if (useInstances) {\n        attribs.push(\"bakedVertexAnimationSettingsInstanced\");\n      }\n    }\n    // Get correct effect\n    const drawWrapper = subMesh._getDrawWrapper(undefined, true);\n    const cachedDefines = drawWrapper.defines;\n    const join = defines.join(\"\\n\");\n    if (cachedDefines !== join) {\n      const uniforms = [\"world\", \"mBones\", \"boneTextureWidth\", \"viewProjection\", \"diffuseMatrix\", \"morphTargetInfluences\", \"morphTargetCount\", \"morphTargetTextureInfo\", \"morphTargetTextureIndices\", \"bakedVertexAnimationSettings\", \"bakedVertexAnimationTextureSizeInverted\", \"bakedVertexAnimationTime\", \"bakedVertexAnimationTexture\"];\n      const samplers = [\"diffuseSampler\", \"morphTargets\", \"boneSampler\", \"bakedVertexAnimationTexture\"];\n      drawWrapper.setEffect(mesh.getScene().getEngine().createEffect(\"volumetricLightScatteringPass\", {\n        attributes: attribs,\n        uniformsNames: uniforms,\n        uniformBuffersNames: [],\n        samplers: samplers,\n        defines: join,\n        fallbacks: fallbacks,\n        onCompiled: null,\n        onError: null,\n        indexParameters: {\n          maxSimultaneousMorphTargets: numMorphInfluencers\n        }\n      }, mesh.getScene().getEngine()), join);\n    }\n    return drawWrapper.effect.isReady();\n  }\n  /**\n   * Sets the new light position for light scattering effect\n   * @param position The new custom light position\n   */\n  setCustomMeshPosition(position) {\n    this.customMeshPosition = position;\n  }\n  /**\n   * Returns the light position for light scattering effect\n   * @returns Vector3 The custom light position\n   */\n  getCustomMeshPosition() {\n    return this.customMeshPosition;\n  }\n  /**\n   * Disposes the internal assets and detaches the post-process from the camera\n   * @param camera The camera from which to detach the post-process\n   */\n  dispose(camera) {\n    const rttIndex = camera.getScene().customRenderTargets.indexOf(this._volumetricLightScatteringRTT);\n    if (rttIndex !== -1) {\n      camera.getScene().customRenderTargets.splice(rttIndex, 1);\n    }\n    this._volumetricLightScatteringRTT.dispose();\n    super.dispose(camera);\n  }\n  /**\n   * Returns the render target texture used by the post-process\n   * @returns the render target texture used by the post-process\n   */\n  getPass() {\n    return this._volumetricLightScatteringRTT;\n  }\n  // Private methods\n  _meshExcluded(mesh) {\n    if (this.includedMeshes.length > 0 && this.includedMeshes.indexOf(mesh) === -1 || this.excludedMeshes.length > 0 && this.excludedMeshes.indexOf(mesh) !== -1) {\n      return true;\n    }\n    return false;\n  }\n  _createPass(scene, ratio) {\n    const engine = scene.getEngine();\n    this._volumetricLightScatteringRTT = new RenderTargetTexture(\"volumetricLightScatteringMap\", {\n      width: engine.getRenderWidth() * ratio,\n      height: engine.getRenderHeight() * ratio\n    }, scene, false, true, 0);\n    this._volumetricLightScatteringRTT.wrapU = Texture.CLAMP_ADDRESSMODE;\n    this._volumetricLightScatteringRTT.wrapV = Texture.CLAMP_ADDRESSMODE;\n    this._volumetricLightScatteringRTT.renderList = null;\n    this._volumetricLightScatteringRTT.renderParticles = false;\n    this._volumetricLightScatteringRTT.ignoreCameraViewport = true;\n    const camera = this.getCamera();\n    if (camera) {\n      camera.customRenderTargets.push(this._volumetricLightScatteringRTT);\n    } else {\n      scene.customRenderTargets.push(this._volumetricLightScatteringRTT);\n    }\n    // Custom render function for submeshes\n    const renderSubMesh = subMesh => {\n      const renderingMesh = subMesh.getRenderingMesh();\n      const effectiveMesh = subMesh.getEffectiveMesh();\n      if (this._meshExcluded(renderingMesh)) {\n        return;\n      }\n      effectiveMesh._internalAbstractMeshDataInfo._isActiveIntermediate = false;\n      const material = subMesh.getMaterial();\n      if (!material) {\n        return;\n      }\n      const scene = renderingMesh.getScene();\n      const engine = scene.getEngine();\n      // Culling\n      engine.setState(material.backFaceCulling, undefined, undefined, undefined, material.cullBackFaces);\n      // Managing instances\n      const batch = renderingMesh._getInstancesRenderList(subMesh._id, !!subMesh.getReplacementMesh());\n      if (batch.mustReturn) {\n        return;\n      }\n      const hardwareInstancedRendering = engine.getCaps().instancedArrays && (batch.visibleInstances[subMesh._id] !== null || renderingMesh.hasThinInstances);\n      if (this._isReady(subMesh, hardwareInstancedRendering)) {\n        var _effectiveMesh$_inter;\n        const renderingMaterial = (_effectiveMesh$_inter = effectiveMesh._internalAbstractMeshDataInfo._materialForRenderPass) === null || _effectiveMesh$_inter === void 0 ? void 0 : _effectiveMesh$_inter[engine.currentRenderPassId];\n        let drawWrapper = subMesh._getDrawWrapper();\n        if (renderingMesh === this.mesh && !drawWrapper) {\n          drawWrapper = material._getDrawWrapper();\n        }\n        if (!drawWrapper) {\n          return;\n        }\n        const effect = drawWrapper.effect;\n        engine.enableEffect(drawWrapper);\n        if (!hardwareInstancedRendering) {\n          renderingMesh._bind(subMesh, effect, material.fillMode);\n        }\n        if (renderingMesh === this.mesh) {\n          material.bind(effectiveMesh.getWorldMatrix(), renderingMesh);\n        } else if (renderingMaterial) {\n          renderingMaterial.bindForSubMesh(effectiveMesh.getWorldMatrix(), effectiveMesh, subMesh);\n        } else {\n          effect.setMatrix(\"viewProjection\", scene.getTransformMatrix());\n          // Alpha test\n          if (material.needAlphaTesting()) {\n            const alphaTexture = material.getAlphaTestTexture();\n            if (alphaTexture) {\n              effect.setTexture(\"diffuseSampler\", alphaTexture);\n              effect.setMatrix(\"diffuseMatrix\", alphaTexture.getTextureMatrix());\n            }\n          }\n          // Bones\n          BindBonesParameters(renderingMesh, effect);\n          // Morph targets\n          BindMorphTargetParameters(renderingMesh, effect);\n          if (renderingMesh.morphTargetManager && renderingMesh.morphTargetManager.isUsingTextureForTargets) {\n            renderingMesh.morphTargetManager._bind(effect);\n          }\n          // Baked vertex animations\n          const bvaManager = subMesh.getMesh().bakedVertexAnimationManager;\n          if (bvaManager && bvaManager.isEnabled) {\n            bvaManager.bind(effect, hardwareInstancedRendering);\n          }\n        }\n        if (hardwareInstancedRendering && renderingMesh.hasThinInstances) {\n          effect.setMatrix(\"world\", effectiveMesh.getWorldMatrix());\n        }\n        // Draw\n        renderingMesh._processRendering(effectiveMesh, subMesh, effect, Material.TriangleFillMode, batch, hardwareInstancedRendering, (isInstance, world) => {\n          if (!isInstance) {\n            effect.setMatrix(\"world\", world);\n          }\n        });\n      }\n    };\n    // Render target texture callbacks\n    let savedSceneClearColor;\n    const sceneClearColor = new Color4(0.0, 0.0, 0.0, 1.0);\n    this._volumetricLightScatteringRTT.onBeforeRenderObservable.add(() => {\n      savedSceneClearColor = scene.clearColor;\n      scene.clearColor = sceneClearColor;\n    });\n    this._volumetricLightScatteringRTT.onAfterRenderObservable.add(() => {\n      scene.clearColor = savedSceneClearColor;\n    });\n    this._volumetricLightScatteringRTT.customIsReadyFunction = (mesh, refreshRate, preWarm) => {\n      if ((preWarm || refreshRate === 0) && mesh.subMeshes) {\n        for (let i = 0; i < mesh.subMeshes.length; ++i) {\n          const subMesh = mesh.subMeshes[i];\n          const material = subMesh.getMaterial();\n          const renderingMesh = subMesh.getRenderingMesh();\n          if (!material) {\n            continue;\n          }\n          const batch = renderingMesh._getInstancesRenderList(subMesh._id, !!subMesh.getReplacementMesh());\n          const hardwareInstancedRendering = engine.getCaps().instancedArrays && (batch.visibleInstances[subMesh._id] !== null || renderingMesh.hasThinInstances);\n          if (!this._isReady(subMesh, hardwareInstancedRendering)) {\n            return false;\n          }\n        }\n      }\n      return true;\n    };\n    this._volumetricLightScatteringRTT.customRenderFunction = (opaqueSubMeshes, alphaTestSubMeshes, transparentSubMeshes, depthOnlySubMeshes) => {\n      const engine = scene.getEngine();\n      let index;\n      if (depthOnlySubMeshes.length) {\n        engine.setColorWrite(false);\n        for (index = 0; index < depthOnlySubMeshes.length; index++) {\n          renderSubMesh(depthOnlySubMeshes.data[index]);\n        }\n        engine.setColorWrite(true);\n      }\n      for (index = 0; index < opaqueSubMeshes.length; index++) {\n        renderSubMesh(opaqueSubMeshes.data[index]);\n      }\n      for (index = 0; index < alphaTestSubMeshes.length; index++) {\n        renderSubMesh(alphaTestSubMeshes.data[index]);\n      }\n      if (transparentSubMeshes.length) {\n        // Sort sub meshes\n        for (index = 0; index < transparentSubMeshes.length; index++) {\n          const submesh = transparentSubMeshes.data[index];\n          const boundingInfo = submesh.getBoundingInfo();\n          if (boundingInfo && scene.activeCamera) {\n            submesh._alphaIndex = submesh.getMesh().alphaIndex;\n            submesh._distanceToCamera = boundingInfo.boundingSphere.centerWorld.subtract(scene.activeCamera.position).length();\n          }\n        }\n        const sortedArray = transparentSubMeshes.data.slice(0, transparentSubMeshes.length);\n        sortedArray.sort((a, b) => {\n          // Alpha index first\n          if (a._alphaIndex > b._alphaIndex) {\n            return 1;\n          }\n          if (a._alphaIndex < b._alphaIndex) {\n            return -1;\n          }\n          // Then distance to camera\n          if (a._distanceToCamera < b._distanceToCamera) {\n            return 1;\n          }\n          if (a._distanceToCamera > b._distanceToCamera) {\n            return -1;\n          }\n          return 0;\n        });\n        // Render sub meshes\n        engine.setAlphaMode(2);\n        for (index = 0; index < sortedArray.length; index++) {\n          renderSubMesh(sortedArray[index]);\n        }\n        engine.setAlphaMode(0);\n      }\n    };\n  }\n  _updateMeshScreenCoordinates(scene) {\n    const transform = scene.getTransformMatrix();\n    let meshPosition;\n    if (this.useCustomMeshPosition) {\n      meshPosition = this.customMeshPosition;\n    } else if (this.attachedNode) {\n      meshPosition = this.attachedNode.position;\n    } else {\n      meshPosition = this.mesh.parent ? this.mesh.getAbsolutePosition() : this.mesh.position;\n    }\n    const pos = Vector3.Project(meshPosition, Matrix.Identity(), transform, this._viewPort);\n    this._screenCoordinates.x = pos.x / this._viewPort.width;\n    this._screenCoordinates.y = pos.y / this._viewPort.height;\n    if (this.invert) {\n      this._screenCoordinates.y = 1.0 - this._screenCoordinates.y;\n    }\n  }\n  // Static methods\n  /**\n   * Creates a default mesh for the Volumeric Light Scattering post-process\n   * @param name The mesh name\n   * @param scene The scene where to create the mesh\n   * @returns the default mesh\n   */\n  static CreateDefaultMesh(name, scene) {\n    const mesh = CreatePlane(name, {\n      size: 1\n    }, scene);\n    mesh.billboardMode = AbstractMesh.BILLBOARDMODE_ALL;\n    const material = new StandardMaterial(name + \"Material\", scene);\n    material.emissiveColor = new Color3(1, 1, 1);\n    mesh.material = material;\n    return mesh;\n  }\n}\n__decorate([serializeAsVector3()], VolumetricLightScatteringPostProcess.prototype, \"customMeshPosition\", void 0);\n__decorate([serialize()], VolumetricLightScatteringPostProcess.prototype, \"useCustomMeshPosition\", void 0);\n__decorate([serialize()], VolumetricLightScatteringPostProcess.prototype, \"invert\", void 0);\n__decorate([serializeAsMeshReference()], VolumetricLightScatteringPostProcess.prototype, \"mesh\", void 0);\n__decorate([serialize()], VolumetricLightScatteringPostProcess.prototype, \"excludedMeshes\", void 0);\n__decorate([serialize()], VolumetricLightScatteringPostProcess.prototype, \"includedMeshes\", void 0);\n__decorate([serialize()], VolumetricLightScatteringPostProcess.prototype, \"exposure\", void 0);\n__decorate([serialize()], VolumetricLightScatteringPostProcess.prototype, \"decay\", void 0);\n__decorate([serialize()], VolumetricLightScatteringPostProcess.prototype, \"weight\", void 0);\n__decorate([serialize()], VolumetricLightScatteringPostProcess.prototype, \"density\", void 0);\nRegisterClass(\"BABYLON.VolumetricLightScatteringPostProcess\", VolumetricLightScatteringPostProcess);","map":{"version":3,"names":["__decorate","serializeAsVector3","serialize","serializeAsMeshReference","Logger","Vector2","Vector3","Matrix","VertexBuffer","AbstractMesh","Material","StandardMaterial","Texture","RenderTargetTexture","PostProcess","CreatePlane","Color4","Color3","Viewport","RegisterClass","BindBonesParameters","BindMorphTargetParameters","PrepareAttributesForMorphTargetsInfluencers","PushAttributesForInstances","EffectFallbacks","VolumetricLightScatteringPostProcess","useDiffuseColor","Warn","constructor","name","ratio","camera","mesh","samples","samplingMode","BILINEAR_SAMPLINGMODE","engine","reusable","scene","_ref","_camera$getScene","postProcessRatio","_screenCoordinates","Zero","customMeshPosition","useCustomMeshPosition","invert","excludedMeshes","includedMeshes","exposure","decay","weight","density","getScene","_scene","getEngine","_viewPort","toGlobal","getRenderWidth","getRenderHeight","CreateDefaultMesh","_createPass","passRatio","onActivate","isSupported","dispose","onApplyObservable","add","effect","_updateMeshScreenCoordinates","setTexture","_volumetricLightScatteringRTT","setFloat","setVector2","getClassName","_isReady","subMesh","useInstances","_mesh$_internalAbstra","getMesh","material","isReady","renderingMaterial","_internalAbstractMeshDataInfo","_materialForRenderPass","currentRenderPassId","isReadyForSubMesh","defines","attribs","PositionKind","getMaterial","needAlphaTesting","push","isVerticesDataPresent","UVKind","UV2Kind","fallbacks","useBones","computeBonesUsingShaders","skeleton","MatricesIndicesKind","MatricesWeightsKind","numBoneInfluencers","MatricesIndicesExtraKind","MatricesWeightsExtraKind","addCPUSkinningFallback","isUsingTextureForMatrices","bones","length","morphTargetManager","numMorphInfluencers","numMaxInfluencers","numInfluencers","isUsingTextureForTargets","getRenderingMesh","hasThinInstances","bvaManager","bakedVertexAnimationManager","isEnabled","drawWrapper","_getDrawWrapper","undefined","cachedDefines","join","uniforms","samplers","setEffect","createEffect","attributes","uniformsNames","uniformBuffersNames","onCompiled","onError","indexParameters","maxSimultaneousMorphTargets","setCustomMeshPosition","position","getCustomMeshPosition","rttIndex","customRenderTargets","indexOf","splice","getPass","_meshExcluded","width","height","wrapU","CLAMP_ADDRESSMODE","wrapV","renderList","renderParticles","ignoreCameraViewport","getCamera","renderSubMesh","renderingMesh","effectiveMesh","getEffectiveMesh","_isActiveIntermediate","setState","backFaceCulling","cullBackFaces","batch","_getInstancesRenderList","_id","getReplacementMesh","mustReturn","hardwareInstancedRendering","getCaps","instancedArrays","visibleInstances","_effectiveMesh$_inter","enableEffect","_bind","fillMode","bind","getWorldMatrix","bindForSubMesh","setMatrix","getTransformMatrix","alphaTexture","getAlphaTestTexture","getTextureMatrix","_processRendering","TriangleFillMode","isInstance","world","savedSceneClearColor","sceneClearColor","onBeforeRenderObservable","clearColor","onAfterRenderObservable","customIsReadyFunction","refreshRate","preWarm","subMeshes","i","customRenderFunction","opaqueSubMeshes","alphaTestSubMeshes","transparentSubMeshes","depthOnlySubMeshes","index","setColorWrite","data","submesh","boundingInfo","getBoundingInfo","activeCamera","_alphaIndex","alphaIndex","_distanceToCamera","boundingSphere","centerWorld","subtract","sortedArray","slice","sort","a","b","setAlphaMode","transform","meshPosition","attachedNode","parent","getAbsolutePosition","pos","Project","Identity","x","y","size","billboardMode","BILLBOARDMODE_ALL","emissiveColor","prototype"],"sources":["F:/workspace/202226701027/huinongbao-app/node_modules/@babylonjs/core/PostProcesses/volumetricLightScatteringPostProcess.js"],"sourcesContent":["import { __decorate } from \"../tslib.es6.js\";\nimport { serializeAsVector3, serialize, serializeAsMeshReference } from \"../Misc/decorators.js\";\nimport { Logger } from \"../Misc/logger.js\";\nimport { Vector2, Vector3, Matrix } from \"../Maths/math.vector.js\";\nimport { VertexBuffer } from \"../Buffers/buffer.js\";\nimport { AbstractMesh } from \"../Meshes/abstractMesh.js\";\nimport { Material } from \"../Materials/material.js\";\nimport { StandardMaterial } from \"../Materials/standardMaterial.js\";\nimport { Texture } from \"../Materials/Textures/texture.js\";\nimport { RenderTargetTexture } from \"../Materials/Textures/renderTargetTexture.js\";\nimport { PostProcess } from \"./postProcess.js\";\n\nimport { CreatePlane } from \"../Meshes/Builders/planeBuilder.js\";\nimport \"../Shaders/depth.vertex.js\";\nimport \"../Shaders/volumetricLightScattering.fragment.js\";\nimport \"../Shaders/volumetricLightScatteringPass.vertex.js\";\nimport \"../Shaders/volumetricLightScatteringPass.fragment.js\";\nimport { Color4, Color3 } from \"../Maths/math.color.js\";\nimport { Viewport } from \"../Maths/math.viewport.js\";\nimport { RegisterClass } from \"../Misc/typeStore.js\";\nimport { BindBonesParameters, BindMorphTargetParameters, PrepareAttributesForMorphTargetsInfluencers, PushAttributesForInstances } from \"../Materials/materialHelper.functions.js\";\nimport { EffectFallbacks } from \"../Materials/effectFallbacks.js\";\n/**\n *  Inspired by https://developer.nvidia.com/gpugems/gpugems3/part-ii-light-and-shadows/chapter-13-volumetric-light-scattering-post-process\n */\nexport class VolumetricLightScatteringPostProcess extends PostProcess {\n    /**\n     * @internal\n     * VolumetricLightScatteringPostProcess.useDiffuseColor is no longer used, use the mesh material directly instead\n     */\n    get useDiffuseColor() {\n        Logger.Warn(\"VolumetricLightScatteringPostProcess.useDiffuseColor is no longer used, use the mesh material directly instead\");\n        return false;\n    }\n    set useDiffuseColor(useDiffuseColor) {\n        Logger.Warn(\"VolumetricLightScatteringPostProcess.useDiffuseColor is no longer used, use the mesh material directly instead\");\n    }\n    /**\n     * @constructor\n     * @param name The post-process name\n     * @param ratio The size of the post-process and/or internal pass (0.5 means that your postprocess will have a width = canvas.width 0.5 and a height = canvas.height 0.5)\n     * @param camera The camera that the post-process will be attached to\n     * @param mesh The mesh used to create the light scattering\n     * @param samples The post-process quality, default 100\n     * @param samplingMode The post-process filtering mode\n     * @param engine The babylon engine\n     * @param reusable If the post-process is reusable\n     * @param scene The constructor needs a scene reference to initialize internal components. If \"camera\" is null a \"scene\" must be provided\n     */\n    constructor(name, ratio, camera, mesh, samples = 100, samplingMode = Texture.BILINEAR_SAMPLINGMODE, engine, reusable, scene) {\n        super(name, \"volumetricLightScattering\", [\"decay\", \"exposure\", \"weight\", \"meshPositionOnScreen\", \"density\"], [\"lightScatteringSampler\"], ratio.postProcessRatio || ratio, camera, samplingMode, engine, reusable, \"#define NUM_SAMPLES \" + samples);\n        this._screenCoordinates = Vector2.Zero();\n        /**\n         * Custom position of the mesh. Used if \"useCustomMeshPosition\" is set to \"true\"\n         */\n        this.customMeshPosition = Vector3.Zero();\n        /**\n         * Set if the post-process should use a custom position for the light source (true) or the internal mesh position (false)\n         */\n        this.useCustomMeshPosition = false;\n        /**\n         * If the post-process should inverse the light scattering direction\n         */\n        this.invert = true;\n        /**\n         * Array containing the excluded meshes not rendered in the internal pass\n         */\n        this.excludedMeshes = [];\n        /**\n         * Array containing the only meshes rendered in the internal pass.\n         * If this array is not empty, only the meshes from this array are rendered in the internal pass\n         */\n        this.includedMeshes = [];\n        /**\n         * Controls the overall intensity of the post-process\n         */\n        this.exposure = 0.3;\n        /**\n         * Dissipates each sample's contribution in range [0, 1]\n         */\n        this.decay = 0.96815;\n        /**\n         * Controls the overall intensity of each sample\n         */\n        this.weight = 0.58767;\n        /**\n         * Controls the density of each sample\n         */\n        this.density = 0.926;\n        scene = camera?.getScene() ?? scene ?? this._scene; // parameter \"scene\" can be null.\n        engine = scene.getEngine();\n        this._viewPort = new Viewport(0, 0, 1, 1).toGlobal(engine.getRenderWidth(), engine.getRenderHeight());\n        // Configure mesh\n        this.mesh = mesh ?? VolumetricLightScatteringPostProcess.CreateDefaultMesh(\"VolumetricLightScatteringMesh\", scene);\n        // Configure\n        this._createPass(scene, ratio.passRatio || ratio);\n        this.onActivate = (camera) => {\n            if (!this.isSupported) {\n                this.dispose(camera);\n            }\n            this.onActivate = null;\n        };\n        this.onApplyObservable.add((effect) => {\n            this._updateMeshScreenCoordinates(scene);\n            effect.setTexture(\"lightScatteringSampler\", this._volumetricLightScatteringRTT);\n            effect.setFloat(\"exposure\", this.exposure);\n            effect.setFloat(\"decay\", this.decay);\n            effect.setFloat(\"weight\", this.weight);\n            effect.setFloat(\"density\", this.density);\n            effect.setVector2(\"meshPositionOnScreen\", this._screenCoordinates);\n        });\n    }\n    /**\n     * Returns the string \"VolumetricLightScatteringPostProcess\"\n     * @returns \"VolumetricLightScatteringPostProcess\"\n     */\n    getClassName() {\n        return \"VolumetricLightScatteringPostProcess\";\n    }\n    _isReady(subMesh, useInstances) {\n        const mesh = subMesh.getMesh();\n        // Render this.mesh as default\n        if (mesh === this.mesh && mesh.material) {\n            return mesh.material.isReady(mesh);\n        }\n        const renderingMaterial = mesh._internalAbstractMeshDataInfo._materialForRenderPass?.[this._scene.getEngine().currentRenderPassId];\n        if (renderingMaterial) {\n            return renderingMaterial.isReadyForSubMesh(mesh, subMesh, useInstances);\n        }\n        const defines = [];\n        const attribs = [VertexBuffer.PositionKind];\n        const material = subMesh.getMaterial();\n        // Alpha test\n        if (material) {\n            if (material.needAlphaTesting()) {\n                defines.push(\"#define ALPHATEST\");\n            }\n            if (mesh.isVerticesDataPresent(VertexBuffer.UVKind)) {\n                attribs.push(VertexBuffer.UVKind);\n                defines.push(\"#define UV1\");\n            }\n            if (mesh.isVerticesDataPresent(VertexBuffer.UV2Kind)) {\n                attribs.push(VertexBuffer.UV2Kind);\n                defines.push(\"#define UV2\");\n            }\n        }\n        // Bones\n        const fallbacks = new EffectFallbacks();\n        if (mesh.useBones && mesh.computeBonesUsingShaders && mesh.skeleton) {\n            attribs.push(VertexBuffer.MatricesIndicesKind);\n            attribs.push(VertexBuffer.MatricesWeightsKind);\n            if (mesh.numBoneInfluencers > 4) {\n                attribs.push(VertexBuffer.MatricesIndicesExtraKind);\n                attribs.push(VertexBuffer.MatricesWeightsExtraKind);\n            }\n            defines.push(\"#define NUM_BONE_INFLUENCERS \" + mesh.numBoneInfluencers);\n            if (mesh.numBoneInfluencers > 0) {\n                fallbacks.addCPUSkinningFallback(0, mesh);\n            }\n            const skeleton = mesh.skeleton;\n            if (skeleton.isUsingTextureForMatrices) {\n                defines.push(\"#define BONETEXTURE\");\n            }\n            else {\n                defines.push(\"#define BonesPerMesh \" + (skeleton.bones.length + 1));\n            }\n        }\n        else {\n            defines.push(\"#define NUM_BONE_INFLUENCERS 0\");\n        }\n        // Morph targets\n        const morphTargetManager = mesh.morphTargetManager;\n        let numMorphInfluencers = 0;\n        if (morphTargetManager) {\n            numMorphInfluencers = morphTargetManager.numMaxInfluencers || morphTargetManager.numInfluencers;\n            if (numMorphInfluencers > 0) {\n                defines.push(\"#define MORPHTARGETS\");\n                defines.push(\"#define NUM_MORPH_INFLUENCERS \" + numMorphInfluencers);\n                if (morphTargetManager.isUsingTextureForTargets) {\n                    defines.push(\"#define MORPHTARGETS_TEXTURE\");\n                }\n                PrepareAttributesForMorphTargetsInfluencers(attribs, mesh, numMorphInfluencers);\n            }\n        }\n        // Instances\n        if (useInstances) {\n            defines.push(\"#define INSTANCES\");\n            PushAttributesForInstances(attribs);\n            if (subMesh.getRenderingMesh().hasThinInstances) {\n                defines.push(\"#define THIN_INSTANCES\");\n            }\n        }\n        // Baked vertex animations\n        const bvaManager = mesh.bakedVertexAnimationManager;\n        if (bvaManager && bvaManager.isEnabled) {\n            defines.push(\"#define BAKED_VERTEX_ANIMATION_TEXTURE\");\n            if (useInstances) {\n                attribs.push(\"bakedVertexAnimationSettingsInstanced\");\n            }\n        }\n        // Get correct effect\n        const drawWrapper = subMesh._getDrawWrapper(undefined, true);\n        const cachedDefines = drawWrapper.defines;\n        const join = defines.join(\"\\n\");\n        if (cachedDefines !== join) {\n            const uniforms = [\n                \"world\",\n                \"mBones\",\n                \"boneTextureWidth\",\n                \"viewProjection\",\n                \"diffuseMatrix\",\n                \"morphTargetInfluences\",\n                \"morphTargetCount\",\n                \"morphTargetTextureInfo\",\n                \"morphTargetTextureIndices\",\n                \"bakedVertexAnimationSettings\",\n                \"bakedVertexAnimationTextureSizeInverted\",\n                \"bakedVertexAnimationTime\",\n                \"bakedVertexAnimationTexture\",\n            ];\n            const samplers = [\"diffuseSampler\", \"morphTargets\", \"boneSampler\", \"bakedVertexAnimationTexture\"];\n            drawWrapper.setEffect(mesh\n                .getScene()\n                .getEngine()\n                .createEffect(\"volumetricLightScatteringPass\", {\n                attributes: attribs,\n                uniformsNames: uniforms,\n                uniformBuffersNames: [],\n                samplers: samplers,\n                defines: join,\n                fallbacks: fallbacks,\n                onCompiled: null,\n                onError: null,\n                indexParameters: { maxSimultaneousMorphTargets: numMorphInfluencers },\n            }, mesh.getScene().getEngine()), join);\n        }\n        return drawWrapper.effect.isReady();\n    }\n    /**\n     * Sets the new light position for light scattering effect\n     * @param position The new custom light position\n     */\n    setCustomMeshPosition(position) {\n        this.customMeshPosition = position;\n    }\n    /**\n     * Returns the light position for light scattering effect\n     * @returns Vector3 The custom light position\n     */\n    getCustomMeshPosition() {\n        return this.customMeshPosition;\n    }\n    /**\n     * Disposes the internal assets and detaches the post-process from the camera\n     * @param camera The camera from which to detach the post-process\n     */\n    dispose(camera) {\n        const rttIndex = camera.getScene().customRenderTargets.indexOf(this._volumetricLightScatteringRTT);\n        if (rttIndex !== -1) {\n            camera.getScene().customRenderTargets.splice(rttIndex, 1);\n        }\n        this._volumetricLightScatteringRTT.dispose();\n        super.dispose(camera);\n    }\n    /**\n     * Returns the render target texture used by the post-process\n     * @returns the render target texture used by the post-process\n     */\n    getPass() {\n        return this._volumetricLightScatteringRTT;\n    }\n    // Private methods\n    _meshExcluded(mesh) {\n        if ((this.includedMeshes.length > 0 && this.includedMeshes.indexOf(mesh) === -1) || (this.excludedMeshes.length > 0 && this.excludedMeshes.indexOf(mesh) !== -1)) {\n            return true;\n        }\n        return false;\n    }\n    _createPass(scene, ratio) {\n        const engine = scene.getEngine();\n        this._volumetricLightScatteringRTT = new RenderTargetTexture(\"volumetricLightScatteringMap\", { width: engine.getRenderWidth() * ratio, height: engine.getRenderHeight() * ratio }, scene, false, true, 0);\n        this._volumetricLightScatteringRTT.wrapU = Texture.CLAMP_ADDRESSMODE;\n        this._volumetricLightScatteringRTT.wrapV = Texture.CLAMP_ADDRESSMODE;\n        this._volumetricLightScatteringRTT.renderList = null;\n        this._volumetricLightScatteringRTT.renderParticles = false;\n        this._volumetricLightScatteringRTT.ignoreCameraViewport = true;\n        const camera = this.getCamera();\n        if (camera) {\n            camera.customRenderTargets.push(this._volumetricLightScatteringRTT);\n        }\n        else {\n            scene.customRenderTargets.push(this._volumetricLightScatteringRTT);\n        }\n        // Custom render function for submeshes\n        const renderSubMesh = (subMesh) => {\n            const renderingMesh = subMesh.getRenderingMesh();\n            const effectiveMesh = subMesh.getEffectiveMesh();\n            if (this._meshExcluded(renderingMesh)) {\n                return;\n            }\n            effectiveMesh._internalAbstractMeshDataInfo._isActiveIntermediate = false;\n            const material = subMesh.getMaterial();\n            if (!material) {\n                return;\n            }\n            const scene = renderingMesh.getScene();\n            const engine = scene.getEngine();\n            // Culling\n            engine.setState(material.backFaceCulling, undefined, undefined, undefined, material.cullBackFaces);\n            // Managing instances\n            const batch = renderingMesh._getInstancesRenderList(subMesh._id, !!subMesh.getReplacementMesh());\n            if (batch.mustReturn) {\n                return;\n            }\n            const hardwareInstancedRendering = engine.getCaps().instancedArrays && (batch.visibleInstances[subMesh._id] !== null || renderingMesh.hasThinInstances);\n            if (this._isReady(subMesh, hardwareInstancedRendering)) {\n                const renderingMaterial = effectiveMesh._internalAbstractMeshDataInfo._materialForRenderPass?.[engine.currentRenderPassId];\n                let drawWrapper = subMesh._getDrawWrapper();\n                if (renderingMesh === this.mesh && !drawWrapper) {\n                    drawWrapper = material._getDrawWrapper();\n                }\n                if (!drawWrapper) {\n                    return;\n                }\n                const effect = drawWrapper.effect;\n                engine.enableEffect(drawWrapper);\n                if (!hardwareInstancedRendering) {\n                    renderingMesh._bind(subMesh, effect, material.fillMode);\n                }\n                if (renderingMesh === this.mesh) {\n                    material.bind(effectiveMesh.getWorldMatrix(), renderingMesh);\n                }\n                else if (renderingMaterial) {\n                    renderingMaterial.bindForSubMesh(effectiveMesh.getWorldMatrix(), effectiveMesh, subMesh);\n                }\n                else {\n                    effect.setMatrix(\"viewProjection\", scene.getTransformMatrix());\n                    // Alpha test\n                    if (material.needAlphaTesting()) {\n                        const alphaTexture = material.getAlphaTestTexture();\n                        if (alphaTexture) {\n                            effect.setTexture(\"diffuseSampler\", alphaTexture);\n                            effect.setMatrix(\"diffuseMatrix\", alphaTexture.getTextureMatrix());\n                        }\n                    }\n                    // Bones\n                    BindBonesParameters(renderingMesh, effect);\n                    // Morph targets\n                    BindMorphTargetParameters(renderingMesh, effect);\n                    if (renderingMesh.morphTargetManager && renderingMesh.morphTargetManager.isUsingTextureForTargets) {\n                        renderingMesh.morphTargetManager._bind(effect);\n                    }\n                    // Baked vertex animations\n                    const bvaManager = subMesh.getMesh().bakedVertexAnimationManager;\n                    if (bvaManager && bvaManager.isEnabled) {\n                        bvaManager.bind(effect, hardwareInstancedRendering);\n                    }\n                }\n                if (hardwareInstancedRendering && renderingMesh.hasThinInstances) {\n                    effect.setMatrix(\"world\", effectiveMesh.getWorldMatrix());\n                }\n                // Draw\n                renderingMesh._processRendering(effectiveMesh, subMesh, effect, Material.TriangleFillMode, batch, hardwareInstancedRendering, (isInstance, world) => {\n                    if (!isInstance) {\n                        effect.setMatrix(\"world\", world);\n                    }\n                });\n            }\n        };\n        // Render target texture callbacks\n        let savedSceneClearColor;\n        const sceneClearColor = new Color4(0.0, 0.0, 0.0, 1.0);\n        this._volumetricLightScatteringRTT.onBeforeRenderObservable.add(() => {\n            savedSceneClearColor = scene.clearColor;\n            scene.clearColor = sceneClearColor;\n        });\n        this._volumetricLightScatteringRTT.onAfterRenderObservable.add(() => {\n            scene.clearColor = savedSceneClearColor;\n        });\n        this._volumetricLightScatteringRTT.customIsReadyFunction = (mesh, refreshRate, preWarm) => {\n            if ((preWarm || refreshRate === 0) && mesh.subMeshes) {\n                for (let i = 0; i < mesh.subMeshes.length; ++i) {\n                    const subMesh = mesh.subMeshes[i];\n                    const material = subMesh.getMaterial();\n                    const renderingMesh = subMesh.getRenderingMesh();\n                    if (!material) {\n                        continue;\n                    }\n                    const batch = renderingMesh._getInstancesRenderList(subMesh._id, !!subMesh.getReplacementMesh());\n                    const hardwareInstancedRendering = engine.getCaps().instancedArrays && (batch.visibleInstances[subMesh._id] !== null || renderingMesh.hasThinInstances);\n                    if (!this._isReady(subMesh, hardwareInstancedRendering)) {\n                        return false;\n                    }\n                }\n            }\n            return true;\n        };\n        this._volumetricLightScatteringRTT.customRenderFunction = (opaqueSubMeshes, alphaTestSubMeshes, transparentSubMeshes, depthOnlySubMeshes) => {\n            const engine = scene.getEngine();\n            let index;\n            if (depthOnlySubMeshes.length) {\n                engine.setColorWrite(false);\n                for (index = 0; index < depthOnlySubMeshes.length; index++) {\n                    renderSubMesh(depthOnlySubMeshes.data[index]);\n                }\n                engine.setColorWrite(true);\n            }\n            for (index = 0; index < opaqueSubMeshes.length; index++) {\n                renderSubMesh(opaqueSubMeshes.data[index]);\n            }\n            for (index = 0; index < alphaTestSubMeshes.length; index++) {\n                renderSubMesh(alphaTestSubMeshes.data[index]);\n            }\n            if (transparentSubMeshes.length) {\n                // Sort sub meshes\n                for (index = 0; index < transparentSubMeshes.length; index++) {\n                    const submesh = transparentSubMeshes.data[index];\n                    const boundingInfo = submesh.getBoundingInfo();\n                    if (boundingInfo && scene.activeCamera) {\n                        submesh._alphaIndex = submesh.getMesh().alphaIndex;\n                        submesh._distanceToCamera = boundingInfo.boundingSphere.centerWorld.subtract(scene.activeCamera.position).length();\n                    }\n                }\n                const sortedArray = transparentSubMeshes.data.slice(0, transparentSubMeshes.length);\n                sortedArray.sort((a, b) => {\n                    // Alpha index first\n                    if (a._alphaIndex > b._alphaIndex) {\n                        return 1;\n                    }\n                    if (a._alphaIndex < b._alphaIndex) {\n                        return -1;\n                    }\n                    // Then distance to camera\n                    if (a._distanceToCamera < b._distanceToCamera) {\n                        return 1;\n                    }\n                    if (a._distanceToCamera > b._distanceToCamera) {\n                        return -1;\n                    }\n                    return 0;\n                });\n                // Render sub meshes\n                engine.setAlphaMode(2);\n                for (index = 0; index < sortedArray.length; index++) {\n                    renderSubMesh(sortedArray[index]);\n                }\n                engine.setAlphaMode(0);\n            }\n        };\n    }\n    _updateMeshScreenCoordinates(scene) {\n        const transform = scene.getTransformMatrix();\n        let meshPosition;\n        if (this.useCustomMeshPosition) {\n            meshPosition = this.customMeshPosition;\n        }\n        else if (this.attachedNode) {\n            meshPosition = this.attachedNode.position;\n        }\n        else {\n            meshPosition = this.mesh.parent ? this.mesh.getAbsolutePosition() : this.mesh.position;\n        }\n        const pos = Vector3.Project(meshPosition, Matrix.Identity(), transform, this._viewPort);\n        this._screenCoordinates.x = pos.x / this._viewPort.width;\n        this._screenCoordinates.y = pos.y / this._viewPort.height;\n        if (this.invert) {\n            this._screenCoordinates.y = 1.0 - this._screenCoordinates.y;\n        }\n    }\n    // Static methods\n    /**\n     * Creates a default mesh for the Volumeric Light Scattering post-process\n     * @param name The mesh name\n     * @param scene The scene where to create the mesh\n     * @returns the default mesh\n     */\n    static CreateDefaultMesh(name, scene) {\n        const mesh = CreatePlane(name, { size: 1 }, scene);\n        mesh.billboardMode = AbstractMesh.BILLBOARDMODE_ALL;\n        const material = new StandardMaterial(name + \"Material\", scene);\n        material.emissiveColor = new Color3(1, 1, 1);\n        mesh.material = material;\n        return mesh;\n    }\n}\n__decorate([\n    serializeAsVector3()\n], VolumetricLightScatteringPostProcess.prototype, \"customMeshPosition\", void 0);\n__decorate([\n    serialize()\n], VolumetricLightScatteringPostProcess.prototype, \"useCustomMeshPosition\", void 0);\n__decorate([\n    serialize()\n], VolumetricLightScatteringPostProcess.prototype, \"invert\", void 0);\n__decorate([\n    serializeAsMeshReference()\n], VolumetricLightScatteringPostProcess.prototype, \"mesh\", void 0);\n__decorate([\n    serialize()\n], VolumetricLightScatteringPostProcess.prototype, \"excludedMeshes\", void 0);\n__decorate([\n    serialize()\n], VolumetricLightScatteringPostProcess.prototype, \"includedMeshes\", void 0);\n__decorate([\n    serialize()\n], VolumetricLightScatteringPostProcess.prototype, \"exposure\", void 0);\n__decorate([\n    serialize()\n], VolumetricLightScatteringPostProcess.prototype, \"decay\", void 0);\n__decorate([\n    serialize()\n], VolumetricLightScatteringPostProcess.prototype, \"weight\", void 0);\n__decorate([\n    serialize()\n], VolumetricLightScatteringPostProcess.prototype, \"density\", void 0);\nRegisterClass(\"BABYLON.VolumetricLightScatteringPostProcess\", 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