WebGPU 的新变化 (Chrome 119)

const adapter = await navigator.gpu.requestAdapter(); if (!adapter.features.has("float32-filterable")) {   throw new Error("Filterable 32-bit float textures support is not available"); } // Explicitly request filterable 32-bit float textures support. const device = await adapter.requestDevice({   requiredFeatures: ["float32-filterable"], });  // Create a sampler with linear filtering. const sampler = device.createSampler({   magFilter: "linear", });  // Create a texture with rgba32float format. const texture = device.createTexture({   size: [100, 100],   format: "rgba32float",   usage: GPUTextureUsage.COPY_DST | GPUTextureUsage.TEXTURE_BINDING, });  // Write data to texture, create a bindgroup with sampler and texture and // send the appropriate commands to the GPU.... 

// Define the layout of vertex attribute data with unorm10-10-10-2 format. const buffers = [   {     arrayStride: 0,     attributes: [       { format: "unorm10-10-10-2", offset: 0, shaderLocation: 0 },     ],   }, ];  // Describe the vertex shader entry point and its input buffer layouts. const vertex = {   module: myVertexShaderModule,   entryPoint: "main",   buffers, };  // Pass vertex to device.createRenderPipeline() and // use vec4<f32> type in WGSL shader code to manipulate data. 

// Create a texture with rgb10a2uint format. const texture = device.createTexture({   size: [100, 100],   format: "rgb10a2uint",   usage: GPUTextureUsage.COPY_DST | GPUTextureUsage.TEXTURE_BINDING, });  // Write data to texture, create a bindgroup with texture and // send the appropriate commands to the GPU.... 

// Create a timestamp query set that will store the timestamp values. wgpu::QuerySetDescriptor querySetDescriptor = {     .count = 2,     .type = wgpu::QueryType::Timestamp}; wgpu::QuerySet querySet = device.CreateQuerySet(&querySetDescriptor);  wgpu::RenderPassTimestampWrites timestampWrites = {     .querySet = querySet,     .beginningOfPassWriteIndex = 0,     .endOfPassWriteIndex = 1}; wgpu::ComputePassDescriptor pass{.timestampWrites = &timestampWrites};  // Write the queue timestamp into beginningOfPassWriteIndex and // endOfPassWriteIndex of myQuerySet respectively before and after the pass // commands execute. myEncoder.BeginComputePass(&pass);