| 1 |
- {"ast":null,"code":"import { Vector3 } from \"../Maths/math.vector.js\";\nimport { Color4 } from \"../Maths/math.color.js\";\nimport { VertexData } from \"../Meshes/mesh.vertexData.js\";\nimport { VertexBuffer } from \"../Buffers/buffer.js\";\nimport { SubMesh } from \"../Meshes/subMesh.js\";\nimport { SceneLoaderFlags } from \"../Loading/sceneLoaderFlags.js\";\nimport { BoundingInfo } from \"../Culling/boundingInfo.js\";\nimport { Tools } from \"../Misc/tools.js\";\nimport { Tags } from \"../Misc/tags.js\";\nimport { extractMinAndMax } from \"../Maths/math.functions.js\";\nimport { EngineStore } from \"../Engines/engineStore.js\";\nimport { useOpenGLOrientationForUV } from \"../Compat/compatibilityOptions.js\";\nimport { CopyFloatData } from \"../Buffers/bufferUtils.js\";\n/**\n * Class used to store geometry data (vertex buffers + index buffer)\n */\nexport class Geometry {\n /**\n * Gets or sets the Bias Vector to apply on the bounding elements (box/sphere), the max extend is computed as v += v * bias.x + bias.y, the min is computed as v -= v * bias.x + bias.y\n */\n get boundingBias() {\n return this._boundingBias;\n }\n /**\n * Gets or sets the Bias Vector to apply on the bounding elements (box/sphere), the max extend is computed as v += v * bias.x + bias.y, the min is computed as v -= v * bias.x + bias.y\n */\n set boundingBias(value) {\n if (this._boundingBias) {\n this._boundingBias.copyFrom(value);\n } else {\n this._boundingBias = value.clone();\n }\n this._updateBoundingInfo(true, null);\n }\n /**\n * Static function used to attach a new empty geometry to a mesh\n * @param mesh defines the mesh to attach the geometry to\n * @returns the new Geometry\n */\n static CreateGeometryForMesh(mesh) {\n const geometry = new Geometry(Geometry.RandomId(), mesh.getScene());\n geometry.applyToMesh(mesh);\n return geometry;\n }\n /** Get the list of meshes using this geometry */\n get meshes() {\n return this._meshes;\n }\n /**\n * Creates a new geometry\n * @param id defines the unique ID\n * @param scene defines the hosting scene\n * @param vertexData defines the VertexData used to get geometry data\n * @param updatable defines if geometry must be updatable (false by default)\n * @param mesh defines the mesh that will be associated with the geometry\n */\n constructor(id, scene, vertexData, updatable = false, mesh = null) {\n /**\n * Gets the delay loading state of the geometry (none by default which means not delayed)\n */\n this.delayLoadState = 0;\n this._totalVertices = 0;\n this._isDisposed = false;\n this._indexBufferIsUpdatable = false;\n this._positionsCache = [];\n /** @internal */\n this._parentContainer = null;\n /**\n * If set to true (false by default), the bounding info applied to the meshes sharing this geometry will be the bounding info defined at the class level\n * and won't be computed based on the vertex positions (which is what we get when useBoundingInfoFromGeometry = false)\n */\n this.useBoundingInfoFromGeometry = false;\n this._scene = scene || EngineStore.LastCreatedScene;\n if (!this._scene) {\n return;\n }\n this.id = id;\n this.uniqueId = this._scene.getUniqueId();\n this._engine = this._scene.getEngine();\n this._meshes = [];\n //Init vertex buffer cache\n this._vertexBuffers = {};\n this._indices = [];\n this._updatable = updatable;\n // vertexData\n if (vertexData) {\n this.setAllVerticesData(vertexData, updatable);\n } else {\n this._totalVertices = 0;\n }\n if (this._engine.getCaps().vertexArrayObject) {\n this._vertexArrayObjects = {};\n }\n // applyToMesh\n if (mesh) {\n this.applyToMesh(mesh);\n mesh.computeWorldMatrix(true);\n }\n }\n /**\n * Gets the current extend of the geometry\n */\n get extend() {\n return this._extend;\n }\n /**\n * Gets the hosting scene\n * @returns the hosting Scene\n */\n getScene() {\n return this._scene;\n }\n /**\n * Gets the hosting engine\n * @returns the hosting Engine\n */\n getEngine() {\n return this._engine;\n }\n /**\n * Defines if the geometry is ready to use\n * @returns true if the geometry is ready to be used\n */\n isReady() {\n return this.delayLoadState === 1 || this.delayLoadState === 0;\n }\n /**\n * Gets a value indicating that the geometry should not be serialized\n */\n get doNotSerialize() {\n for (let index = 0; index < this._meshes.length; index++) {\n if (!this._meshes[index].doNotSerialize) {\n return false;\n }\n }\n return true;\n }\n /** @internal */\n _rebuild() {\n if (this._vertexArrayObjects) {\n this._vertexArrayObjects = {};\n }\n // Index buffer\n if (this._meshes.length !== 0 && this._indices) {\n this._indexBuffer = this._engine.createIndexBuffer(this._indices, this._updatable, \"Geometry_\" + this.id + \"_IndexBuffer\");\n }\n // Vertex buffers\n const buffers = new Set();\n for (const key in this._vertexBuffers) {\n buffers.add(this._vertexBuffers[key].getWrapperBuffer());\n }\n buffers.forEach(buffer => {\n buffer._rebuild();\n });\n }\n /**\n * Affects all geometry data in one call\n * @param vertexData defines the geometry data\n * @param updatable defines if the geometry must be flagged as updatable (false as default)\n */\n setAllVerticesData(vertexData, updatable) {\n vertexData.applyToGeometry(this, updatable);\n this._notifyUpdate();\n }\n /**\n * Set specific vertex data\n * @param kind defines the data kind (Position, normal, etc...)\n * @param data defines the vertex data to use\n * @param updatable defines if the vertex must be flagged as updatable (false as default)\n * @param stride defines the stride to use (0 by default). This value is deduced from the kind value if not specified\n */\n setVerticesData(kind, data, updatable = false, stride) {\n if (updatable && Array.isArray(data)) {\n // to avoid converting to Float32Array at each draw call in engine.updateDynamicVertexBuffer, we make the conversion a single time here\n data = new Float32Array(data);\n }\n const buffer = new VertexBuffer(this._engine, data, kind, {\n updatable,\n postponeInternalCreation: this._meshes.length === 0,\n stride,\n label: \"Geometry_\" + this.id + \"_\" + kind\n });\n this.setVerticesBuffer(buffer);\n }\n /**\n * Removes a specific vertex data\n * @param kind defines the data kind (Position, normal, etc...)\n */\n removeVerticesData(kind) {\n if (this._vertexBuffers[kind]) {\n this._vertexBuffers[kind].dispose();\n delete this._vertexBuffers[kind];\n }\n if (this._vertexArrayObjects) {\n this._disposeVertexArrayObjects();\n }\n }\n /**\n * Affect a vertex buffer to the geometry. the vertexBuffer.getKind() function is used to determine where to store the data\n * @param buffer defines the vertex buffer to use\n * @param totalVertices defines the total number of vertices for position kind (could be null)\n * @param disposeExistingBuffer disposes the existing buffer, if any (default: true)\n */\n setVerticesBuffer(buffer, totalVertices = null, disposeExistingBuffer = true) {\n const kind = buffer.getKind();\n if (this._vertexBuffers[kind] && disposeExistingBuffer) {\n this._vertexBuffers[kind].dispose();\n }\n if (buffer._buffer) {\n buffer._buffer._increaseReferences();\n }\n this._vertexBuffers[kind] = buffer;\n const meshes = this._meshes;\n const numOfMeshes = meshes.length;\n if (kind === VertexBuffer.PositionKind) {\n this._totalVertices = totalVertices !== null && totalVertices !== void 0 ? totalVertices : buffer._maxVerticesCount;\n this._updateExtend(buffer.getFloatData(this._totalVertices));\n this._resetPointsArrayCache();\n // this._extend can be empty if buffer.getFloatData(this._totalVertices) returned null\n const minimum = this._extend && this._extend.minimum || new Vector3(-Number.MAX_VALUE, -Number.MAX_VALUE, -Number.MAX_VALUE);\n const maximum = this._extend && this._extend.maximum || new Vector3(Number.MAX_VALUE, Number.MAX_VALUE, Number.MAX_VALUE);\n for (let index = 0; index < numOfMeshes; index++) {\n const mesh = meshes[index];\n mesh.buildBoundingInfo(minimum, maximum);\n mesh._createGlobalSubMesh(mesh.isUnIndexed);\n mesh.computeWorldMatrix(true);\n mesh.synchronizeInstances();\n }\n }\n this._notifyUpdate(kind);\n }\n /**\n * Update a specific vertex buffer\n * This function will directly update the underlying DataBuffer according to the passed numeric array or Float32Array\n * It will do nothing if the buffer is not updatable\n * @param kind defines the data kind (Position, normal, etc...)\n * @param data defines the data to use\n * @param offset defines the offset in the target buffer where to store the data\n * @param useBytes set to true if the offset is in bytes\n */\n updateVerticesDataDirectly(kind, data, offset, useBytes = false) {\n const vertexBuffer = this.getVertexBuffer(kind);\n if (!vertexBuffer) {\n return;\n }\n vertexBuffer.updateDirectly(data, offset, useBytes);\n this._notifyUpdate(kind);\n }\n /**\n * Update a specific vertex buffer\n * This function will create a new buffer if the current one is not updatable\n * @param kind defines the data kind (Position, normal, etc...)\n * @param data defines the data to use\n * @param updateExtends defines if the geometry extends must be recomputed (false by default)\n */\n updateVerticesData(kind, data, updateExtends = false) {\n const vertexBuffer = this.getVertexBuffer(kind);\n if (!vertexBuffer) {\n return;\n }\n vertexBuffer.update(data);\n if (kind === VertexBuffer.PositionKind) {\n this._updateBoundingInfo(updateExtends, data);\n }\n this._notifyUpdate(kind);\n }\n _updateBoundingInfo(updateExtends, data) {\n if (updateExtends) {\n this._updateExtend(data);\n }\n this._resetPointsArrayCache();\n if (updateExtends) {\n const meshes = this._meshes;\n for (const mesh of meshes) {\n if (mesh.hasBoundingInfo) {\n mesh.getBoundingInfo().reConstruct(this._extend.minimum, this._extend.maximum);\n } else {\n mesh.buildBoundingInfo(this._extend.minimum, this._extend.maximum);\n }\n const subMeshes = mesh.subMeshes;\n for (const subMesh of subMeshes) {\n subMesh.refreshBoundingInfo();\n }\n }\n }\n }\n /**\n * @internal\n */\n _bind(effect, indexToBind, overrideVertexBuffers, overrideVertexArrayObjects) {\n if (!effect) {\n return;\n }\n if (indexToBind === undefined) {\n indexToBind = this._indexBuffer;\n }\n const vbs = this.getVertexBuffers();\n if (!vbs) {\n return;\n }\n if (indexToBind != this._indexBuffer || !this._vertexArrayObjects && !overrideVertexArrayObjects) {\n this._engine.bindBuffers(vbs, indexToBind, effect, overrideVertexBuffers);\n return;\n }\n const vaos = overrideVertexArrayObjects ? overrideVertexArrayObjects : this._vertexArrayObjects;\n const engine = this._engine;\n // Using VAO\n if (!vaos[effect.key]) {\n vaos[effect.key] = engine.recordVertexArrayObject(vbs, indexToBind, effect, overrideVertexBuffers);\n }\n engine.bindVertexArrayObject(vaos[effect.key], indexToBind);\n }\n /**\n * Gets total number of vertices\n * @returns the total number of vertices\n */\n getTotalVertices() {\n if (!this.isReady()) {\n return 0;\n }\n return this._totalVertices;\n }\n /**\n * Gets a specific vertex data attached to this geometry. Float data is constructed if the vertex buffer data cannot be returned directly.\n * @param kind defines the data kind (Position, normal, etc...)\n * @param copyWhenShared defines if the returned array must be cloned upon returning it if the current geometry is shared between multiple meshes\n * @param forceCopy defines a boolean indicating that the returned array must be cloned upon returning it\n * @returns a float array containing vertex data\n */\n getVerticesData(kind, copyWhenShared, forceCopy) {\n const vertexBuffer = this.getVertexBuffer(kind);\n if (!vertexBuffer) {\n return null;\n }\n return vertexBuffer.getFloatData(this._totalVertices, forceCopy || copyWhenShared && this._meshes.length !== 1);\n }\n /**\n * Copies the requested vertex data kind into the given vertex data map. Float data is constructed if the map doesn't have the data.\n * @param kind defines the data kind (Position, normal, etc...)\n * @param vertexData defines the map that stores the resulting data\n */\n copyVerticesData(kind, vertexData) {\n const vertexBuffer = this.getVertexBuffer(kind);\n if (!vertexBuffer) {\n return;\n }\n vertexData[kind] || (vertexData[kind] = new Float32Array(this._totalVertices * vertexBuffer.getSize()));\n const data = vertexBuffer.getData();\n if (data) {\n CopyFloatData(data, vertexBuffer.getSize(), vertexBuffer.type, vertexBuffer.byteOffset, vertexBuffer.byteStride, vertexBuffer.normalized, this._totalVertices, vertexData[kind]);\n }\n }\n /**\n * Returns a boolean defining if the vertex data for the requested `kind` is updatable\n * @param kind defines the data kind (Position, normal, etc...)\n * @returns true if the vertex buffer with the specified kind is updatable\n */\n isVertexBufferUpdatable(kind) {\n const vb = this._vertexBuffers[kind];\n if (!vb) {\n return false;\n }\n return vb.isUpdatable();\n }\n /**\n * Gets a specific vertex buffer\n * @param kind defines the data kind (Position, normal, etc...)\n * @returns a VertexBuffer\n */\n getVertexBuffer(kind) {\n if (!this.isReady()) {\n return null;\n }\n return this._vertexBuffers[kind];\n }\n /**\n * Returns all vertex buffers\n * @returns an object holding all vertex buffers indexed by kind\n */\n getVertexBuffers() {\n if (!this.isReady()) {\n return null;\n }\n return this._vertexBuffers;\n }\n /**\n * Gets a boolean indicating if specific vertex buffer is present\n * @param kind defines the data kind (Position, normal, etc...)\n * @returns true if data is present\n */\n isVerticesDataPresent(kind) {\n if (!this._vertexBuffers) {\n if (this._delayInfo) {\n return this._delayInfo.indexOf(kind) !== -1;\n }\n return false;\n }\n return this._vertexBuffers[kind] !== undefined;\n }\n /**\n * Gets a list of all attached data kinds (Position, normal, etc...)\n * @returns a list of string containing all kinds\n */\n getVerticesDataKinds() {\n const result = [];\n let kind;\n if (!this._vertexBuffers && this._delayInfo) {\n for (kind in this._delayInfo) {\n result.push(kind);\n }\n } else {\n for (kind in this._vertexBuffers) {\n result.push(kind);\n }\n }\n return result;\n }\n /**\n * Update index buffer\n * @param indices defines the indices to store in the index buffer\n * @param offset defines the offset in the target buffer where to store the data\n * @param gpuMemoryOnly defines a boolean indicating that only the GPU memory must be updated leaving the CPU version of the indices unchanged (false by default)\n */\n updateIndices(indices, offset, gpuMemoryOnly = false) {\n if (!this._indexBuffer) {\n return;\n }\n if (!this._indexBufferIsUpdatable) {\n this.setIndices(indices, null, true);\n } else {\n const needToUpdateSubMeshes = indices.length !== this._indices.length;\n if (!gpuMemoryOnly) {\n this._indices = indices.slice();\n }\n this._engine.updateDynamicIndexBuffer(this._indexBuffer, indices, offset);\n if (needToUpdateSubMeshes) {\n for (const mesh of this._meshes) {\n mesh._createGlobalSubMesh(true);\n }\n }\n }\n }\n /**\n * Sets the index buffer for this geometry.\n * @param indexBuffer Defines the index buffer to use for this geometry\n * @param totalVertices Defines the total number of vertices used by the buffer\n * @param totalIndices Defines the total number of indices in the index buffer\n */\n setIndexBuffer(indexBuffer, totalVertices, totalIndices) {\n this._indices = [];\n this._indexBufferIsUpdatable = false;\n this._indexBuffer = indexBuffer;\n this._totalVertices = totalVertices;\n this._totalIndices = totalIndices;\n indexBuffer.is32Bits || (indexBuffer.is32Bits = this._totalIndices > 65535);\n for (const mesh of this._meshes) {\n mesh._createGlobalSubMesh(true);\n mesh.synchronizeInstances();\n }\n this._notifyUpdate();\n }\n /**\n * Creates a new index buffer\n * @param indices defines the indices to store in the index buffer\n * @param totalVertices defines the total number of vertices (could be null)\n * @param updatable defines if the index buffer must be flagged as updatable (false by default)\n * @param dontForceSubMeshRecreation defines a boolean indicating that we don't want to force the recreation of sub-meshes if we don't have to (false by default)\n */\n setIndices(indices, totalVertices = null, updatable = false, dontForceSubMeshRecreation = false) {\n if (this._indexBuffer) {\n this._engine._releaseBuffer(this._indexBuffer);\n }\n this._indices = indices;\n this._indexBufferIsUpdatable = updatable;\n if (this._meshes.length !== 0 && this._indices) {\n this._indexBuffer = this._engine.createIndexBuffer(this._indices, updatable, \"Geometry_\" + this.id + \"_IndexBuffer\");\n }\n if (totalVertices != undefined) {\n // including null and undefined\n this._totalVertices = totalVertices;\n }\n for (const mesh of this._meshes) {\n mesh._createGlobalSubMesh(!dontForceSubMeshRecreation);\n mesh.synchronizeInstances();\n }\n this._notifyUpdate();\n }\n /**\n * Return the total number of indices\n * @returns the total number of indices\n */\n getTotalIndices() {\n if (!this.isReady()) {\n return 0;\n }\n return this._totalIndices !== undefined ? this._totalIndices : this._indices.length;\n }\n /**\n * Gets the index buffer array\n * @param copyWhenShared defines if the returned array must be cloned upon returning it if the current geometry is shared between multiple meshes\n * @param forceCopy defines a boolean indicating that the returned array must be cloned upon returning it\n * @returns the index buffer array\n */\n getIndices(copyWhenShared, forceCopy) {\n if (!this.isReady()) {\n return null;\n }\n const orig = this._indices;\n if (!forceCopy && (!copyWhenShared || this._meshes.length === 1)) {\n return orig;\n } else {\n return orig.slice();\n }\n }\n /**\n * Gets the index buffer\n * @returns the index buffer\n */\n getIndexBuffer() {\n if (!this.isReady()) {\n return null;\n }\n return this._indexBuffer;\n }\n /**\n * @internal\n */\n _releaseVertexArrayObject(effect = null) {\n if (!effect || !this._vertexArrayObjects) {\n return;\n }\n if (this._vertexArrayObjects[effect.key]) {\n this._engine.releaseVertexArrayObject(this._vertexArrayObjects[effect.key]);\n delete this._vertexArrayObjects[effect.key];\n }\n }\n /**\n * Release the associated resources for a specific mesh\n * @param mesh defines the source mesh\n * @param shouldDispose defines if the geometry must be disposed if there is no more mesh pointing to it\n */\n releaseForMesh(mesh, shouldDispose) {\n const meshes = this._meshes;\n const index = meshes.indexOf(mesh);\n if (index === -1) {\n return;\n }\n meshes.splice(index, 1);\n if (this._vertexArrayObjects) {\n mesh._invalidateInstanceVertexArrayObject();\n }\n mesh._geometry = null;\n if (meshes.length === 0 && shouldDispose) {\n this.dispose();\n }\n }\n /**\n * Apply current geometry to a given mesh\n * @param mesh defines the mesh to apply geometry to\n */\n applyToMesh(mesh) {\n if (mesh._geometry === this) {\n return;\n }\n const previousGeometry = mesh._geometry;\n if (previousGeometry) {\n previousGeometry.releaseForMesh(mesh);\n }\n if (this._vertexArrayObjects) {\n mesh._invalidateInstanceVertexArrayObject();\n }\n const meshes = this._meshes;\n // must be done before setting vertexBuffers because of mesh._createGlobalSubMesh()\n mesh._geometry = this;\n mesh._internalAbstractMeshDataInfo._positions = null;\n this._scene.pushGeometry(this);\n meshes.push(mesh);\n if (this.isReady()) {\n this._applyToMesh(mesh);\n } else if (this._boundingInfo) {\n mesh.setBoundingInfo(this._boundingInfo);\n }\n }\n _updateExtend(data = null) {\n if (this.useBoundingInfoFromGeometry && this._boundingInfo) {\n this._extend = {\n minimum: this._boundingInfo.minimum.clone(),\n maximum: this._boundingInfo.maximum.clone()\n };\n } else {\n if (!data) {\n data = this.getVerticesData(VertexBuffer.PositionKind);\n // This can happen if the buffer comes from a Hardware Buffer where\n // The data have not been uploaded by Babylon. (ex: Compute Shaders and Storage Buffers)\n if (!data) {\n return;\n }\n }\n this._extend = extractMinAndMax(data, 0, this._totalVertices, this.boundingBias, 3);\n }\n }\n _applyToMesh(mesh) {\n const numOfMeshes = this._meshes.length;\n // vertexBuffers\n for (const kind in this._vertexBuffers) {\n if (numOfMeshes === 1) {\n this._vertexBuffers[kind].create();\n }\n if (kind === VertexBuffer.PositionKind) {\n if (!this._extend) {\n this._updateExtend();\n }\n mesh.buildBoundingInfo(this._extend.minimum, this._extend.maximum);\n mesh._createGlobalSubMesh(mesh.isUnIndexed);\n //bounding info was just created again, world matrix should be applied again.\n mesh._updateBoundingInfo();\n }\n }\n // indexBuffer\n if (numOfMeshes === 1 && this._indices && this._indices.length > 0) {\n this._indexBuffer = this._engine.createIndexBuffer(this._indices, this._updatable, \"Geometry_\" + this.id + \"_IndexBuffer\");\n }\n // morphTargets\n mesh._syncGeometryWithMorphTargetManager();\n // instances\n mesh.synchronizeInstances();\n }\n _notifyUpdate(kind) {\n if (this.onGeometryUpdated) {\n this.onGeometryUpdated(this, kind);\n }\n if (this._vertexArrayObjects) {\n this._disposeVertexArrayObjects();\n }\n for (const mesh of this._meshes) {\n mesh._markSubMeshesAsAttributesDirty();\n }\n }\n /**\n * Load the geometry if it was flagged as delay loaded\n * @param scene defines the hosting scene\n * @param onLoaded defines a callback called when the geometry is loaded\n */\n load(scene, onLoaded) {\n if (this.delayLoadState === 2) {\n return;\n }\n if (this.isReady()) {\n if (onLoaded) {\n onLoaded();\n }\n return;\n }\n this.delayLoadState = 2;\n this._queueLoad(scene, onLoaded);\n }\n _queueLoad(scene, onLoaded) {\n if (!this.delayLoadingFile) {\n return;\n }\n scene.addPendingData(this);\n scene._loadFile(this.delayLoadingFile, data => {\n if (!this._delayLoadingFunction) {\n return;\n }\n this._delayLoadingFunction(JSON.parse(data), this);\n this.delayLoadState = 1;\n this._delayInfo = [];\n scene.removePendingData(this);\n const meshes = this._meshes;\n const numOfMeshes = meshes.length;\n for (let index = 0; index < numOfMeshes; index++) {\n this._applyToMesh(meshes[index]);\n }\n if (onLoaded) {\n onLoaded();\n }\n }, undefined, true);\n }\n /**\n * Invert the geometry to move from a right handed system to a left handed one.\n */\n toLeftHanded() {\n // Flip faces\n const tIndices = this.getIndices(false);\n if (tIndices != null && tIndices.length > 0) {\n for (let i = 0; i < tIndices.length; i += 3) {\n const tTemp = tIndices[i + 0];\n tIndices[i + 0] = tIndices[i + 2];\n tIndices[i + 2] = tTemp;\n }\n this.setIndices(tIndices);\n }\n // Negate position.z\n const tPositions = this.getVerticesData(VertexBuffer.PositionKind, false);\n if (tPositions != null && tPositions.length > 0) {\n for (let i = 0; i < tPositions.length; i += 3) {\n tPositions[i + 2] = -tPositions[i + 2];\n }\n this.setVerticesData(VertexBuffer.PositionKind, tPositions, false);\n }\n // Negate normal.z\n const tNormals = this.getVerticesData(VertexBuffer.NormalKind, false);\n if (tNormals != null && tNormals.length > 0) {\n for (let i = 0; i < tNormals.length; i += 3) {\n tNormals[i + 2] = -tNormals[i + 2];\n }\n this.setVerticesData(VertexBuffer.NormalKind, tNormals, false);\n }\n }\n // Cache\n /** @internal */\n _resetPointsArrayCache() {\n this._positions = null;\n }\n /** @internal */\n _generatePointsArray() {\n if (this._positions) {\n return true;\n }\n const data = this.getVerticesData(VertexBuffer.PositionKind);\n if (!data || data.length === 0) {\n return false;\n }\n for (let index = this._positionsCache.length * 3, arrayIdx = this._positionsCache.length; index < data.length; index += 3, ++arrayIdx) {\n this._positionsCache[arrayIdx] = Vector3.FromArray(data, index);\n }\n for (let index = 0, arrayIdx = 0; index < data.length; index += 3, ++arrayIdx) {\n this._positionsCache[arrayIdx].set(data[0 + index], data[1 + index], data[2 + index]);\n }\n // just in case the number of positions was reduced, splice the array\n this._positionsCache.length = data.length / 3;\n this._positions = this._positionsCache;\n return true;\n }\n /**\n * Gets a value indicating if the geometry is disposed\n * @returns true if the geometry was disposed\n */\n isDisposed() {\n return this._isDisposed;\n }\n _disposeVertexArrayObjects() {\n if (this._vertexArrayObjects) {\n for (const kind in this._vertexArrayObjects) {\n this._engine.releaseVertexArrayObject(this._vertexArrayObjects[kind]);\n }\n this._vertexArrayObjects = {}; // Will trigger a rebuild of the VAO if supported\n const meshes = this._meshes;\n const numOfMeshes = meshes.length;\n for (let index = 0; index < numOfMeshes; index++) {\n meshes[index]._invalidateInstanceVertexArrayObject();\n }\n }\n }\n /**\n * Free all associated resources\n */\n dispose() {\n const meshes = this._meshes;\n const numOfMeshes = meshes.length;\n let index;\n for (index = 0; index < numOfMeshes; index++) {\n this.releaseForMesh(meshes[index]);\n }\n this._meshes.length = 0;\n this._disposeVertexArrayObjects();\n for (const kind in this._vertexBuffers) {\n this._vertexBuffers[kind].dispose();\n }\n this._vertexBuffers = {};\n this._totalVertices = 0;\n if (this._indexBuffer) {\n this._engine._releaseBuffer(this._indexBuffer);\n }\n this._indexBuffer = null;\n this._indices = [];\n this.delayLoadState = 0;\n this.delayLoadingFile = null;\n this._delayLoadingFunction = null;\n this._delayInfo = [];\n this._boundingInfo = null;\n this._scene.removeGeometry(this);\n if (this._parentContainer) {\n const index = this._parentContainer.geometries.indexOf(this);\n if (index > -1) {\n this._parentContainer.geometries.splice(index, 1);\n }\n this._parentContainer = null;\n }\n this._isDisposed = true;\n }\n /**\n * Clone the current geometry into a new geometry\n * @param id defines the unique ID of the new geometry\n * @returns a new geometry object\n */\n copy(id) {\n const vertexData = new VertexData();\n vertexData.indices = [];\n const indices = this.getIndices();\n if (indices) {\n for (let index = 0; index < indices.length; index++) {\n vertexData.indices.push(indices[index]);\n }\n }\n let updatable = false;\n let stopChecking = false;\n let kind;\n for (kind in this._vertexBuffers) {\n // using slice() to make a copy of the array and not just reference it\n const data = this.getVerticesData(kind);\n if (data) {\n if (data instanceof Float32Array) {\n vertexData.set(new Float32Array(data), kind);\n } else {\n vertexData.set(data.slice(0), kind);\n }\n if (!stopChecking) {\n const vb = this.getVertexBuffer(kind);\n if (vb) {\n updatable = vb.isUpdatable();\n stopChecking = !updatable;\n }\n }\n }\n }\n const geometry = new Geometry(id, this._scene, vertexData, updatable);\n geometry.delayLoadState = this.delayLoadState;\n geometry.delayLoadingFile = this.delayLoadingFile;\n geometry._delayLoadingFunction = this._delayLoadingFunction;\n for (kind in this._delayInfo) {\n geometry._delayInfo = geometry._delayInfo || [];\n geometry._delayInfo.push(kind);\n }\n // Bounding info\n geometry._boundingInfo = new BoundingInfo(this._extend.minimum, this._extend.maximum);\n return geometry;\n }\n /**\n * Serialize the current geometry info (and not the vertices data) into a JSON object\n * @returns a JSON representation of the current geometry data (without the vertices data)\n */\n serialize() {\n const serializationObject = {};\n serializationObject.id = this.id;\n serializationObject.uniqueId = this.uniqueId;\n serializationObject.updatable = this._updatable;\n if (Tags && Tags.HasTags(this)) {\n serializationObject.tags = Tags.GetTags(this);\n }\n return serializationObject;\n }\n _toNumberArray(origin) {\n if (Array.isArray(origin)) {\n return origin;\n } else {\n return Array.prototype.slice.call(origin);\n }\n }\n /**\n * Release any memory retained by the cached data on the Geometry.\n *\n * Call this function to reduce memory footprint of the mesh.\n * Vertex buffers will not store CPU data anymore (this will prevent picking, collisions or physics to work correctly)\n */\n clearCachedData() {\n this._indices = [];\n this._resetPointsArrayCache();\n for (const vbName in this._vertexBuffers) {\n if (!Object.prototype.hasOwnProperty.call(this._vertexBuffers, vbName)) {\n continue;\n }\n this._vertexBuffers[vbName]._buffer._data = null;\n }\n }\n /**\n * Serialize all vertices data into a JSON object\n * @returns a JSON representation of the current geometry data\n */\n serializeVerticeData() {\n const serializationObject = this.serialize();\n if (this.isVerticesDataPresent(VertexBuffer.PositionKind)) {\n serializationObject.positions = this._toNumberArray(this.getVerticesData(VertexBuffer.PositionKind));\n if (this.isVertexBufferUpdatable(VertexBuffer.PositionKind)) {\n serializationObject.positions._updatable = true;\n }\n }\n if (this.isVerticesDataPresent(VertexBuffer.NormalKind)) {\n serializationObject.normals = this._toNumberArray(this.getVerticesData(VertexBuffer.NormalKind));\n if (this.isVertexBufferUpdatable(VertexBuffer.NormalKind)) {\n serializationObject.normals._updatable = true;\n }\n }\n if (this.isVerticesDataPresent(VertexBuffer.TangentKind)) {\n serializationObject.tangents = this._toNumberArray(this.getVerticesData(VertexBuffer.TangentKind));\n if (this.isVertexBufferUpdatable(VertexBuffer.TangentKind)) {\n serializationObject.tangents._updatable = true;\n }\n }\n if (this.isVerticesDataPresent(VertexBuffer.UVKind)) {\n serializationObject.uvs = this._toNumberArray(this.getVerticesData(VertexBuffer.UVKind));\n if (this.isVertexBufferUpdatable(VertexBuffer.UVKind)) {\n serializationObject.uvs._updatable = true;\n }\n }\n if (this.isVerticesDataPresent(VertexBuffer.UV2Kind)) {\n serializationObject.uvs2 = this._toNumberArray(this.getVerticesData(VertexBuffer.UV2Kind));\n if (this.isVertexBufferUpdatable(VertexBuffer.UV2Kind)) {\n serializationObject.uvs2._updatable = true;\n }\n }\n if (this.isVerticesDataPresent(VertexBuffer.UV3Kind)) {\n serializationObject.uvs3 = this._toNumberArray(this.getVerticesData(VertexBuffer.UV3Kind));\n if (this.isVertexBufferUpdatable(VertexBuffer.UV3Kind)) {\n serializationObject.uvs3._updatable = true;\n }\n }\n if (this.isVerticesDataPresent(VertexBuffer.UV4Kind)) {\n serializationObject.uvs4 = this._toNumberArray(this.getVerticesData(VertexBuffer.UV4Kind));\n if (this.isVertexBufferUpdatable(VertexBuffer.UV4Kind)) {\n serializationObject.uvs4._updatable = true;\n }\n }\n if (this.isVerticesDataPresent(VertexBuffer.UV5Kind)) {\n serializationObject.uvs5 = this._toNumberArray(this.getVerticesData(VertexBuffer.UV5Kind));\n if (this.isVertexBufferUpdatable(VertexBuffer.UV5Kind)) {\n serializationObject.uvs5._updatable = true;\n }\n }\n if (this.isVerticesDataPresent(VertexBuffer.UV6Kind)) {\n serializationObject.uvs6 = this._toNumberArray(this.getVerticesData(VertexBuffer.UV6Kind));\n if (this.isVertexBufferUpdatable(VertexBuffer.UV6Kind)) {\n serializationObject.uvs6._updatable = true;\n }\n }\n if (this.isVerticesDataPresent(VertexBuffer.ColorKind)) {\n serializationObject.colors = this._toNumberArray(this.getVerticesData(VertexBuffer.ColorKind));\n if (this.isVertexBufferUpdatable(VertexBuffer.ColorKind)) {\n serializationObject.colors._updatable = true;\n }\n }\n if (this.isVerticesDataPresent(VertexBuffer.MatricesIndicesKind)) {\n serializationObject.matricesIndices = this._toNumberArray(this.getVerticesData(VertexBuffer.MatricesIndicesKind));\n serializationObject.matricesIndices._isExpanded = true;\n if (this.isVertexBufferUpdatable(VertexBuffer.MatricesIndicesKind)) {\n serializationObject.matricesIndices._updatable = true;\n }\n }\n if (this.isVerticesDataPresent(VertexBuffer.MatricesWeightsKind)) {\n serializationObject.matricesWeights = this._toNumberArray(this.getVerticesData(VertexBuffer.MatricesWeightsKind));\n if (this.isVertexBufferUpdatable(VertexBuffer.MatricesWeightsKind)) {\n serializationObject.matricesWeights._updatable = true;\n }\n }\n serializationObject.indices = this._toNumberArray(this.getIndices());\n return serializationObject;\n }\n // Statics\n /**\n * Extracts a clone of a mesh geometry\n * @param mesh defines the source mesh\n * @param id defines the unique ID of the new geometry object\n * @returns the new geometry object\n */\n static ExtractFromMesh(mesh, id) {\n const geometry = mesh._geometry;\n if (!geometry) {\n return null;\n }\n return geometry.copy(id);\n }\n /**\n * You should now use Tools.RandomId(), this method is still here for legacy reasons.\n * Implementation from http://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid-in-javascript/2117523#answer-2117523\n * Be aware Math.random() could cause collisions, but:\n * \"All but 6 of the 128 bits of the ID are randomly generated, which means that for any two ids, there's a 1 in 2^^122 (or 5.3x10^^36) chance they'll collide\"\n * @returns a string containing a new GUID\n */\n static RandomId() {\n return Tools.RandomId();\n }\n static _GetGeometryByLoadedUniqueId(uniqueId, scene) {\n for (let index = 0; index < scene.geometries.length; index++) {\n if (scene.geometries[index]._loadedUniqueId === uniqueId) {\n return scene.geometries[index];\n }\n }\n return null;\n }\n /**\n * @internal\n */\n static _ImportGeometry(parsedGeometry, mesh) {\n const scene = mesh.getScene();\n // Geometry\n const geometryUniqueId = parsedGeometry.geometryUniqueId;\n const geometryId = parsedGeometry.geometryId;\n if (geometryUniqueId || geometryId) {\n const geometry = geometryUniqueId ? this._GetGeometryByLoadedUniqueId(geometryUniqueId, scene) : scene.getGeometryById(geometryId);\n if (geometry) {\n geometry.applyToMesh(mesh);\n }\n } else if (parsedGeometry instanceof ArrayBuffer) {\n const binaryInfo = mesh._binaryInfo;\n if (binaryInfo.positionsAttrDesc && binaryInfo.positionsAttrDesc.count > 0) {\n const positionsData = new Float32Array(parsedGeometry, binaryInfo.positionsAttrDesc.offset, binaryInfo.positionsAttrDesc.count);\n mesh.setVerticesData(VertexBuffer.PositionKind, positionsData, false);\n }\n if (binaryInfo.normalsAttrDesc && binaryInfo.normalsAttrDesc.count > 0) {\n const normalsData = new Float32Array(parsedGeometry, binaryInfo.normalsAttrDesc.offset, binaryInfo.normalsAttrDesc.count);\n mesh.setVerticesData(VertexBuffer.NormalKind, normalsData, false);\n }\n if (binaryInfo.tangetsAttrDesc && binaryInfo.tangetsAttrDesc.count > 0) {\n const tangentsData = new Float32Array(parsedGeometry, binaryInfo.tangetsAttrDesc.offset, binaryInfo.tangetsAttrDesc.count);\n mesh.setVerticesData(VertexBuffer.TangentKind, tangentsData, false);\n }\n if (binaryInfo.uvsAttrDesc && binaryInfo.uvsAttrDesc.count > 0) {\n const uvsData = new Float32Array(parsedGeometry, binaryInfo.uvsAttrDesc.offset, binaryInfo.uvsAttrDesc.count);\n if (useOpenGLOrientationForUV) {\n for (let index = 1; index < uvsData.length; index += 2) {\n uvsData[index] = 1 - uvsData[index];\n }\n }\n mesh.setVerticesData(VertexBuffer.UVKind, uvsData, false);\n }\n if (binaryInfo.uvs2AttrDesc && binaryInfo.uvs2AttrDesc.count > 0) {\n const uvs2Data = new Float32Array(parsedGeometry, binaryInfo.uvs2AttrDesc.offset, binaryInfo.uvs2AttrDesc.count);\n if (useOpenGLOrientationForUV) {\n for (let index = 1; index < uvs2Data.length; index += 2) {\n uvs2Data[index] = 1 - uvs2Data[index];\n }\n }\n mesh.setVerticesData(VertexBuffer.UV2Kind, uvs2Data, false);\n }\n if (binaryInfo.uvs3AttrDesc && binaryInfo.uvs3AttrDesc.count > 0) {\n const uvs3Data = new Float32Array(parsedGeometry, binaryInfo.uvs3AttrDesc.offset, binaryInfo.uvs3AttrDesc.count);\n if (useOpenGLOrientationForUV) {\n for (let index = 1; index < uvs3Data.length; index += 2) {\n uvs3Data[index] = 1 - uvs3Data[index];\n }\n }\n mesh.setVerticesData(VertexBuffer.UV3Kind, uvs3Data, false);\n }\n if (binaryInfo.uvs4AttrDesc && binaryInfo.uvs4AttrDesc.count > 0) {\n const uvs4Data = new Float32Array(parsedGeometry, binaryInfo.uvs4AttrDesc.offset, binaryInfo.uvs4AttrDesc.count);\n if (useOpenGLOrientationForUV) {\n for (let index = 1; index < uvs4Data.length; index += 2) {\n uvs4Data[index] = 1 - uvs4Data[index];\n }\n }\n mesh.setVerticesData(VertexBuffer.UV4Kind, uvs4Data, false);\n }\n if (binaryInfo.uvs5AttrDesc && binaryInfo.uvs5AttrDesc.count > 0) {\n const uvs5Data = new Float32Array(parsedGeometry, binaryInfo.uvs5AttrDesc.offset, binaryInfo.uvs5AttrDesc.count);\n if (useOpenGLOrientationForUV) {\n for (let index = 1; index < uvs5Data.length; index += 2) {\n uvs5Data[index] = 1 - uvs5Data[index];\n }\n }\n mesh.setVerticesData(VertexBuffer.UV5Kind, uvs5Data, false);\n }\n if (binaryInfo.uvs6AttrDesc && binaryInfo.uvs6AttrDesc.count > 0) {\n const uvs6Data = new Float32Array(parsedGeometry, binaryInfo.uvs6AttrDesc.offset, binaryInfo.uvs6AttrDesc.count);\n if (useOpenGLOrientationForUV) {\n for (let index = 1; index < uvs6Data.length; index += 2) {\n uvs6Data[index] = 1 - uvs6Data[index];\n }\n }\n mesh.setVerticesData(VertexBuffer.UV6Kind, uvs6Data, false);\n }\n if (binaryInfo.colorsAttrDesc && binaryInfo.colorsAttrDesc.count > 0) {\n const colorsData = new Float32Array(parsedGeometry, binaryInfo.colorsAttrDesc.offset, binaryInfo.colorsAttrDesc.count);\n mesh.setVerticesData(VertexBuffer.ColorKind, colorsData, false, binaryInfo.colorsAttrDesc.stride);\n }\n if (binaryInfo.matricesIndicesAttrDesc && binaryInfo.matricesIndicesAttrDesc.count > 0) {\n const matricesIndicesData = new Int32Array(parsedGeometry, binaryInfo.matricesIndicesAttrDesc.offset, binaryInfo.matricesIndicesAttrDesc.count);\n const floatIndices = [];\n for (let i = 0; i < matricesIndicesData.length; i++) {\n const index = matricesIndicesData[i];\n floatIndices.push(index & 0x000000ff);\n floatIndices.push((index & 0x0000ff00) >> 8);\n floatIndices.push((index & 0x00ff0000) >> 16);\n floatIndices.push(index >> 24 & 0xff); // & 0xFF to convert to v + 256 if v < 0\n }\n mesh.setVerticesData(VertexBuffer.MatricesIndicesKind, floatIndices, false);\n }\n if (binaryInfo.matricesIndicesExtraAttrDesc && binaryInfo.matricesIndicesExtraAttrDesc.count > 0) {\n const matricesIndicesData = new Int32Array(parsedGeometry, binaryInfo.matricesIndicesExtraAttrDesc.offset, binaryInfo.matricesIndicesExtraAttrDesc.count);\n const floatIndices = [];\n for (let i = 0; i < matricesIndicesData.length; i++) {\n const index = matricesIndicesData[i];\n floatIndices.push(index & 0x000000ff);\n floatIndices.push((index & 0x0000ff00) >> 8);\n floatIndices.push((index & 0x00ff0000) >> 16);\n floatIndices.push(index >> 24 & 0xff); // & 0xFF to convert to v + 256 if v < 0\n }\n mesh.setVerticesData(VertexBuffer.MatricesIndicesExtraKind, floatIndices, false);\n }\n if (binaryInfo.matricesWeightsAttrDesc && binaryInfo.matricesWeightsAttrDesc.count > 0) {\n const matricesWeightsData = new Float32Array(parsedGeometry, binaryInfo.matricesWeightsAttrDesc.offset, binaryInfo.matricesWeightsAttrDesc.count);\n mesh.setVerticesData(VertexBuffer.MatricesWeightsKind, matricesWeightsData, false);\n }\n if (binaryInfo.indicesAttrDesc && binaryInfo.indicesAttrDesc.count > 0) {\n const indicesData = new Int32Array(parsedGeometry, binaryInfo.indicesAttrDesc.offset, binaryInfo.indicesAttrDesc.count);\n mesh.setIndices(indicesData, null);\n }\n if (binaryInfo.subMeshesAttrDesc && binaryInfo.subMeshesAttrDesc.count > 0) {\n const subMeshesData = new Int32Array(parsedGeometry, binaryInfo.subMeshesAttrDesc.offset, binaryInfo.subMeshesAttrDesc.count * 5);\n mesh.subMeshes = [];\n for (let i = 0; i < binaryInfo.subMeshesAttrDesc.count; i++) {\n const materialIndex = subMeshesData[i * 5 + 0];\n const verticesStart = subMeshesData[i * 5 + 1];\n const verticesCount = subMeshesData[i * 5 + 2];\n const indexStart = subMeshesData[i * 5 + 3];\n const indexCount = subMeshesData[i * 5 + 4];\n SubMesh.AddToMesh(materialIndex, verticesStart, verticesCount, indexStart, indexCount, mesh);\n }\n }\n } else if (parsedGeometry.positions && parsedGeometry.normals && parsedGeometry.indices) {\n mesh.setVerticesData(VertexBuffer.PositionKind, parsedGeometry.positions, parsedGeometry.positions._updatable);\n mesh.setVerticesData(VertexBuffer.NormalKind, parsedGeometry.normals, parsedGeometry.normals._updatable);\n if (parsedGeometry.tangents) {\n mesh.setVerticesData(VertexBuffer.TangentKind, parsedGeometry.tangents, parsedGeometry.tangents._updatable);\n }\n if (parsedGeometry.uvs) {\n mesh.setVerticesData(VertexBuffer.UVKind, parsedGeometry.uvs, parsedGeometry.uvs._updatable);\n }\n if (parsedGeometry.uvs2) {\n mesh.setVerticesData(VertexBuffer.UV2Kind, parsedGeometry.uvs2, parsedGeometry.uvs2._updatable);\n }\n if (parsedGeometry.uvs3) {\n mesh.setVerticesData(VertexBuffer.UV3Kind, parsedGeometry.uvs3, parsedGeometry.uvs3._updatable);\n }\n if (parsedGeometry.uvs4) {\n mesh.setVerticesData(VertexBuffer.UV4Kind, parsedGeometry.uvs4, parsedGeometry.uvs4._updatable);\n }\n if (parsedGeometry.uvs5) {\n mesh.setVerticesData(VertexBuffer.UV5Kind, parsedGeometry.uvs5, parsedGeometry.uvs5._updatable);\n }\n if (parsedGeometry.uvs6) {\n mesh.setVerticesData(VertexBuffer.UV6Kind, parsedGeometry.uvs6, parsedGeometry.uvs6._updatable);\n }\n if (parsedGeometry.colors) {\n mesh.setVerticesData(VertexBuffer.ColorKind, Color4.CheckColors4(parsedGeometry.colors, parsedGeometry.positions.length / 3), parsedGeometry.colors._updatable);\n }\n if (parsedGeometry.matricesIndices) {\n if (!parsedGeometry.matricesIndices._isExpanded) {\n const floatIndices = [];\n for (let i = 0; i < parsedGeometry.matricesIndices.length; i++) {\n const matricesIndex = parsedGeometry.matricesIndices[i];\n floatIndices.push(matricesIndex & 0x000000ff);\n floatIndices.push((matricesIndex & 0x0000ff00) >> 8);\n floatIndices.push((matricesIndex & 0x00ff0000) >> 16);\n floatIndices.push(matricesIndex >> 24 & 0xff); // & 0xFF to convert to v + 256 if v < 0\n }\n mesh.setVerticesData(VertexBuffer.MatricesIndicesKind, floatIndices, parsedGeometry.matricesIndices._updatable);\n } else {\n delete parsedGeometry.matricesIndices._isExpanded;\n mesh.setVerticesData(VertexBuffer.MatricesIndicesKind, parsedGeometry.matricesIndices, parsedGeometry.matricesIndices._updatable);\n }\n }\n if (parsedGeometry.matricesIndicesExtra) {\n if (!parsedGeometry.matricesIndicesExtra._isExpanded) {\n const floatIndices = [];\n for (let i = 0; i < parsedGeometry.matricesIndicesExtra.length; i++) {\n const matricesIndex = parsedGeometry.matricesIndicesExtra[i];\n floatIndices.push(matricesIndex & 0x000000ff);\n floatIndices.push((matricesIndex & 0x0000ff00) >> 8);\n floatIndices.push((matricesIndex & 0x00ff0000) >> 16);\n floatIndices.push(matricesIndex >> 24 & 0xff); // & 0xFF to convert to v + 256 if v < 0\n }\n mesh.setVerticesData(VertexBuffer.MatricesIndicesExtraKind, floatIndices, parsedGeometry.matricesIndicesExtra._updatable);\n } else {\n delete parsedGeometry.matricesIndices._isExpanded;\n mesh.setVerticesData(VertexBuffer.MatricesIndicesExtraKind, parsedGeometry.matricesIndicesExtra, parsedGeometry.matricesIndicesExtra._updatable);\n }\n }\n if (parsedGeometry.matricesWeights) {\n Geometry._CleanMatricesWeights(parsedGeometry, mesh);\n mesh.setVerticesData(VertexBuffer.MatricesWeightsKind, parsedGeometry.matricesWeights, parsedGeometry.matricesWeights._updatable);\n }\n if (parsedGeometry.matricesWeightsExtra) {\n mesh.setVerticesData(VertexBuffer.MatricesWeightsExtraKind, parsedGeometry.matricesWeightsExtra, parsedGeometry.matricesWeights._updatable);\n }\n mesh.setIndices(parsedGeometry.indices, null);\n }\n // SubMeshes\n if (parsedGeometry.subMeshes) {\n mesh.subMeshes = [];\n for (let subIndex = 0; subIndex < parsedGeometry.subMeshes.length; subIndex++) {\n const parsedSubMesh = parsedGeometry.subMeshes[subIndex];\n SubMesh.AddToMesh(parsedSubMesh.materialIndex, parsedSubMesh.verticesStart, parsedSubMesh.verticesCount, parsedSubMesh.indexStart, parsedSubMesh.indexCount, mesh);\n }\n }\n // Flat shading\n if (mesh._shouldGenerateFlatShading) {\n mesh.convertToFlatShadedMesh();\n mesh._shouldGenerateFlatShading = false;\n }\n // Update\n mesh.computeWorldMatrix(true);\n scene.onMeshImportedObservable.notifyObservers(mesh);\n }\n static _CleanMatricesWeights(parsedGeometry, mesh) {\n const epsilon = 1e-3;\n if (!SceneLoaderFlags.CleanBoneMatrixWeights) {\n return;\n }\n let noInfluenceBoneIndex = 0.0;\n if (parsedGeometry.skeletonId > -1) {\n const skeleton = mesh.getScene().getLastSkeletonById(parsedGeometry.skeletonId);\n if (!skeleton) {\n return;\n }\n noInfluenceBoneIndex = skeleton.bones.length;\n } else {\n return;\n }\n const matricesIndices = mesh.getVerticesData(VertexBuffer.MatricesIndicesKind);\n const matricesIndicesExtra = mesh.getVerticesData(VertexBuffer.MatricesIndicesExtraKind);\n const matricesWeights = parsedGeometry.matricesWeights;\n const matricesWeightsExtra = parsedGeometry.matricesWeightsExtra;\n const influencers = parsedGeometry.numBoneInfluencer;\n const size = matricesWeights.length;\n for (let i = 0; i < size; i += 4) {\n let weight = 0.0;\n let firstZeroWeight = -1;\n for (let j = 0; j < 4; j++) {\n const w = matricesWeights[i + j];\n weight += w;\n if (w < epsilon && firstZeroWeight < 0) {\n firstZeroWeight = j;\n }\n }\n if (matricesWeightsExtra) {\n for (let j = 0; j < 4; j++) {\n const w = matricesWeightsExtra[i + j];\n weight += w;\n if (w < epsilon && firstZeroWeight < 0) {\n firstZeroWeight = j + 4;\n }\n }\n }\n if (firstZeroWeight < 0 || firstZeroWeight > influencers - 1) {\n firstZeroWeight = influencers - 1;\n }\n if (weight > epsilon) {\n const mweight = 1.0 / weight;\n for (let j = 0; j < 4; j++) {\n matricesWeights[i + j] *= mweight;\n }\n if (matricesWeightsExtra) {\n for (let j = 0; j < 4; j++) {\n matricesWeightsExtra[i + j] *= mweight;\n }\n }\n } else {\n if (firstZeroWeight >= 4) {\n matricesWeightsExtra[i + firstZeroWeight - 4] = 1.0 - weight;\n matricesIndicesExtra[i + firstZeroWeight - 4] = noInfluenceBoneIndex;\n } else {\n matricesWeights[i + firstZeroWeight] = 1.0 - weight;\n matricesIndices[i + firstZeroWeight] = noInfluenceBoneIndex;\n }\n }\n }\n mesh.setVerticesData(VertexBuffer.MatricesIndicesKind, matricesIndices);\n if (parsedGeometry.matricesWeightsExtra) {\n mesh.setVerticesData(VertexBuffer.MatricesIndicesExtraKind, matricesIndicesExtra);\n }\n }\n /**\n * Create a new geometry from persisted data (Using .babylon file format)\n * @param parsedVertexData defines the persisted data\n * @param scene defines the hosting scene\n * @param rootUrl defines the root url to use to load assets (like delayed data)\n * @returns the new geometry object\n */\n static Parse(parsedVertexData, scene, rootUrl) {\n const geometry = new Geometry(parsedVertexData.id, scene, undefined, parsedVertexData.updatable);\n geometry._loadedUniqueId = parsedVertexData.uniqueId;\n if (Tags) {\n Tags.AddTagsTo(geometry, parsedVertexData.tags);\n }\n if (parsedVertexData.delayLoadingFile) {\n geometry.delayLoadState = 4;\n geometry.delayLoadingFile = rootUrl + parsedVertexData.delayLoadingFile;\n geometry._boundingInfo = new BoundingInfo(Vector3.FromArray(parsedVertexData.boundingBoxMinimum), Vector3.FromArray(parsedVertexData.boundingBoxMaximum));\n geometry._delayInfo = [];\n if (parsedVertexData.hasUVs) {\n geometry._delayInfo.push(VertexBuffer.UVKind);\n }\n if (parsedVertexData.hasUVs2) {\n geometry._delayInfo.push(VertexBuffer.UV2Kind);\n }\n if (parsedVertexData.hasUVs3) {\n geometry._delayInfo.push(VertexBuffer.UV3Kind);\n }\n if (parsedVertexData.hasUVs4) {\n geometry._delayInfo.push(VertexBuffer.UV4Kind);\n }\n if (parsedVertexData.hasUVs5) {\n geometry._delayInfo.push(VertexBuffer.UV5Kind);\n }\n if (parsedVertexData.hasUVs6) {\n geometry._delayInfo.push(VertexBuffer.UV6Kind);\n }\n if (parsedVertexData.hasColors) {\n geometry._delayInfo.push(VertexBuffer.ColorKind);\n }\n if (parsedVertexData.hasMatricesIndices) {\n geometry._delayInfo.push(VertexBuffer.MatricesIndicesKind);\n }\n if (parsedVertexData.hasMatricesWeights) {\n geometry._delayInfo.push(VertexBuffer.MatricesWeightsKind);\n }\n geometry._delayLoadingFunction = VertexData.ImportVertexData;\n } else {\n VertexData.ImportVertexData(parsedVertexData, geometry);\n }\n scene.pushGeometry(geometry, true);\n return geometry;\n }\n}","map":{"version":3,"names":["Vector3","Color4","VertexData","VertexBuffer","SubMesh","SceneLoaderFlags","BoundingInfo","Tools","Tags","extractMinAndMax","EngineStore","useOpenGLOrientationForUV","CopyFloatData","Geometry","boundingBias","_boundingBias","value","copyFrom","clone","_updateBoundingInfo","CreateGeometryForMesh","mesh","geometry","RandomId","getScene","applyToMesh","meshes","_meshes","constructor","id","scene","vertexData","updatable","delayLoadState","_totalVertices","_isDisposed","_indexBufferIsUpdatable","_positionsCache","_parentContainer","useBoundingInfoFromGeometry","_scene","LastCreatedScene","uniqueId","getUniqueId","_engine","getEngine","_vertexBuffers","_indices","_updatable","setAllVerticesData","getCaps","vertexArrayObject","_vertexArrayObjects","computeWorldMatrix","extend","_extend","isReady","doNotSerialize","index","length","_rebuild","_indexBuffer","createIndexBuffer","buffers","Set","key","add","getWrapperBuffer","forEach","buffer","applyToGeometry","_notifyUpdate","setVerticesData","kind","data","stride","Array","isArray","Float32Array","postponeInternalCreation","label","setVerticesBuffer","removeVerticesData","dispose","_disposeVertexArrayObjects","totalVertices","disposeExistingBuffer","getKind","_buffer","_increaseReferences","numOfMeshes","PositionKind","_maxVerticesCount","_updateExtend","getFloatData","_resetPointsArrayCache","minimum","Number","MAX_VALUE","maximum","buildBoundingInfo","_createGlobalSubMesh","isUnIndexed","synchronizeInstances","updateVerticesDataDirectly","offset","useBytes","vertexBuffer","getVertexBuffer","updateDirectly","updateVerticesData","updateExtends","update","hasBoundingInfo","getBoundingInfo","reConstruct","subMeshes","subMesh","refreshBoundingInfo","_bind","effect","indexToBind","overrideVertexBuffers","overrideVertexArrayObjects","undefined","vbs","getVertexBuffers","bindBuffers","vaos","engine","recordVertexArrayObject","bindVertexArrayObject","getTotalVertices","getVerticesData","copyWhenShared","forceCopy","copyVerticesData","getSize","getData","type","byteOffset","byteStride","normalized","isVertexBufferUpdatable","vb","isUpdatable","isVerticesDataPresent","_delayInfo","indexOf","getVerticesDataKinds","result","push","updateIndices","indices","gpuMemoryOnly","setIndices","needToUpdateSubMeshes","slice","updateDynamicIndexBuffer","setIndexBuffer","indexBuffer","totalIndices","_totalIndices","is32Bits","dontForceSubMeshRecreation","_releaseBuffer","getTotalIndices","getIndices","orig","getIndexBuffer","_releaseVertexArrayObject","releaseVertexArrayObject","releaseForMesh","shouldDispose","splice","_invalidateInstanceVertexArrayObject","_geometry","previousGeometry","_internalAbstractMeshDataInfo","_positions","pushGeometry","_applyToMesh","_boundingInfo","setBoundingInfo","create","_syncGeometryWithMorphTargetManager","onGeometryUpdated","_markSubMeshesAsAttributesDirty","load","onLoaded","_queueLoad","delayLoadingFile","addPendingData","_loadFile","_delayLoadingFunction","JSON","parse","removePendingData","toLeftHanded","tIndices","i","tTemp","tPositions","tNormals","NormalKind","_generatePointsArray","arrayIdx","FromArray","set","isDisposed","removeGeometry","geometries","copy","stopChecking","serialize","serializationObject","HasTags","tags","GetTags","_toNumberArray","origin","prototype","call","clearCachedData","vbName","Object","hasOwnProperty","_data","serializeVerticeData","positions","normals","TangentKind","tangents","UVKind","uvs","UV2Kind","uvs2","UV3Kind","uvs3","UV4Kind","uvs4","UV5Kind","uvs5","UV6Kind","uvs6","ColorKind","colors","MatricesIndicesKind","matricesIndices","_isExpanded","MatricesWeightsKind","matricesWeights","ExtractFromMesh","_GetGeometryByLoadedUniqueId","_loadedUniqueId","_ImportGeometry","parsedGeometry","geometryUniqueId","geometryId","getGeometryById","ArrayBuffer","binaryInfo","_binaryInfo","positionsAttrDesc","count","positionsData","normalsAttrDesc","normalsData","tangetsAttrDesc","tangentsData","uvsAttrDesc","uvsData","uvs2AttrDesc","uvs2Data","uvs3AttrDesc","uvs3Data","uvs4AttrDesc","uvs4Data","uvs5AttrDesc","uvs5Data","uvs6AttrDesc","uvs6Data","colorsAttrDesc","colorsData","matricesIndicesAttrDesc","matricesIndicesData","Int32Array","floatIndices","matricesIndicesExtraAttrDesc","MatricesIndicesExtraKind","matricesWeightsAttrDesc","matricesWeightsData","indicesAttrDesc","indicesData","subMeshesAttrDesc","subMeshesData","materialIndex","verticesStart","verticesCount","indexStart","indexCount","AddToMesh","CheckColors4","matricesIndex","matricesIndicesExtra","_CleanMatricesWeights","matricesWeightsExtra","MatricesWeightsExtraKind","subIndex","parsedSubMesh","_shouldGenerateFlatShading","convertToFlatShadedMesh","onMeshImportedObservable","notifyObservers","epsilon","CleanBoneMatrixWeights","noInfluenceBoneIndex","skeletonId","skeleton","getLastSkeletonById","bones","influencers","numBoneInfluencer","size","weight","firstZeroWeight","j","w","mweight","Parse","parsedVertexData","rootUrl","AddTagsTo","boundingBoxMinimum","boundingBoxMaximum","hasUVs","hasUVs2","hasUVs3","hasUVs4","hasUVs5","hasUVs6","hasColors","hasMatricesIndices","hasMatricesWeights","ImportVertexData"],"sources":["F:/workspace/202226701027/huinongbao-app/node_modules/@babylonjs/core/Meshes/geometry.js"],"sourcesContent":["import { Vector3 } from \"../Maths/math.vector.js\";\nimport { Color4 } from \"../Maths/math.color.js\";\nimport { VertexData } from \"../Meshes/mesh.vertexData.js\";\nimport { VertexBuffer } from \"../Buffers/buffer.js\";\nimport { SubMesh } from \"../Meshes/subMesh.js\";\nimport { SceneLoaderFlags } from \"../Loading/sceneLoaderFlags.js\";\nimport { BoundingInfo } from \"../Culling/boundingInfo.js\";\n\nimport { Tools } from \"../Misc/tools.js\";\nimport { Tags } from \"../Misc/tags.js\";\nimport { extractMinAndMax } from \"../Maths/math.functions.js\";\nimport { EngineStore } from \"../Engines/engineStore.js\";\nimport { useOpenGLOrientationForUV } from \"../Compat/compatibilityOptions.js\";\nimport { CopyFloatData } from \"../Buffers/bufferUtils.js\";\n/**\n * Class used to store geometry data (vertex buffers + index buffer)\n */\nexport class Geometry {\n /**\n * Gets or sets the Bias Vector to apply on the bounding elements (box/sphere), the max extend is computed as v += v * bias.x + bias.y, the min is computed as v -= v * bias.x + bias.y\n */\n get boundingBias() {\n return this._boundingBias;\n }\n /**\n * Gets or sets the Bias Vector to apply on the bounding elements (box/sphere), the max extend is computed as v += v * bias.x + bias.y, the min is computed as v -= v * bias.x + bias.y\n */\n set boundingBias(value) {\n if (this._boundingBias) {\n this._boundingBias.copyFrom(value);\n }\n else {\n this._boundingBias = value.clone();\n }\n this._updateBoundingInfo(true, null);\n }\n /**\n * Static function used to attach a new empty geometry to a mesh\n * @param mesh defines the mesh to attach the geometry to\n * @returns the new Geometry\n */\n static CreateGeometryForMesh(mesh) {\n const geometry = new Geometry(Geometry.RandomId(), mesh.getScene());\n geometry.applyToMesh(mesh);\n return geometry;\n }\n /** Get the list of meshes using this geometry */\n get meshes() {\n return this._meshes;\n }\n /**\n * Creates a new geometry\n * @param id defines the unique ID\n * @param scene defines the hosting scene\n * @param vertexData defines the VertexData used to get geometry data\n * @param updatable defines if geometry must be updatable (false by default)\n * @param mesh defines the mesh that will be associated with the geometry\n */\n constructor(id, scene, vertexData, updatable = false, mesh = null) {\n /**\n * Gets the delay loading state of the geometry (none by default which means not delayed)\n */\n this.delayLoadState = 0;\n this._totalVertices = 0;\n this._isDisposed = false;\n this._indexBufferIsUpdatable = false;\n this._positionsCache = [];\n /** @internal */\n this._parentContainer = null;\n /**\n * If set to true (false by default), the bounding info applied to the meshes sharing this geometry will be the bounding info defined at the class level\n * and won't be computed based on the vertex positions (which is what we get when useBoundingInfoFromGeometry = false)\n */\n this.useBoundingInfoFromGeometry = false;\n this._scene = scene || EngineStore.LastCreatedScene;\n if (!this._scene) {\n return;\n }\n this.id = id;\n this.uniqueId = this._scene.getUniqueId();\n this._engine = this._scene.getEngine();\n this._meshes = [];\n //Init vertex buffer cache\n this._vertexBuffers = {};\n this._indices = [];\n this._updatable = updatable;\n // vertexData\n if (vertexData) {\n this.setAllVerticesData(vertexData, updatable);\n }\n else {\n this._totalVertices = 0;\n }\n if (this._engine.getCaps().vertexArrayObject) {\n this._vertexArrayObjects = {};\n }\n // applyToMesh\n if (mesh) {\n this.applyToMesh(mesh);\n mesh.computeWorldMatrix(true);\n }\n }\n /**\n * Gets the current extend of the geometry\n */\n get extend() {\n return this._extend;\n }\n /**\n * Gets the hosting scene\n * @returns the hosting Scene\n */\n getScene() {\n return this._scene;\n }\n /**\n * Gets the hosting engine\n * @returns the hosting Engine\n */\n getEngine() {\n return this._engine;\n }\n /**\n * Defines if the geometry is ready to use\n * @returns true if the geometry is ready to be used\n */\n isReady() {\n return this.delayLoadState === 1 || this.delayLoadState === 0;\n }\n /**\n * Gets a value indicating that the geometry should not be serialized\n */\n get doNotSerialize() {\n for (let index = 0; index < this._meshes.length; index++) {\n if (!this._meshes[index].doNotSerialize) {\n return false;\n }\n }\n return true;\n }\n /** @internal */\n _rebuild() {\n if (this._vertexArrayObjects) {\n this._vertexArrayObjects = {};\n }\n // Index buffer\n if (this._meshes.length !== 0 && this._indices) {\n this._indexBuffer = this._engine.createIndexBuffer(this._indices, this._updatable, \"Geometry_\" + this.id + \"_IndexBuffer\");\n }\n // Vertex buffers\n const buffers = new Set();\n for (const key in this._vertexBuffers) {\n buffers.add(this._vertexBuffers[key].getWrapperBuffer());\n }\n buffers.forEach((buffer) => {\n buffer._rebuild();\n });\n }\n /**\n * Affects all geometry data in one call\n * @param vertexData defines the geometry data\n * @param updatable defines if the geometry must be flagged as updatable (false as default)\n */\n setAllVerticesData(vertexData, updatable) {\n vertexData.applyToGeometry(this, updatable);\n this._notifyUpdate();\n }\n /**\n * Set specific vertex data\n * @param kind defines the data kind (Position, normal, etc...)\n * @param data defines the vertex data to use\n * @param updatable defines if the vertex must be flagged as updatable (false as default)\n * @param stride defines the stride to use (0 by default). This value is deduced from the kind value if not specified\n */\n setVerticesData(kind, data, updatable = false, stride) {\n if (updatable && Array.isArray(data)) {\n // to avoid converting to Float32Array at each draw call in engine.updateDynamicVertexBuffer, we make the conversion a single time here\n data = new Float32Array(data);\n }\n const buffer = new VertexBuffer(this._engine, data, kind, {\n updatable,\n postponeInternalCreation: this._meshes.length === 0,\n stride,\n label: \"Geometry_\" + this.id + \"_\" + kind,\n });\n this.setVerticesBuffer(buffer);\n }\n /**\n * Removes a specific vertex data\n * @param kind defines the data kind (Position, normal, etc...)\n */\n removeVerticesData(kind) {\n if (this._vertexBuffers[kind]) {\n this._vertexBuffers[kind].dispose();\n delete this._vertexBuffers[kind];\n }\n if (this._vertexArrayObjects) {\n this._disposeVertexArrayObjects();\n }\n }\n /**\n * Affect a vertex buffer to the geometry. the vertexBuffer.getKind() function is used to determine where to store the data\n * @param buffer defines the vertex buffer to use\n * @param totalVertices defines the total number of vertices for position kind (could be null)\n * @param disposeExistingBuffer disposes the existing buffer, if any (default: true)\n */\n setVerticesBuffer(buffer, totalVertices = null, disposeExistingBuffer = true) {\n const kind = buffer.getKind();\n if (this._vertexBuffers[kind] && disposeExistingBuffer) {\n this._vertexBuffers[kind].dispose();\n }\n if (buffer._buffer) {\n buffer._buffer._increaseReferences();\n }\n this._vertexBuffers[kind] = buffer;\n const meshes = this._meshes;\n const numOfMeshes = meshes.length;\n if (kind === VertexBuffer.PositionKind) {\n this._totalVertices = totalVertices ?? buffer._maxVerticesCount;\n this._updateExtend(buffer.getFloatData(this._totalVertices));\n this._resetPointsArrayCache();\n // this._extend can be empty if buffer.getFloatData(this._totalVertices) returned null\n const minimum = (this._extend && this._extend.minimum) || new Vector3(-Number.MAX_VALUE, -Number.MAX_VALUE, -Number.MAX_VALUE);\n const maximum = (this._extend && this._extend.maximum) || new Vector3(Number.MAX_VALUE, Number.MAX_VALUE, Number.MAX_VALUE);\n for (let index = 0; index < numOfMeshes; index++) {\n const mesh = meshes[index];\n mesh.buildBoundingInfo(minimum, maximum);\n mesh._createGlobalSubMesh(mesh.isUnIndexed);\n mesh.computeWorldMatrix(true);\n mesh.synchronizeInstances();\n }\n }\n this._notifyUpdate(kind);\n }\n /**\n * Update a specific vertex buffer\n * This function will directly update the underlying DataBuffer according to the passed numeric array or Float32Array\n * It will do nothing if the buffer is not updatable\n * @param kind defines the data kind (Position, normal, etc...)\n * @param data defines the data to use\n * @param offset defines the offset in the target buffer where to store the data\n * @param useBytes set to true if the offset is in bytes\n */\n updateVerticesDataDirectly(kind, data, offset, useBytes = false) {\n const vertexBuffer = this.getVertexBuffer(kind);\n if (!vertexBuffer) {\n return;\n }\n vertexBuffer.updateDirectly(data, offset, useBytes);\n this._notifyUpdate(kind);\n }\n /**\n * Update a specific vertex buffer\n * This function will create a new buffer if the current one is not updatable\n * @param kind defines the data kind (Position, normal, etc...)\n * @param data defines the data to use\n * @param updateExtends defines if the geometry extends must be recomputed (false by default)\n */\n updateVerticesData(kind, data, updateExtends = false) {\n const vertexBuffer = this.getVertexBuffer(kind);\n if (!vertexBuffer) {\n return;\n }\n vertexBuffer.update(data);\n if (kind === VertexBuffer.PositionKind) {\n this._updateBoundingInfo(updateExtends, data);\n }\n this._notifyUpdate(kind);\n }\n _updateBoundingInfo(updateExtends, data) {\n if (updateExtends) {\n this._updateExtend(data);\n }\n this._resetPointsArrayCache();\n if (updateExtends) {\n const meshes = this._meshes;\n for (const mesh of meshes) {\n if (mesh.hasBoundingInfo) {\n mesh.getBoundingInfo().reConstruct(this._extend.minimum, this._extend.maximum);\n }\n else {\n mesh.buildBoundingInfo(this._extend.minimum, this._extend.maximum);\n }\n const subMeshes = mesh.subMeshes;\n for (const subMesh of subMeshes) {\n subMesh.refreshBoundingInfo();\n }\n }\n }\n }\n /**\n * @internal\n */\n _bind(effect, indexToBind, overrideVertexBuffers, overrideVertexArrayObjects) {\n if (!effect) {\n return;\n }\n if (indexToBind === undefined) {\n indexToBind = this._indexBuffer;\n }\n const vbs = this.getVertexBuffers();\n if (!vbs) {\n return;\n }\n if (indexToBind != this._indexBuffer || (!this._vertexArrayObjects && !overrideVertexArrayObjects)) {\n this._engine.bindBuffers(vbs, indexToBind, effect, overrideVertexBuffers);\n return;\n }\n const vaos = overrideVertexArrayObjects ? overrideVertexArrayObjects : this._vertexArrayObjects;\n const engine = this._engine;\n // Using VAO\n if (!vaos[effect.key]) {\n vaos[effect.key] = engine.recordVertexArrayObject(vbs, indexToBind, effect, overrideVertexBuffers);\n }\n engine.bindVertexArrayObject(vaos[effect.key], indexToBind);\n }\n /**\n * Gets total number of vertices\n * @returns the total number of vertices\n */\n getTotalVertices() {\n if (!this.isReady()) {\n return 0;\n }\n return this._totalVertices;\n }\n /**\n * Gets a specific vertex data attached to this geometry. Float data is constructed if the vertex buffer data cannot be returned directly.\n * @param kind defines the data kind (Position, normal, etc...)\n * @param copyWhenShared defines if the returned array must be cloned upon returning it if the current geometry is shared between multiple meshes\n * @param forceCopy defines a boolean indicating that the returned array must be cloned upon returning it\n * @returns a float array containing vertex data\n */\n getVerticesData(kind, copyWhenShared, forceCopy) {\n const vertexBuffer = this.getVertexBuffer(kind);\n if (!vertexBuffer) {\n return null;\n }\n return vertexBuffer.getFloatData(this._totalVertices, forceCopy || (copyWhenShared && this._meshes.length !== 1));\n }\n /**\n * Copies the requested vertex data kind into the given vertex data map. Float data is constructed if the map doesn't have the data.\n * @param kind defines the data kind (Position, normal, etc...)\n * @param vertexData defines the map that stores the resulting data\n */\n copyVerticesData(kind, vertexData) {\n const vertexBuffer = this.getVertexBuffer(kind);\n if (!vertexBuffer) {\n return;\n }\n vertexData[kind] || (vertexData[kind] = new Float32Array(this._totalVertices * vertexBuffer.getSize()));\n const data = vertexBuffer.getData();\n if (data) {\n CopyFloatData(data, vertexBuffer.getSize(), vertexBuffer.type, vertexBuffer.byteOffset, vertexBuffer.byteStride, vertexBuffer.normalized, this._totalVertices, vertexData[kind]);\n }\n }\n /**\n * Returns a boolean defining if the vertex data for the requested `kind` is updatable\n * @param kind defines the data kind (Position, normal, etc...)\n * @returns true if the vertex buffer with the specified kind is updatable\n */\n isVertexBufferUpdatable(kind) {\n const vb = this._vertexBuffers[kind];\n if (!vb) {\n return false;\n }\n return vb.isUpdatable();\n }\n /**\n * Gets a specific vertex buffer\n * @param kind defines the data kind (Position, normal, etc...)\n * @returns a VertexBuffer\n */\n getVertexBuffer(kind) {\n if (!this.isReady()) {\n return null;\n }\n return this._vertexBuffers[kind];\n }\n /**\n * Returns all vertex buffers\n * @returns an object holding all vertex buffers indexed by kind\n */\n getVertexBuffers() {\n if (!this.isReady()) {\n return null;\n }\n return this._vertexBuffers;\n }\n /**\n * Gets a boolean indicating if specific vertex buffer is present\n * @param kind defines the data kind (Position, normal, etc...)\n * @returns true if data is present\n */\n isVerticesDataPresent(kind) {\n if (!this._vertexBuffers) {\n if (this._delayInfo) {\n return this._delayInfo.indexOf(kind) !== -1;\n }\n return false;\n }\n return this._vertexBuffers[kind] !== undefined;\n }\n /**\n * Gets a list of all attached data kinds (Position, normal, etc...)\n * @returns a list of string containing all kinds\n */\n getVerticesDataKinds() {\n const result = [];\n let kind;\n if (!this._vertexBuffers && this._delayInfo) {\n for (kind in this._delayInfo) {\n result.push(kind);\n }\n }\n else {\n for (kind in this._vertexBuffers) {\n result.push(kind);\n }\n }\n return result;\n }\n /**\n * Update index buffer\n * @param indices defines the indices to store in the index buffer\n * @param offset defines the offset in the target buffer where to store the data\n * @param gpuMemoryOnly defines a boolean indicating that only the GPU memory must be updated leaving the CPU version of the indices unchanged (false by default)\n */\n updateIndices(indices, offset, gpuMemoryOnly = false) {\n if (!this._indexBuffer) {\n return;\n }\n if (!this._indexBufferIsUpdatable) {\n this.setIndices(indices, null, true);\n }\n else {\n const needToUpdateSubMeshes = indices.length !== this._indices.length;\n if (!gpuMemoryOnly) {\n this._indices = indices.slice();\n }\n this._engine.updateDynamicIndexBuffer(this._indexBuffer, indices, offset);\n if (needToUpdateSubMeshes) {\n for (const mesh of this._meshes) {\n mesh._createGlobalSubMesh(true);\n }\n }\n }\n }\n /**\n * Sets the index buffer for this geometry.\n * @param indexBuffer Defines the index buffer to use for this geometry\n * @param totalVertices Defines the total number of vertices used by the buffer\n * @param totalIndices Defines the total number of indices in the index buffer\n */\n setIndexBuffer(indexBuffer, totalVertices, totalIndices) {\n this._indices = [];\n this._indexBufferIsUpdatable = false;\n this._indexBuffer = indexBuffer;\n this._totalVertices = totalVertices;\n this._totalIndices = totalIndices;\n indexBuffer.is32Bits || (indexBuffer.is32Bits = this._totalIndices > 65535);\n for (const mesh of this._meshes) {\n mesh._createGlobalSubMesh(true);\n mesh.synchronizeInstances();\n }\n this._notifyUpdate();\n }\n /**\n * Creates a new index buffer\n * @param indices defines the indices to store in the index buffer\n * @param totalVertices defines the total number of vertices (could be null)\n * @param updatable defines if the index buffer must be flagged as updatable (false by default)\n * @param dontForceSubMeshRecreation defines a boolean indicating that we don't want to force the recreation of sub-meshes if we don't have to (false by default)\n */\n setIndices(indices, totalVertices = null, updatable = false, dontForceSubMeshRecreation = false) {\n if (this._indexBuffer) {\n this._engine._releaseBuffer(this._indexBuffer);\n }\n this._indices = indices;\n this._indexBufferIsUpdatable = updatable;\n if (this._meshes.length !== 0 && this._indices) {\n this._indexBuffer = this._engine.createIndexBuffer(this._indices, updatable, \"Geometry_\" + this.id + \"_IndexBuffer\");\n }\n if (totalVertices != undefined) {\n // including null and undefined\n this._totalVertices = totalVertices;\n }\n for (const mesh of this._meshes) {\n mesh._createGlobalSubMesh(!dontForceSubMeshRecreation);\n mesh.synchronizeInstances();\n }\n this._notifyUpdate();\n }\n /**\n * Return the total number of indices\n * @returns the total number of indices\n */\n getTotalIndices() {\n if (!this.isReady()) {\n return 0;\n }\n return this._totalIndices !== undefined ? this._totalIndices : this._indices.length;\n }\n /**\n * Gets the index buffer array\n * @param copyWhenShared defines if the returned array must be cloned upon returning it if the current geometry is shared between multiple meshes\n * @param forceCopy defines a boolean indicating that the returned array must be cloned upon returning it\n * @returns the index buffer array\n */\n getIndices(copyWhenShared, forceCopy) {\n if (!this.isReady()) {\n return null;\n }\n const orig = this._indices;\n if (!forceCopy && (!copyWhenShared || this._meshes.length === 1)) {\n return orig;\n }\n else {\n return orig.slice();\n }\n }\n /**\n * Gets the index buffer\n * @returns the index buffer\n */\n getIndexBuffer() {\n if (!this.isReady()) {\n return null;\n }\n return this._indexBuffer;\n }\n /**\n * @internal\n */\n _releaseVertexArrayObject(effect = null) {\n if (!effect || !this._vertexArrayObjects) {\n return;\n }\n if (this._vertexArrayObjects[effect.key]) {\n this._engine.releaseVertexArrayObject(this._vertexArrayObjects[effect.key]);\n delete this._vertexArrayObjects[effect.key];\n }\n }\n /**\n * Release the associated resources for a specific mesh\n * @param mesh defines the source mesh\n * @param shouldDispose defines if the geometry must be disposed if there is no more mesh pointing to it\n */\n releaseForMesh(mesh, shouldDispose) {\n const meshes = this._meshes;\n const index = meshes.indexOf(mesh);\n if (index === -1) {\n return;\n }\n meshes.splice(index, 1);\n if (this._vertexArrayObjects) {\n mesh._invalidateInstanceVertexArrayObject();\n }\n mesh._geometry = null;\n if (meshes.length === 0 && shouldDispose) {\n this.dispose();\n }\n }\n /**\n * Apply current geometry to a given mesh\n * @param mesh defines the mesh to apply geometry to\n */\n applyToMesh(mesh) {\n if (mesh._geometry === this) {\n return;\n }\n const previousGeometry = mesh._geometry;\n if (previousGeometry) {\n previousGeometry.releaseForMesh(mesh);\n }\n if (this._vertexArrayObjects) {\n mesh._invalidateInstanceVertexArrayObject();\n }\n const meshes = this._meshes;\n // must be done before setting vertexBuffers because of mesh._createGlobalSubMesh()\n mesh._geometry = this;\n mesh._internalAbstractMeshDataInfo._positions = null;\n this._scene.pushGeometry(this);\n meshes.push(mesh);\n if (this.isReady()) {\n this._applyToMesh(mesh);\n }\n else if (this._boundingInfo) {\n mesh.setBoundingInfo(this._boundingInfo);\n }\n }\n _updateExtend(data = null) {\n if (this.useBoundingInfoFromGeometry && this._boundingInfo) {\n this._extend = {\n minimum: this._boundingInfo.minimum.clone(),\n maximum: this._boundingInfo.maximum.clone(),\n };\n }\n else {\n if (!data) {\n data = this.getVerticesData(VertexBuffer.PositionKind);\n // This can happen if the buffer comes from a Hardware Buffer where\n // The data have not been uploaded by Babylon. (ex: Compute Shaders and Storage Buffers)\n if (!data) {\n return;\n }\n }\n this._extend = extractMinAndMax(data, 0, this._totalVertices, this.boundingBias, 3);\n }\n }\n _applyToMesh(mesh) {\n const numOfMeshes = this._meshes.length;\n // vertexBuffers\n for (const kind in this._vertexBuffers) {\n if (numOfMeshes === 1) {\n this._vertexBuffers[kind].create();\n }\n if (kind === VertexBuffer.PositionKind) {\n if (!this._extend) {\n this._updateExtend();\n }\n mesh.buildBoundingInfo(this._extend.minimum, this._extend.maximum);\n mesh._createGlobalSubMesh(mesh.isUnIndexed);\n //bounding info was just created again, world matrix should be applied again.\n mesh._updateBoundingInfo();\n }\n }\n // indexBuffer\n if (numOfMeshes === 1 && this._indices && this._indices.length > 0) {\n this._indexBuffer = this._engine.createIndexBuffer(this._indices, this._updatable, \"Geometry_\" + this.id + \"_IndexBuffer\");\n }\n // morphTargets\n mesh._syncGeometryWithMorphTargetManager();\n // instances\n mesh.synchronizeInstances();\n }\n _notifyUpdate(kind) {\n if (this.onGeometryUpdated) {\n this.onGeometryUpdated(this, kind);\n }\n if (this._vertexArrayObjects) {\n this._disposeVertexArrayObjects();\n }\n for (const mesh of this._meshes) {\n mesh._markSubMeshesAsAttributesDirty();\n }\n }\n /**\n * Load the geometry if it was flagged as delay loaded\n * @param scene defines the hosting scene\n * @param onLoaded defines a callback called when the geometry is loaded\n */\n load(scene, onLoaded) {\n if (this.delayLoadState === 2) {\n return;\n }\n if (this.isReady()) {\n if (onLoaded) {\n onLoaded();\n }\n return;\n }\n this.delayLoadState = 2;\n this._queueLoad(scene, onLoaded);\n }\n _queueLoad(scene, onLoaded) {\n if (!this.delayLoadingFile) {\n return;\n }\n scene.addPendingData(this);\n scene._loadFile(this.delayLoadingFile, (data) => {\n if (!this._delayLoadingFunction) {\n return;\n }\n this._delayLoadingFunction(JSON.parse(data), this);\n this.delayLoadState = 1;\n this._delayInfo = [];\n scene.removePendingData(this);\n const meshes = this._meshes;\n const numOfMeshes = meshes.length;\n for (let index = 0; index < numOfMeshes; index++) {\n this._applyToMesh(meshes[index]);\n }\n if (onLoaded) {\n onLoaded();\n }\n }, undefined, true);\n }\n /**\n * Invert the geometry to move from a right handed system to a left handed one.\n */\n toLeftHanded() {\n // Flip faces\n const tIndices = this.getIndices(false);\n if (tIndices != null && tIndices.length > 0) {\n for (let i = 0; i < tIndices.length; i += 3) {\n const tTemp = tIndices[i + 0];\n tIndices[i + 0] = tIndices[i + 2];\n tIndices[i + 2] = tTemp;\n }\n this.setIndices(tIndices);\n }\n // Negate position.z\n const tPositions = this.getVerticesData(VertexBuffer.PositionKind, false);\n if (tPositions != null && tPositions.length > 0) {\n for (let i = 0; i < tPositions.length; i += 3) {\n tPositions[i + 2] = -tPositions[i + 2];\n }\n this.setVerticesData(VertexBuffer.PositionKind, tPositions, false);\n }\n // Negate normal.z\n const tNormals = this.getVerticesData(VertexBuffer.NormalKind, false);\n if (tNormals != null && tNormals.length > 0) {\n for (let i = 0; i < tNormals.length; i += 3) {\n tNormals[i + 2] = -tNormals[i + 2];\n }\n this.setVerticesData(VertexBuffer.NormalKind, tNormals, false);\n }\n }\n // Cache\n /** @internal */\n _resetPointsArrayCache() {\n this._positions = null;\n }\n /** @internal */\n _generatePointsArray() {\n if (this._positions) {\n return true;\n }\n const data = this.getVerticesData(VertexBuffer.PositionKind);\n if (!data || data.length === 0) {\n return false;\n }\n for (let index = this._positionsCache.length * 3, arrayIdx = this._positionsCache.length; index < data.length; index += 3, ++arrayIdx) {\n this._positionsCache[arrayIdx] = Vector3.FromArray(data, index);\n }\n for (let index = 0, arrayIdx = 0; index < data.length; index += 3, ++arrayIdx) {\n this._positionsCache[arrayIdx].set(data[0 + index], data[1 + index], data[2 + index]);\n }\n // just in case the number of positions was reduced, splice the array\n this._positionsCache.length = data.length / 3;\n this._positions = this._positionsCache;\n return true;\n }\n /**\n * Gets a value indicating if the geometry is disposed\n * @returns true if the geometry was disposed\n */\n isDisposed() {\n return this._isDisposed;\n }\n _disposeVertexArrayObjects() {\n if (this._vertexArrayObjects) {\n for (const kind in this._vertexArrayObjects) {\n this._engine.releaseVertexArrayObject(this._vertexArrayObjects[kind]);\n }\n this._vertexArrayObjects = {}; // Will trigger a rebuild of the VAO if supported\n const meshes = this._meshes;\n const numOfMeshes = meshes.length;\n for (let index = 0; index < numOfMeshes; index++) {\n meshes[index]._invalidateInstanceVertexArrayObject();\n }\n }\n }\n /**\n * Free all associated resources\n */\n dispose() {\n const meshes = this._meshes;\n const numOfMeshes = meshes.length;\n let index;\n for (index = 0; index < numOfMeshes; index++) {\n this.releaseForMesh(meshes[index]);\n }\n this._meshes.length = 0;\n this._disposeVertexArrayObjects();\n for (const kind in this._vertexBuffers) {\n this._vertexBuffers[kind].dispose();\n }\n this._vertexBuffers = {};\n this._totalVertices = 0;\n if (this._indexBuffer) {\n this._engine._releaseBuffer(this._indexBuffer);\n }\n this._indexBuffer = null;\n this._indices = [];\n this.delayLoadState = 0;\n this.delayLoadingFile = null;\n this._delayLoadingFunction = null;\n this._delayInfo = [];\n this._boundingInfo = null;\n this._scene.removeGeometry(this);\n if (this._parentContainer) {\n const index = this._parentContainer.geometries.indexOf(this);\n if (index > -1) {\n this._parentContainer.geometries.splice(index, 1);\n }\n this._parentContainer = null;\n }\n this._isDisposed = true;\n }\n /**\n * Clone the current geometry into a new geometry\n * @param id defines the unique ID of the new geometry\n * @returns a new geometry object\n */\n copy(id) {\n const vertexData = new VertexData();\n vertexData.indices = [];\n const indices = this.getIndices();\n if (indices) {\n for (let index = 0; index < indices.length; index++) {\n vertexData.indices.push(indices[index]);\n }\n }\n let updatable = false;\n let stopChecking = false;\n let kind;\n for (kind in this._vertexBuffers) {\n // using slice() to make a copy of the array and not just reference it\n const data = this.getVerticesData(kind);\n if (data) {\n if (data instanceof Float32Array) {\n vertexData.set(new Float32Array(data), kind);\n }\n else {\n vertexData.set(data.slice(0), kind);\n }\n if (!stopChecking) {\n const vb = this.getVertexBuffer(kind);\n if (vb) {\n updatable = vb.isUpdatable();\n stopChecking = !updatable;\n }\n }\n }\n }\n const geometry = new Geometry(id, this._scene, vertexData, updatable);\n geometry.delayLoadState = this.delayLoadState;\n geometry.delayLoadingFile = this.delayLoadingFile;\n geometry._delayLoadingFunction = this._delayLoadingFunction;\n for (kind in this._delayInfo) {\n geometry._delayInfo = geometry._delayInfo || [];\n geometry._delayInfo.push(kind);\n }\n // Bounding info\n geometry._boundingInfo = new BoundingInfo(this._extend.minimum, this._extend.maximum);\n return geometry;\n }\n /**\n * Serialize the current geometry info (and not the vertices data) into a JSON object\n * @returns a JSON representation of the current geometry data (without the vertices data)\n */\n serialize() {\n const serializationObject = {};\n serializationObject.id = this.id;\n serializationObject.uniqueId = this.uniqueId;\n serializationObject.updatable = this._updatable;\n if (Tags && Tags.HasTags(this)) {\n serializationObject.tags = Tags.GetTags(this);\n }\n return serializationObject;\n }\n _toNumberArray(origin) {\n if (Array.isArray(origin)) {\n return origin;\n }\n else {\n return Array.prototype.slice.call(origin);\n }\n }\n /**\n * Release any memory retained by the cached data on the Geometry.\n *\n * Call this function to reduce memory footprint of the mesh.\n * Vertex buffers will not store CPU data anymore (this will prevent picking, collisions or physics to work correctly)\n */\n clearCachedData() {\n this._indices = [];\n this._resetPointsArrayCache();\n for (const vbName in this._vertexBuffers) {\n if (!Object.prototype.hasOwnProperty.call(this._vertexBuffers, vbName)) {\n continue;\n }\n this._vertexBuffers[vbName]._buffer._data = null;\n }\n }\n /**\n * Serialize all vertices data into a JSON object\n * @returns a JSON representation of the current geometry data\n */\n serializeVerticeData() {\n const serializationObject = this.serialize();\n if (this.isVerticesDataPresent(VertexBuffer.PositionKind)) {\n serializationObject.positions = this._toNumberArray(this.getVerticesData(VertexBuffer.PositionKind));\n if (this.isVertexBufferUpdatable(VertexBuffer.PositionKind)) {\n serializationObject.positions._updatable = true;\n }\n }\n if (this.isVerticesDataPresent(VertexBuffer.NormalKind)) {\n serializationObject.normals = this._toNumberArray(this.getVerticesData(VertexBuffer.NormalKind));\n if (this.isVertexBufferUpdatable(VertexBuffer.NormalKind)) {\n serializationObject.normals._updatable = true;\n }\n }\n if (this.isVerticesDataPresent(VertexBuffer.TangentKind)) {\n serializationObject.tangents = this._toNumberArray(this.getVerticesData(VertexBuffer.TangentKind));\n if (this.isVertexBufferUpdatable(VertexBuffer.TangentKind)) {\n serializationObject.tangents._updatable = true;\n }\n }\n if (this.isVerticesDataPresent(VertexBuffer.UVKind)) {\n serializationObject.uvs = this._toNumberArray(this.getVerticesData(VertexBuffer.UVKind));\n if (this.isVertexBufferUpdatable(VertexBuffer.UVKind)) {\n serializationObject.uvs._updatable = true;\n }\n }\n if (this.isVerticesDataPresent(VertexBuffer.UV2Kind)) {\n serializationObject.uvs2 = this._toNumberArray(this.getVerticesData(VertexBuffer.UV2Kind));\n if (this.isVertexBufferUpdatable(VertexBuffer.UV2Kind)) {\n serializationObject.uvs2._updatable = true;\n }\n }\n if (this.isVerticesDataPresent(VertexBuffer.UV3Kind)) {\n serializationObject.uvs3 = this._toNumberArray(this.getVerticesData(VertexBuffer.UV3Kind));\n if (this.isVertexBufferUpdatable(VertexBuffer.UV3Kind)) {\n serializationObject.uvs3._updatable = true;\n }\n }\n if (this.isVerticesDataPresent(VertexBuffer.UV4Kind)) {\n serializationObject.uvs4 = this._toNumberArray(this.getVerticesData(VertexBuffer.UV4Kind));\n if (this.isVertexBufferUpdatable(VertexBuffer.UV4Kind)) {\n serializationObject.uvs4._updatable = true;\n }\n }\n if (this.isVerticesDataPresent(VertexBuffer.UV5Kind)) {\n serializationObject.uvs5 = this._toNumberArray(this.getVerticesData(VertexBuffer.UV5Kind));\n if (this.isVertexBufferUpdatable(VertexBuffer.UV5Kind)) {\n serializationObject.uvs5._updatable = true;\n }\n }\n if (this.isVerticesDataPresent(VertexBuffer.UV6Kind)) {\n serializationObject.uvs6 = this._toNumberArray(this.getVerticesData(VertexBuffer.UV6Kind));\n if (this.isVertexBufferUpdatable(VertexBuffer.UV6Kind)) {\n serializationObject.uvs6._updatable = true;\n }\n }\n if (this.isVerticesDataPresent(VertexBuffer.ColorKind)) {\n serializationObject.colors = this._toNumberArray(this.getVerticesData(VertexBuffer.ColorKind));\n if (this.isVertexBufferUpdatable(VertexBuffer.ColorKind)) {\n serializationObject.colors._updatable = true;\n }\n }\n if (this.isVerticesDataPresent(VertexBuffer.MatricesIndicesKind)) {\n serializationObject.matricesIndices = this._toNumberArray(this.getVerticesData(VertexBuffer.MatricesIndicesKind));\n serializationObject.matricesIndices._isExpanded = true;\n if (this.isVertexBufferUpdatable(VertexBuffer.MatricesIndicesKind)) {\n serializationObject.matricesIndices._updatable = true;\n }\n }\n if (this.isVerticesDataPresent(VertexBuffer.MatricesWeightsKind)) {\n serializationObject.matricesWeights = this._toNumberArray(this.getVerticesData(VertexBuffer.MatricesWeightsKind));\n if (this.isVertexBufferUpdatable(VertexBuffer.MatricesWeightsKind)) {\n serializationObject.matricesWeights._updatable = true;\n }\n }\n serializationObject.indices = this._toNumberArray(this.getIndices());\n return serializationObject;\n }\n // Statics\n /**\n * Extracts a clone of a mesh geometry\n * @param mesh defines the source mesh\n * @param id defines the unique ID of the new geometry object\n * @returns the new geometry object\n */\n static ExtractFromMesh(mesh, id) {\n const geometry = mesh._geometry;\n if (!geometry) {\n return null;\n }\n return geometry.copy(id);\n }\n /**\n * You should now use Tools.RandomId(), this method is still here for legacy reasons.\n * Implementation from http://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid-in-javascript/2117523#answer-2117523\n * Be aware Math.random() could cause collisions, but:\n * \"All but 6 of the 128 bits of the ID are randomly generated, which means that for any two ids, there's a 1 in 2^^122 (or 5.3x10^^36) chance they'll collide\"\n * @returns a string containing a new GUID\n */\n static RandomId() {\n return Tools.RandomId();\n }\n static _GetGeometryByLoadedUniqueId(uniqueId, scene) {\n for (let index = 0; index < scene.geometries.length; index++) {\n if (scene.geometries[index]._loadedUniqueId === uniqueId) {\n return scene.geometries[index];\n }\n }\n return null;\n }\n /**\n * @internal\n */\n static _ImportGeometry(parsedGeometry, mesh) {\n const scene = mesh.getScene();\n // Geometry\n const geometryUniqueId = parsedGeometry.geometryUniqueId;\n const geometryId = parsedGeometry.geometryId;\n if (geometryUniqueId || geometryId) {\n const geometry = geometryUniqueId ? this._GetGeometryByLoadedUniqueId(geometryUniqueId, scene) : scene.getGeometryById(geometryId);\n if (geometry) {\n geometry.applyToMesh(mesh);\n }\n }\n else if (parsedGeometry instanceof ArrayBuffer) {\n const binaryInfo = mesh._binaryInfo;\n if (binaryInfo.positionsAttrDesc && binaryInfo.positionsAttrDesc.count > 0) {\n const positionsData = new Float32Array(parsedGeometry, binaryInfo.positionsAttrDesc.offset, binaryInfo.positionsAttrDesc.count);\n mesh.setVerticesData(VertexBuffer.PositionKind, positionsData, false);\n }\n if (binaryInfo.normalsAttrDesc && binaryInfo.normalsAttrDesc.count > 0) {\n const normalsData = new Float32Array(parsedGeometry, binaryInfo.normalsAttrDesc.offset, binaryInfo.normalsAttrDesc.count);\n mesh.setVerticesData(VertexBuffer.NormalKind, normalsData, false);\n }\n if (binaryInfo.tangetsAttrDesc && binaryInfo.tangetsAttrDesc.count > 0) {\n const tangentsData = new Float32Array(parsedGeometry, binaryInfo.tangetsAttrDesc.offset, binaryInfo.tangetsAttrDesc.count);\n mesh.setVerticesData(VertexBuffer.TangentKind, tangentsData, false);\n }\n if (binaryInfo.uvsAttrDesc && binaryInfo.uvsAttrDesc.count > 0) {\n const uvsData = new Float32Array(parsedGeometry, binaryInfo.uvsAttrDesc.offset, binaryInfo.uvsAttrDesc.count);\n if (useOpenGLOrientationForUV) {\n for (let index = 1; index < uvsData.length; index += 2) {\n uvsData[index] = 1 - uvsData[index];\n }\n }\n mesh.setVerticesData(VertexBuffer.UVKind, uvsData, false);\n }\n if (binaryInfo.uvs2AttrDesc && binaryInfo.uvs2AttrDesc.count > 0) {\n const uvs2Data = new Float32Array(parsedGeometry, binaryInfo.uvs2AttrDesc.offset, binaryInfo.uvs2AttrDesc.count);\n if (useOpenGLOrientationForUV) {\n for (let index = 1; index < uvs2Data.length; index += 2) {\n uvs2Data[index] = 1 - uvs2Data[index];\n }\n }\n mesh.setVerticesData(VertexBuffer.UV2Kind, uvs2Data, false);\n }\n if (binaryInfo.uvs3AttrDesc && binaryInfo.uvs3AttrDesc.count > 0) {\n const uvs3Data = new Float32Array(parsedGeometry, binaryInfo.uvs3AttrDesc.offset, binaryInfo.uvs3AttrDesc.count);\n if (useOpenGLOrientationForUV) {\n for (let index = 1; index < uvs3Data.length; index += 2) {\n uvs3Data[index] = 1 - uvs3Data[index];\n }\n }\n mesh.setVerticesData(VertexBuffer.UV3Kind, uvs3Data, false);\n }\n if (binaryInfo.uvs4AttrDesc && binaryInfo.uvs4AttrDesc.count > 0) {\n const uvs4Data = new Float32Array(parsedGeometry, binaryInfo.uvs4AttrDesc.offset, binaryInfo.uvs4AttrDesc.count);\n if (useOpenGLOrientationForUV) {\n for (let index = 1; index < uvs4Data.length; index += 2) {\n uvs4Data[index] = 1 - uvs4Data[index];\n }\n }\n mesh.setVerticesData(VertexBuffer.UV4Kind, uvs4Data, false);\n }\n if (binaryInfo.uvs5AttrDesc && binaryInfo.uvs5AttrDesc.count > 0) {\n const uvs5Data = new Float32Array(parsedGeometry, binaryInfo.uvs5AttrDesc.offset, binaryInfo.uvs5AttrDesc.count);\n if (useOpenGLOrientationForUV) {\n for (let index = 1; index < uvs5Data.length; index += 2) {\n uvs5Data[index] = 1 - uvs5Data[index];\n }\n }\n mesh.setVerticesData(VertexBuffer.UV5Kind, uvs5Data, false);\n }\n if (binaryInfo.uvs6AttrDesc && binaryInfo.uvs6AttrDesc.count > 0) {\n const uvs6Data = new Float32Array(parsedGeometry, binaryInfo.uvs6AttrDesc.offset, binaryInfo.uvs6AttrDesc.count);\n if (useOpenGLOrientationForUV) {\n for (let index = 1; index < uvs6Data.length; index += 2) {\n uvs6Data[index] = 1 - uvs6Data[index];\n }\n }\n mesh.setVerticesData(VertexBuffer.UV6Kind, uvs6Data, false);\n }\n if (binaryInfo.colorsAttrDesc && binaryInfo.colorsAttrDesc.count > 0) {\n const colorsData = new Float32Array(parsedGeometry, binaryInfo.colorsAttrDesc.offset, binaryInfo.colorsAttrDesc.count);\n mesh.setVerticesData(VertexBuffer.ColorKind, colorsData, false, binaryInfo.colorsAttrDesc.stride);\n }\n if (binaryInfo.matricesIndicesAttrDesc && binaryInfo.matricesIndicesAttrDesc.count > 0) {\n const matricesIndicesData = new Int32Array(parsedGeometry, binaryInfo.matricesIndicesAttrDesc.offset, binaryInfo.matricesIndicesAttrDesc.count);\n const floatIndices = [];\n for (let i = 0; i < matricesIndicesData.length; i++) {\n const index = matricesIndicesData[i];\n floatIndices.push(index & 0x000000ff);\n floatIndices.push((index & 0x0000ff00) >> 8);\n floatIndices.push((index & 0x00ff0000) >> 16);\n floatIndices.push((index >> 24) & 0xff); // & 0xFF to convert to v + 256 if v < 0\n }\n mesh.setVerticesData(VertexBuffer.MatricesIndicesKind, floatIndices, false);\n }\n if (binaryInfo.matricesIndicesExtraAttrDesc && binaryInfo.matricesIndicesExtraAttrDesc.count > 0) {\n const matricesIndicesData = new Int32Array(parsedGeometry, binaryInfo.matricesIndicesExtraAttrDesc.offset, binaryInfo.matricesIndicesExtraAttrDesc.count);\n const floatIndices = [];\n for (let i = 0; i < matricesIndicesData.length; i++) {\n const index = matricesIndicesData[i];\n floatIndices.push(index & 0x000000ff);\n floatIndices.push((index & 0x0000ff00) >> 8);\n floatIndices.push((index & 0x00ff0000) >> 16);\n floatIndices.push((index >> 24) & 0xff); // & 0xFF to convert to v + 256 if v < 0\n }\n mesh.setVerticesData(VertexBuffer.MatricesIndicesExtraKind, floatIndices, false);\n }\n if (binaryInfo.matricesWeightsAttrDesc && binaryInfo.matricesWeightsAttrDesc.count > 0) {\n const matricesWeightsData = new Float32Array(parsedGeometry, binaryInfo.matricesWeightsAttrDesc.offset, binaryInfo.matricesWeightsAttrDesc.count);\n mesh.setVerticesData(VertexBuffer.MatricesWeightsKind, matricesWeightsData, false);\n }\n if (binaryInfo.indicesAttrDesc && binaryInfo.indicesAttrDesc.count > 0) {\n const indicesData = new Int32Array(parsedGeometry, binaryInfo.indicesAttrDesc.offset, binaryInfo.indicesAttrDesc.count);\n mesh.setIndices(indicesData, null);\n }\n if (binaryInfo.subMeshesAttrDesc && binaryInfo.subMeshesAttrDesc.count > 0) {\n const subMeshesData = new Int32Array(parsedGeometry, binaryInfo.subMeshesAttrDesc.offset, binaryInfo.subMeshesAttrDesc.count * 5);\n mesh.subMeshes = [];\n for (let i = 0; i < binaryInfo.subMeshesAttrDesc.count; i++) {\n const materialIndex = subMeshesData[i * 5 + 0];\n const verticesStart = subMeshesData[i * 5 + 1];\n const verticesCount = subMeshesData[i * 5 + 2];\n const indexStart = subMeshesData[i * 5 + 3];\n const indexCount = subMeshesData[i * 5 + 4];\n SubMesh.AddToMesh(materialIndex, verticesStart, verticesCount, indexStart, indexCount, mesh);\n }\n }\n }\n else if (parsedGeometry.positions && parsedGeometry.normals && parsedGeometry.indices) {\n mesh.setVerticesData(VertexBuffer.PositionKind, parsedGeometry.positions, parsedGeometry.positions._updatable);\n mesh.setVerticesData(VertexBuffer.NormalKind, parsedGeometry.normals, parsedGeometry.normals._updatable);\n if (parsedGeometry.tangents) {\n mesh.setVerticesData(VertexBuffer.TangentKind, parsedGeometry.tangents, parsedGeometry.tangents._updatable);\n }\n if (parsedGeometry.uvs) {\n mesh.setVerticesData(VertexBuffer.UVKind, parsedGeometry.uvs, parsedGeometry.uvs._updatable);\n }\n if (parsedGeometry.uvs2) {\n mesh.setVerticesData(VertexBuffer.UV2Kind, parsedGeometry.uvs2, parsedGeometry.uvs2._updatable);\n }\n if (parsedGeometry.uvs3) {\n mesh.setVerticesData(VertexBuffer.UV3Kind, parsedGeometry.uvs3, parsedGeometry.uvs3._updatable);\n }\n if (parsedGeometry.uvs4) {\n mesh.setVerticesData(VertexBuffer.UV4Kind, parsedGeometry.uvs4, parsedGeometry.uvs4._updatable);\n }\n if (parsedGeometry.uvs5) {\n mesh.setVerticesData(VertexBuffer.UV5Kind, parsedGeometry.uvs5, parsedGeometry.uvs5._updatable);\n }\n if (parsedGeometry.uvs6) {\n mesh.setVerticesData(VertexBuffer.UV6Kind, parsedGeometry.uvs6, parsedGeometry.uvs6._updatable);\n }\n if (parsedGeometry.colors) {\n mesh.setVerticesData(VertexBuffer.ColorKind, Color4.CheckColors4(parsedGeometry.colors, parsedGeometry.positions.length / 3), parsedGeometry.colors._updatable);\n }\n if (parsedGeometry.matricesIndices) {\n if (!parsedGeometry.matricesIndices._isExpanded) {\n const floatIndices = [];\n for (let i = 0; i < parsedGeometry.matricesIndices.length; i++) {\n const matricesIndex = parsedGeometry.matricesIndices[i];\n floatIndices.push(matricesIndex & 0x000000ff);\n floatIndices.push((matricesIndex & 0x0000ff00) >> 8);\n floatIndices.push((matricesIndex & 0x00ff0000) >> 16);\n floatIndices.push((matricesIndex >> 24) & 0xff); // & 0xFF to convert to v + 256 if v < 0\n }\n mesh.setVerticesData(VertexBuffer.MatricesIndicesKind, floatIndices, parsedGeometry.matricesIndices._updatable);\n }\n else {\n delete parsedGeometry.matricesIndices._isExpanded;\n mesh.setVerticesData(VertexBuffer.MatricesIndicesKind, parsedGeometry.matricesIndices, parsedGeometry.matricesIndices._updatable);\n }\n }\n if (parsedGeometry.matricesIndicesExtra) {\n if (!parsedGeometry.matricesIndicesExtra._isExpanded) {\n const floatIndices = [];\n for (let i = 0; i < parsedGeometry.matricesIndicesExtra.length; i++) {\n const matricesIndex = parsedGeometry.matricesIndicesExtra[i];\n floatIndices.push(matricesIndex & 0x000000ff);\n floatIndices.push((matricesIndex & 0x0000ff00) >> 8);\n floatIndices.push((matricesIndex & 0x00ff0000) >> 16);\n floatIndices.push((matricesIndex >> 24) & 0xff); // & 0xFF to convert to v + 256 if v < 0\n }\n mesh.setVerticesData(VertexBuffer.MatricesIndicesExtraKind, floatIndices, parsedGeometry.matricesIndicesExtra._updatable);\n }\n else {\n delete parsedGeometry.matricesIndices._isExpanded;\n mesh.setVerticesData(VertexBuffer.MatricesIndicesExtraKind, parsedGeometry.matricesIndicesExtra, parsedGeometry.matricesIndicesExtra._updatable);\n }\n }\n if (parsedGeometry.matricesWeights) {\n Geometry._CleanMatricesWeights(parsedGeometry, mesh);\n mesh.setVerticesData(VertexBuffer.MatricesWeightsKind, parsedGeometry.matricesWeights, parsedGeometry.matricesWeights._updatable);\n }\n if (parsedGeometry.matricesWeightsExtra) {\n mesh.setVerticesData(VertexBuffer.MatricesWeightsExtraKind, parsedGeometry.matricesWeightsExtra, parsedGeometry.matricesWeights._updatable);\n }\n mesh.setIndices(parsedGeometry.indices, null);\n }\n // SubMeshes\n if (parsedGeometry.subMeshes) {\n mesh.subMeshes = [];\n for (let subIndex = 0; subIndex < parsedGeometry.subMeshes.length; subIndex++) {\n const parsedSubMesh = parsedGeometry.subMeshes[subIndex];\n SubMesh.AddToMesh(parsedSubMesh.materialIndex, parsedSubMesh.verticesStart, parsedSubMesh.verticesCount, parsedSubMesh.indexStart, parsedSubMesh.indexCount, mesh);\n }\n }\n // Flat shading\n if (mesh._shouldGenerateFlatShading) {\n mesh.convertToFlatShadedMesh();\n mesh._shouldGenerateFlatShading = false;\n }\n // Update\n mesh.computeWorldMatrix(true);\n scene.onMeshImportedObservable.notifyObservers(mesh);\n }\n static _CleanMatricesWeights(parsedGeometry, mesh) {\n const epsilon = 1e-3;\n if (!SceneLoaderFlags.CleanBoneMatrixWeights) {\n return;\n }\n let noInfluenceBoneIndex = 0.0;\n if (parsedGeometry.skeletonId > -1) {\n const skeleton = mesh.getScene().getLastSkeletonById(parsedGeometry.skeletonId);\n if (!skeleton) {\n return;\n }\n noInfluenceBoneIndex = skeleton.bones.length;\n }\n else {\n return;\n }\n const matricesIndices = mesh.getVerticesData(VertexBuffer.MatricesIndicesKind);\n const matricesIndicesExtra = mesh.getVerticesData(VertexBuffer.MatricesIndicesExtraKind);\n const matricesWeights = parsedGeometry.matricesWeights;\n const matricesWeightsExtra = parsedGeometry.matricesWeightsExtra;\n const influencers = parsedGeometry.numBoneInfluencer;\n const size = matricesWeights.length;\n for (let i = 0; i < size; i += 4) {\n let weight = 0.0;\n let firstZeroWeight = -1;\n for (let j = 0; j < 4; j++) {\n const w = matricesWeights[i + j];\n weight += w;\n if (w < epsilon && firstZeroWeight < 0) {\n firstZeroWeight = j;\n }\n }\n if (matricesWeightsExtra) {\n for (let j = 0; j < 4; j++) {\n const w = matricesWeightsExtra[i + j];\n weight += w;\n if (w < epsilon && firstZeroWeight < 0) {\n firstZeroWeight = j + 4;\n }\n }\n }\n if (firstZeroWeight < 0 || firstZeroWeight > influencers - 1) {\n firstZeroWeight = influencers - 1;\n }\n if (weight > epsilon) {\n const mweight = 1.0 / weight;\n for (let j = 0; j < 4; j++) {\n matricesWeights[i + j] *= mweight;\n }\n if (matricesWeightsExtra) {\n for (let j = 0; j < 4; j++) {\n matricesWeightsExtra[i + j] *= mweight;\n }\n }\n }\n else {\n if (firstZeroWeight >= 4) {\n matricesWeightsExtra[i + firstZeroWeight - 4] = 1.0 - weight;\n matricesIndicesExtra[i + firstZeroWeight - 4] = noInfluenceBoneIndex;\n }\n else {\n matricesWeights[i + firstZeroWeight] = 1.0 - weight;\n matricesIndices[i + firstZeroWeight] = noInfluenceBoneIndex;\n }\n }\n }\n mesh.setVerticesData(VertexBuffer.MatricesIndicesKind, matricesIndices);\n if (parsedGeometry.matricesWeightsExtra) {\n mesh.setVerticesData(VertexBuffer.MatricesIndicesExtraKind, matricesIndicesExtra);\n }\n }\n /**\n * Create a new geometry from persisted data (Using .babylon file format)\n * @param parsedVertexData defines the persisted data\n * @param scene defines the hosting scene\n * @param rootUrl defines the root url to use to load assets (like delayed data)\n * @returns the new geometry object\n */\n static Parse(parsedVertexData, scene, rootUrl) {\n const geometry = new Geometry(parsedVertexData.id, scene, undefined, parsedVertexData.updatable);\n geometry._loadedUniqueId = parsedVertexData.uniqueId;\n if (Tags) {\n Tags.AddTagsTo(geometry, parsedVertexData.tags);\n }\n if (parsedVertexData.delayLoadingFile) {\n geometry.delayLoadState = 4;\n geometry.delayLoadingFile = rootUrl + parsedVertexData.delayLoadingFile;\n geometry._boundingInfo = new BoundingInfo(Vector3.FromArray(parsedVertexData.boundingBoxMinimum), Vector3.FromArray(parsedVertexData.boundingBoxMaximum));\n geometry._delayInfo = [];\n if (parsedVertexData.hasUVs) {\n geometry._delayInfo.push(VertexBuffer.UVKind);\n }\n if (parsedVertexData.hasUVs2) {\n geometry._delayInfo.push(VertexBuffer.UV2Kind);\n }\n if (parsedVertexData.hasUVs3) {\n geometry._delayInfo.push(VertexBuffer.UV3Kind);\n }\n if (parsedVertexData.hasUVs4) {\n geometry._delayInfo.push(VertexBuffer.UV4Kind);\n }\n if (parsedVertexData.hasUVs5) {\n geometry._delayInfo.push(VertexBuffer.UV5Kind);\n }\n if (parsedVertexData.hasUVs6) {\n geometry._delayInfo.push(VertexBuffer.UV6Kind);\n }\n if (parsedVertexData.hasColors) {\n geometry._delayInfo.push(VertexBuffer.ColorKind);\n }\n if (parsedVertexData.hasMatricesIndices) {\n geometry._delayInfo.push(VertexBuffer.MatricesIndicesKind);\n }\n if (parsedVertexData.hasMatricesWeights) {\n geometry._delayInfo.push(VertexBuffer.MatricesWeightsKind);\n }\n geometry._delayLoadingFunction = VertexData.ImportVertexData;\n }\n else {\n VertexData.ImportVertexData(parsedVertexData, geometry);\n }\n scene.pushGeometry(geometry, true);\n return geometry;\n 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