| 1 |
- {"ast":null,"code":"import { __decorate } from \"../tslib.es6.js\";\nimport { serialize } from \"../Misc/decorators.js\";\nimport { SerializationHelper } from \"../Misc/decorators.serialization.js\";\nimport { RegisterClass } from \"../Misc/typeStore.js\";\nimport { Texture } from \"../Materials/Textures/texture.js\";\nimport { UniqueIdGenerator } from \"../Misc/uniqueIdGenerator.js\";\nimport { Logger } from \"../Misc/logger.js\";\nimport { TextureSampler } from \"../Materials/Textures/textureSampler.js\";\nimport { WebGPUPerfCounter } from \"../Engines/WebGPU/webgpuPerfCounter.js\";\n/**\n * The ComputeShader object lets you execute a compute shader on your GPU (if supported by the engine)\n */\nexport class ComputeShader {\n /**\n * The options used to create the shader\n */\n get options() {\n return this._options;\n }\n /**\n * The shaderPath used to create the shader\n */\n get shaderPath() {\n return this._shaderPath;\n }\n /**\n * Instantiates a new compute shader.\n * @param name Defines the name of the compute shader in the scene\n * @param engine Defines the engine the compute shader belongs to\n * @param shaderPath Defines the route to the shader code in one of three ways:\n * * object: \\{ compute: \"custom\" \\}, used with ShaderStore.ShadersStoreWGSL[\"customComputeShader\"]\n * * object: \\{ computeElement: \"HTMLElementId\" \\}, used with shader code in script tags\n * * object: \\{ computeSource: \"compute shader code string\" \\}, where the string contains the shader code\n * * string: try first to find the code in ShaderStore.ShadersStoreWGSL[shaderPath + \"ComputeShader\"]. If not, assumes it is a file with name shaderPath.compute.fx in index.html folder.\n * @param options Define the options used to create the shader\n */\n constructor(name, engine, shaderPath, options = {}) {\n this._bindings = {};\n this._samplers = {};\n this._contextIsDirty = false;\n /**\n * When set to true, dispatch won't call isReady anymore and won't check if the underlying GPU resources should be (re)created because of a change in the inputs (texture, uniform buffer, etc.)\n * If you know that your inputs did not change since last time dispatch was called and that isReady() returns true, set this flag to true to improve performance\n */\n this.fastMode = false;\n /**\n * Callback triggered when the shader is compiled\n */\n this.onCompiled = null;\n /**\n * Callback triggered when an error occurs\n */\n this.onError = null;\n this.name = name;\n this._engine = engine;\n this.uniqueId = UniqueIdGenerator.UniqueId;\n if (engine.enableGPUTimingMeasurements) {\n this.gpuTimeInFrame = new WebGPUPerfCounter();\n }\n if (!this._engine.getCaps().supportComputeShaders) {\n Logger.Error(\"This engine does not support compute shaders!\");\n return;\n }\n if (!options.bindingsMapping) {\n Logger.Error(\"You must provide the binding mappings as browsers don't support reflection for wgsl shaders yet!\");\n return;\n }\n this._context = engine.createComputeContext();\n this._shaderPath = shaderPath;\n this._options = {\n bindingsMapping: {},\n defines: [],\n ...options\n };\n }\n /**\n * Gets the current class name of the material e.g. \"ComputeShader\"\n * Mainly use in serialization.\n * @returns the class name\n */\n getClassName() {\n return \"ComputeShader\";\n }\n /**\n * Binds a texture to the shader\n * @param name Binding name of the texture\n * @param texture Texture to bind\n * @param bindSampler Bind the sampler corresponding to the texture (default: true). The sampler will be bound just before the binding index of the texture\n */\n setTexture(name, texture, bindSampler = true) {\n const current = this._bindings[name];\n this._bindings[name] = {\n type: bindSampler ? 0 /* ComputeBindingType.Texture */ : 4 /* ComputeBindingType.TextureWithoutSampler */,\n object: texture,\n indexInGroupEntries: current === null || current === void 0 ? void 0 : current.indexInGroupEntries\n };\n this._contextIsDirty || (this._contextIsDirty = !current || current.object !== texture || current.type !== this._bindings[name].type);\n }\n /**\n * Binds a storage texture to the shader\n * @param name Binding name of the texture\n * @param texture Texture to bind\n */\n setStorageTexture(name, texture) {\n const current = this._bindings[name];\n this._contextIsDirty || (this._contextIsDirty = !current || current.object !== texture);\n this._bindings[name] = {\n type: 1 /* ComputeBindingType.StorageTexture */,\n object: texture,\n indexInGroupEntries: current === null || current === void 0 ? void 0 : current.indexInGroupEntries\n };\n }\n /**\n * Binds an external texture to the shader\n * @param name Binding name of the texture\n * @param texture Texture to bind\n */\n setExternalTexture(name, texture) {\n const current = this._bindings[name];\n this._contextIsDirty || (this._contextIsDirty = !current || current.object !== texture);\n this._bindings[name] = {\n type: 6 /* ComputeBindingType.ExternalTexture */,\n object: texture,\n indexInGroupEntries: current === null || current === void 0 ? void 0 : current.indexInGroupEntries\n };\n }\n /**\n * Binds a video texture to the shader (by binding the external texture attached to this video)\n * @param name Binding name of the texture\n * @param texture Texture to bind\n * @returns true if the video texture was successfully bound, else false. false will be returned if the current engine does not support external textures\n */\n setVideoTexture(name, texture) {\n if (texture.externalTexture) {\n this.setExternalTexture(name, texture.externalTexture);\n return true;\n }\n return false;\n }\n /**\n * Binds a uniform buffer to the shader\n * @param name Binding name of the buffer\n * @param buffer Buffer to bind\n */\n setUniformBuffer(name, buffer) {\n const current = this._bindings[name];\n this._contextIsDirty || (this._contextIsDirty = !current || current.object !== buffer);\n this._bindings[name] = {\n type: ComputeShader._BufferIsDataBuffer(buffer) ? 7 /* ComputeBindingType.DataBuffer */ : 2 /* ComputeBindingType.UniformBuffer */,\n object: buffer,\n indexInGroupEntries: current === null || current === void 0 ? void 0 : current.indexInGroupEntries\n };\n }\n /**\n * Binds a storage buffer to the shader\n * @param name Binding name of the buffer\n * @param buffer Buffer to bind\n */\n setStorageBuffer(name, buffer) {\n const current = this._bindings[name];\n this._contextIsDirty || (this._contextIsDirty = !current || current.object !== buffer);\n this._bindings[name] = {\n type: ComputeShader._BufferIsDataBuffer(buffer) ? 7 /* ComputeBindingType.DataBuffer */ : 3 /* ComputeBindingType.StorageBuffer */,\n object: buffer,\n indexInGroupEntries: current === null || current === void 0 ? void 0 : current.indexInGroupEntries\n };\n }\n /**\n * Binds a texture sampler to the shader\n * @param name Binding name of the sampler\n * @param sampler Sampler to bind\n */\n setTextureSampler(name, sampler) {\n const current = this._bindings[name];\n this._contextIsDirty || (this._contextIsDirty = !current || !sampler.compareSampler(current.object));\n this._bindings[name] = {\n type: 5 /* ComputeBindingType.Sampler */,\n object: sampler,\n indexInGroupEntries: current === null || current === void 0 ? void 0 : current.indexInGroupEntries\n };\n }\n /**\n * Specifies that the compute shader is ready to be executed (the compute effect and all the resources are ready)\n * @returns true if the compute shader is ready to be executed\n */\n isReady() {\n let effect = this._effect;\n for (const key in this._bindings) {\n const binding = this._bindings[key],\n type = binding.type,\n object = binding.object;\n switch (type) {\n case 0 /* ComputeBindingType.Texture */:\n case 4 /* ComputeBindingType.TextureWithoutSampler */:\n case 1 /* ComputeBindingType.StorageTexture */:\n {\n const texture = object;\n if (!texture.isReady()) {\n return false;\n }\n break;\n }\n case 6 /* ComputeBindingType.ExternalTexture */:\n {\n const texture = object;\n if (!texture.isReady()) {\n return false;\n }\n break;\n }\n }\n }\n const defines = [];\n const shaderName = this._shaderPath;\n if (this._options.defines) {\n for (let index = 0; index < this._options.defines.length; index++) {\n defines.push(this._options.defines[index]);\n }\n }\n const join = defines.join(\"\\n\");\n if (this._cachedDefines !== join) {\n this._cachedDefines = join;\n effect = this._engine.createComputeEffect(shaderName, {\n defines: join,\n entryPoint: this._options.entryPoint,\n onCompiled: this.onCompiled,\n onError: this.onError\n });\n this._effect = effect;\n }\n if (!effect.isReady()) {\n return false;\n }\n return true;\n }\n /**\n * Dispatches (executes) the compute shader\n * @param x Number of workgroups to execute on the X dimension\n * @param y Number of workgroups to execute on the Y dimension (default: 1)\n * @param z Number of workgroups to execute on the Z dimension (default: 1)\n * @returns True if the dispatch could be done, else false (meaning either the compute effect or at least one of the bound resources was not ready)\n */\n dispatch(x, y, z) {\n if (!this.fastMode && !this._checkContext()) {\n return false;\n }\n this._engine.computeDispatch(this._effect, this._context, this._bindings, x, y, z, this._options.bindingsMapping, this.gpuTimeInFrame);\n return true;\n }\n /**\n * Dispatches (executes) the compute shader.\n * @param buffer Buffer containing the number of workgroups to execute on the X, Y and Z dimensions\n * @param offset Offset in the buffer where the workgroup counts are stored (default: 0)\n * @returns True if the dispatch could be done, else false (meaning either the compute effect or at least one of the bound resources was not ready)\n */\n dispatchIndirect(buffer, offset = 0) {\n if (!this.fastMode && !this._checkContext()) {\n return false;\n }\n const dataBuffer = ComputeShader._BufferIsDataBuffer(buffer) ? buffer : buffer.getBuffer();\n this._engine.computeDispatchIndirect(this._effect, this._context, this._bindings, dataBuffer, offset, this._options.bindingsMapping, this.gpuTimeInFrame);\n return true;\n }\n _checkContext() {\n if (!this.isReady()) {\n return false;\n }\n // If the sampling parameters of a texture bound to the shader have changed, we must clear the compute context so that it is recreated with the updated values\n // Also, if the actual (gpu) buffer used by a uniform buffer has changed, we must clear the compute context so that it is recreated with the updated value\n for (const key in this._bindings) {\n const binding = this._bindings[key];\n if (!this._options.bindingsMapping[key]) {\n throw new Error(\"ComputeShader ('\" + this.name + \"'): No binding mapping has been provided for the property '\" + key + \"'\");\n }\n switch (binding.type) {\n case 0 /* ComputeBindingType.Texture */:\n {\n const sampler = this._samplers[key];\n const texture = binding.object;\n if (!sampler || !texture._texture || !sampler.compareSampler(texture._texture)) {\n var _texture$_texture;\n this._samplers[key] = new TextureSampler().setParameters(texture.wrapU, texture.wrapV, texture.wrapR, texture.anisotropicFilteringLevel, texture._texture.samplingMode, (_texture$_texture = texture._texture) === null || _texture$_texture === void 0 ? void 0 : _texture$_texture._comparisonFunction);\n this._contextIsDirty = true;\n }\n break;\n }\n case 6 /* ComputeBindingType.ExternalTexture */:\n {\n // we must recreate the bind groups each time if there's an external texture, because device.importExternalTexture must be called each frame\n this._contextIsDirty = true;\n break;\n }\n case 2 /* ComputeBindingType.UniformBuffer */:\n {\n const ubo = binding.object;\n if (ubo.getBuffer() !== binding.buffer) {\n binding.buffer = ubo.getBuffer();\n this._contextIsDirty = true;\n }\n break;\n }\n }\n }\n if (this._contextIsDirty) {\n this._contextIsDirty = false;\n this._context.clear();\n }\n return true;\n }\n /**\n * Waits for the compute shader to be ready and executes it\n * @param x Number of workgroups to execute on the X dimension\n * @param y Number of workgroups to execute on the Y dimension (default: 1)\n * @param z Number of workgroups to execute on the Z dimension (default: 1)\n * @param delay Delay between the retries while the shader is not ready (in milliseconds - 10 by default)\n * @returns A promise that is resolved once the shader has been sent to the GPU. Note that it does not mean that the shader execution itself is finished!\n */\n dispatchWhenReady(x, y, z, delay = 10) {\n return new Promise(resolve => {\n const check = () => {\n if (!this.dispatch(x, y, z)) {\n setTimeout(check, delay);\n } else {\n resolve();\n }\n };\n check();\n });\n }\n /**\n * Serializes this compute shader in a JSON representation\n * @returns the serialized compute shader object\n */\n serialize() {\n const serializationObject = SerializationHelper.Serialize(this);\n serializationObject.options = this._options;\n serializationObject.shaderPath = this._shaderPath;\n serializationObject.bindings = {};\n serializationObject.textures = {};\n for (const key in this._bindings) {\n const binding = this._bindings[key];\n const object = binding.object;\n switch (binding.type) {\n case 0 /* ComputeBindingType.Texture */:\n case 4 /* ComputeBindingType.TextureWithoutSampler */:\n case 1 /* ComputeBindingType.StorageTexture */:\n {\n const serializedData = object.serialize();\n if (serializedData) {\n serializationObject.textures[key] = serializedData;\n serializationObject.bindings[key] = {\n type: binding.type\n };\n }\n break;\n }\n case 2 /* ComputeBindingType.UniformBuffer */:\n {\n break;\n }\n }\n }\n return serializationObject;\n }\n /**\n * Creates a compute shader from parsed compute shader data\n * @param source defines the JSON representation of the compute shader\n * @param scene defines the hosting scene\n * @param rootUrl defines the root URL to use to load textures and relative dependencies\n * @returns a new compute shader\n */\n static Parse(source, scene, rootUrl) {\n const compute = SerializationHelper.Parse(() => new ComputeShader(source.name, scene.getEngine(), source.shaderPath, source.options), source, scene, rootUrl);\n for (const key in source.textures) {\n const binding = source.bindings[key];\n const texture = Texture.Parse(source.textures[key], scene, rootUrl);\n if (binding.type === 0 /* ComputeBindingType.Texture */) {\n compute.setTexture(key, texture);\n } else if (binding.type === 4 /* ComputeBindingType.TextureWithoutSampler */) {\n compute.setTexture(key, texture, false);\n } else {\n compute.setStorageTexture(key, texture);\n }\n }\n return compute;\n }\n static _BufferIsDataBuffer(buffer) {\n return buffer.underlyingResource !== undefined;\n }\n}\n__decorate([serialize()], ComputeShader.prototype, \"name\", void 0);\n__decorate([serialize()], ComputeShader.prototype, \"fastMode\", void 0);\nRegisterClass(\"BABYLON.ComputeShader\", ComputeShader);","map":{"version":3,"names":["__decorate","serialize","SerializationHelper","RegisterClass","Texture","UniqueIdGenerator","Logger","TextureSampler","WebGPUPerfCounter","ComputeShader","options","_options","shaderPath","_shaderPath","constructor","name","engine","_bindings","_samplers","_contextIsDirty","fastMode","onCompiled","onError","_engine","uniqueId","UniqueId","enableGPUTimingMeasurements","gpuTimeInFrame","getCaps","supportComputeShaders","Error","bindingsMapping","_context","createComputeContext","defines","getClassName","setTexture","texture","bindSampler","current","type","object","indexInGroupEntries","setStorageTexture","setExternalTexture","setVideoTexture","externalTexture","setUniformBuffer","buffer","_BufferIsDataBuffer","setStorageBuffer","setTextureSampler","sampler","compareSampler","isReady","effect","_effect","key","binding","shaderName","index","length","push","join","_cachedDefines","createComputeEffect","entryPoint","dispatch","x","y","z","_checkContext","computeDispatch","dispatchIndirect","offset","dataBuffer","getBuffer","computeDispatchIndirect","_texture","_texture$_texture","setParameters","wrapU","wrapV","wrapR","anisotropicFilteringLevel","samplingMode","_comparisonFunction","ubo","clear","dispatchWhenReady","delay","Promise","resolve","check","setTimeout","serializationObject","Serialize","bindings","textures","serializedData","Parse","source","scene","rootUrl","compute","getEngine","underlyingResource","undefined","prototype"],"sources":["F:/workspace/202226701027/huinongbao-app/node_modules/@babylonjs/core/Compute/computeShader.js"],"sourcesContent":["import { __decorate } from \"../tslib.es6.js\";\nimport { serialize } from \"../Misc/decorators.js\";\nimport { SerializationHelper } from \"../Misc/decorators.serialization.js\";\nimport { RegisterClass } from \"../Misc/typeStore.js\";\nimport { Texture } from \"../Materials/Textures/texture.js\";\nimport { UniqueIdGenerator } from \"../Misc/uniqueIdGenerator.js\";\nimport { Logger } from \"../Misc/logger.js\";\nimport { TextureSampler } from \"../Materials/Textures/textureSampler.js\";\nimport { WebGPUPerfCounter } from \"../Engines/WebGPU/webgpuPerfCounter.js\";\n/**\n * The ComputeShader object lets you execute a compute shader on your GPU (if supported by the engine)\n */\nexport class ComputeShader {\n /**\n * The options used to create the shader\n */\n get options() {\n return this._options;\n }\n /**\n * The shaderPath used to create the shader\n */\n get shaderPath() {\n return this._shaderPath;\n }\n /**\n * Instantiates a new compute shader.\n * @param name Defines the name of the compute shader in the scene\n * @param engine Defines the engine the compute shader belongs to\n * @param shaderPath Defines the route to the shader code in one of three ways:\n * * object: \\{ compute: \"custom\" \\}, used with ShaderStore.ShadersStoreWGSL[\"customComputeShader\"]\n * * object: \\{ computeElement: \"HTMLElementId\" \\}, used with shader code in script tags\n * * object: \\{ computeSource: \"compute shader code string\" \\}, where the string contains the shader code\n * * string: try first to find the code in ShaderStore.ShadersStoreWGSL[shaderPath + \"ComputeShader\"]. If not, assumes it is a file with name shaderPath.compute.fx in index.html folder.\n * @param options Define the options used to create the shader\n */\n constructor(name, engine, shaderPath, options = {}) {\n this._bindings = {};\n this._samplers = {};\n this._contextIsDirty = false;\n /**\n * When set to true, dispatch won't call isReady anymore and won't check if the underlying GPU resources should be (re)created because of a change in the inputs (texture, uniform buffer, etc.)\n * If you know that your inputs did not change since last time dispatch was called and that isReady() returns true, set this flag to true to improve performance\n */\n this.fastMode = false;\n /**\n * Callback triggered when the shader is compiled\n */\n this.onCompiled = null;\n /**\n * Callback triggered when an error occurs\n */\n this.onError = null;\n this.name = name;\n this._engine = engine;\n this.uniqueId = UniqueIdGenerator.UniqueId;\n if (engine.enableGPUTimingMeasurements) {\n this.gpuTimeInFrame = new WebGPUPerfCounter();\n }\n if (!this._engine.getCaps().supportComputeShaders) {\n Logger.Error(\"This engine does not support compute shaders!\");\n return;\n }\n if (!options.bindingsMapping) {\n Logger.Error(\"You must provide the binding mappings as browsers don't support reflection for wgsl shaders yet!\");\n return;\n }\n this._context = engine.createComputeContext();\n this._shaderPath = shaderPath;\n this._options = {\n bindingsMapping: {},\n defines: [],\n ...options,\n };\n }\n /**\n * Gets the current class name of the material e.g. \"ComputeShader\"\n * Mainly use in serialization.\n * @returns the class name\n */\n getClassName() {\n return \"ComputeShader\";\n }\n /**\n * Binds a texture to the shader\n * @param name Binding name of the texture\n * @param texture Texture to bind\n * @param bindSampler Bind the sampler corresponding to the texture (default: true). The sampler will be bound just before the binding index of the texture\n */\n setTexture(name, texture, bindSampler = true) {\n const current = this._bindings[name];\n this._bindings[name] = {\n type: bindSampler ? 0 /* ComputeBindingType.Texture */ : 4 /* ComputeBindingType.TextureWithoutSampler */,\n object: texture,\n indexInGroupEntries: current?.indexInGroupEntries,\n };\n this._contextIsDirty || (this._contextIsDirty = !current || current.object !== texture || current.type !== this._bindings[name].type);\n }\n /**\n * Binds a storage texture to the shader\n * @param name Binding name of the texture\n * @param texture Texture to bind\n */\n setStorageTexture(name, texture) {\n const current = this._bindings[name];\n this._contextIsDirty || (this._contextIsDirty = !current || current.object !== texture);\n this._bindings[name] = {\n type: 1 /* ComputeBindingType.StorageTexture */,\n object: texture,\n indexInGroupEntries: current?.indexInGroupEntries,\n };\n }\n /**\n * Binds an external texture to the shader\n * @param name Binding name of the texture\n * @param texture Texture to bind\n */\n setExternalTexture(name, texture) {\n const current = this._bindings[name];\n this._contextIsDirty || (this._contextIsDirty = !current || current.object !== texture);\n this._bindings[name] = {\n type: 6 /* ComputeBindingType.ExternalTexture */,\n object: texture,\n indexInGroupEntries: current?.indexInGroupEntries,\n };\n }\n /**\n * Binds a video texture to the shader (by binding the external texture attached to this video)\n * @param name Binding name of the texture\n * @param texture Texture to bind\n * @returns true if the video texture was successfully bound, else false. false will be returned if the current engine does not support external textures\n */\n setVideoTexture(name, texture) {\n if (texture.externalTexture) {\n this.setExternalTexture(name, texture.externalTexture);\n return true;\n }\n return false;\n }\n /**\n * Binds a uniform buffer to the shader\n * @param name Binding name of the buffer\n * @param buffer Buffer to bind\n */\n setUniformBuffer(name, buffer) {\n const current = this._bindings[name];\n this._contextIsDirty || (this._contextIsDirty = !current || current.object !== buffer);\n this._bindings[name] = {\n type: ComputeShader._BufferIsDataBuffer(buffer) ? 7 /* ComputeBindingType.DataBuffer */ : 2 /* ComputeBindingType.UniformBuffer */,\n object: buffer,\n indexInGroupEntries: current?.indexInGroupEntries,\n };\n }\n /**\n * Binds a storage buffer to the shader\n * @param name Binding name of the buffer\n * @param buffer Buffer to bind\n */\n setStorageBuffer(name, buffer) {\n const current = this._bindings[name];\n this._contextIsDirty || (this._contextIsDirty = !current || current.object !== buffer);\n this._bindings[name] = {\n type: ComputeShader._BufferIsDataBuffer(buffer) ? 7 /* ComputeBindingType.DataBuffer */ : 3 /* ComputeBindingType.StorageBuffer */,\n object: buffer,\n indexInGroupEntries: current?.indexInGroupEntries,\n };\n }\n /**\n * Binds a texture sampler to the shader\n * @param name Binding name of the sampler\n * @param sampler Sampler to bind\n */\n setTextureSampler(name, sampler) {\n const current = this._bindings[name];\n this._contextIsDirty || (this._contextIsDirty = !current || !sampler.compareSampler(current.object));\n this._bindings[name] = {\n type: 5 /* ComputeBindingType.Sampler */,\n object: sampler,\n indexInGroupEntries: current?.indexInGroupEntries,\n };\n }\n /**\n * Specifies that the compute shader is ready to be executed (the compute effect and all the resources are ready)\n * @returns true if the compute shader is ready to be executed\n */\n isReady() {\n let effect = this._effect;\n for (const key in this._bindings) {\n const binding = this._bindings[key], type = binding.type, object = binding.object;\n switch (type) {\n case 0 /* ComputeBindingType.Texture */:\n case 4 /* ComputeBindingType.TextureWithoutSampler */:\n case 1 /* ComputeBindingType.StorageTexture */: {\n const texture = object;\n if (!texture.isReady()) {\n return false;\n }\n break;\n }\n case 6 /* ComputeBindingType.ExternalTexture */: {\n const texture = object;\n if (!texture.isReady()) {\n return false;\n }\n break;\n }\n }\n }\n const defines = [];\n const shaderName = this._shaderPath;\n if (this._options.defines) {\n for (let index = 0; index < this._options.defines.length; index++) {\n defines.push(this._options.defines[index]);\n }\n }\n const join = defines.join(\"\\n\");\n if (this._cachedDefines !== join) {\n this._cachedDefines = join;\n effect = this._engine.createComputeEffect(shaderName, {\n defines: join,\n entryPoint: this._options.entryPoint,\n onCompiled: this.onCompiled,\n onError: this.onError,\n });\n this._effect = effect;\n }\n if (!effect.isReady()) {\n return false;\n }\n return true;\n }\n /**\n * Dispatches (executes) the compute shader\n * @param x Number of workgroups to execute on the X dimension\n * @param y Number of workgroups to execute on the Y dimension (default: 1)\n * @param z Number of workgroups to execute on the Z dimension (default: 1)\n * @returns True if the dispatch could be done, else false (meaning either the compute effect or at least one of the bound resources was not ready)\n */\n dispatch(x, y, z) {\n if (!this.fastMode && !this._checkContext()) {\n return false;\n }\n this._engine.computeDispatch(this._effect, this._context, this._bindings, x, y, z, this._options.bindingsMapping, this.gpuTimeInFrame);\n return true;\n }\n /**\n * Dispatches (executes) the compute shader.\n * @param buffer Buffer containing the number of workgroups to execute on the X, Y and Z dimensions\n * @param offset Offset in the buffer where the workgroup counts are stored (default: 0)\n * @returns True if the dispatch could be done, else false (meaning either the compute effect or at least one of the bound resources was not ready)\n */\n dispatchIndirect(buffer, offset = 0) {\n if (!this.fastMode && !this._checkContext()) {\n return false;\n }\n const dataBuffer = ComputeShader._BufferIsDataBuffer(buffer) ? buffer : buffer.getBuffer();\n this._engine.computeDispatchIndirect(this._effect, this._context, this._bindings, dataBuffer, offset, this._options.bindingsMapping, this.gpuTimeInFrame);\n return true;\n }\n _checkContext() {\n if (!this.isReady()) {\n return false;\n }\n // If the sampling parameters of a texture bound to the shader have changed, we must clear the compute context so that it is recreated with the updated values\n // Also, if the actual (gpu) buffer used by a uniform buffer has changed, we must clear the compute context so that it is recreated with the updated value\n for (const key in this._bindings) {\n const binding = this._bindings[key];\n if (!this._options.bindingsMapping[key]) {\n throw new Error(\"ComputeShader ('\" + this.name + \"'): No binding mapping has been provided for the property '\" + key + \"'\");\n }\n switch (binding.type) {\n case 0 /* ComputeBindingType.Texture */: {\n const sampler = this._samplers[key];\n const texture = binding.object;\n if (!sampler || !texture._texture || !sampler.compareSampler(texture._texture)) {\n this._samplers[key] = new TextureSampler().setParameters(texture.wrapU, texture.wrapV, texture.wrapR, texture.anisotropicFilteringLevel, texture._texture.samplingMode, texture._texture?._comparisonFunction);\n this._contextIsDirty = true;\n }\n break;\n }\n case 6 /* ComputeBindingType.ExternalTexture */: {\n // we must recreate the bind groups each time if there's an external texture, because device.importExternalTexture must be called each frame\n this._contextIsDirty = true;\n break;\n }\n case 2 /* ComputeBindingType.UniformBuffer */: {\n const ubo = binding.object;\n if (ubo.getBuffer() !== binding.buffer) {\n binding.buffer = ubo.getBuffer();\n this._contextIsDirty = true;\n }\n break;\n }\n }\n }\n if (this._contextIsDirty) {\n this._contextIsDirty = false;\n this._context.clear();\n }\n return true;\n }\n /**\n * Waits for the compute shader to be ready and executes it\n * @param x Number of workgroups to execute on the X dimension\n * @param y Number of workgroups to execute on the Y dimension (default: 1)\n * @param z Number of workgroups to execute on the Z dimension (default: 1)\n * @param delay Delay between the retries while the shader is not ready (in milliseconds - 10 by default)\n * @returns A promise that is resolved once the shader has been sent to the GPU. Note that it does not mean that the shader execution itself is finished!\n */\n dispatchWhenReady(x, y, z, delay = 10) {\n return new Promise((resolve) => {\n const check = () => {\n if (!this.dispatch(x, y, z)) {\n setTimeout(check, delay);\n }\n else {\n resolve();\n }\n };\n check();\n });\n }\n /**\n * Serializes this compute shader in a JSON representation\n * @returns the serialized compute shader object\n */\n serialize() {\n const serializationObject = SerializationHelper.Serialize(this);\n serializationObject.options = this._options;\n serializationObject.shaderPath = this._shaderPath;\n serializationObject.bindings = {};\n serializationObject.textures = {};\n for (const key in this._bindings) {\n const binding = this._bindings[key];\n const object = binding.object;\n switch (binding.type) {\n case 0 /* ComputeBindingType.Texture */:\n case 4 /* ComputeBindingType.TextureWithoutSampler */:\n case 1 /* ComputeBindingType.StorageTexture */: {\n const serializedData = object.serialize();\n if (serializedData) {\n serializationObject.textures[key] = serializedData;\n serializationObject.bindings[key] = {\n type: binding.type,\n };\n }\n break;\n }\n case 2 /* ComputeBindingType.UniformBuffer */: {\n break;\n }\n }\n }\n return serializationObject;\n }\n /**\n * Creates a compute shader from parsed compute shader data\n * @param source defines the JSON representation of the compute shader\n * @param scene defines the hosting scene\n * @param rootUrl defines the root URL to use to load textures and relative dependencies\n * @returns a new compute shader\n */\n static Parse(source, scene, rootUrl) {\n const compute = SerializationHelper.Parse(() => new ComputeShader(source.name, scene.getEngine(), source.shaderPath, source.options), source, scene, rootUrl);\n for (const key in source.textures) {\n const binding = source.bindings[key];\n const texture = Texture.Parse(source.textures[key], scene, rootUrl);\n if (binding.type === 0 /* 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