stats-gl/webgpu.html at main · RenaudRohlinger/stats-gl · GitHub

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<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta
      name="viewport"
      content="width=device-width, initial-scale=1.0" />
    <title>Stats-GL - WebGPU Demo</title>
    <link rel="help" href="/llms.txt" type="text/plain" title="LLM Instructions">
    <style>
      body {
        margin: 0;
        overflow: hidden;
        background: #000;
        font-family: system-ui, -apple-system, sans-serif;

      }
      canvas {
        width: 100vw;
        height: 100vh;
      }
      .code-overlay {
        position: absolute;
        bottom: 0;
        left: 0;
        padding: 14px;
        background-color: #1e1e1ef8;
        color: #d4d4d4;
        overflow: auto;
        margin: 0;
        font-family: 'Courier New', Courier, monospace;
        @media screen and (max-width: 608px) {
          display: none;
        }
      }
      .nav-tabs {
        display: flex;
        gap: 1px;
        margin-top: -14px;
        position: absolute;
        right: 0;
        margin-bottom: 14px;
        font-family: system-ui, -apple-system, sans-serif;
      }
      .nav-tab {
        background: #1e1e1ef8;
        color: #d4d4d4;
        padding: 4px 8px;
        text-decoration: none;
        font-size: 12px;
        transition: background-color 0.2s;
      }
      .nav-tab:hover {
        background: #3d3d3d;
      }
      .nav-tab.active {
        background: #3d3d3d;
      }
      pre {
        margin: 0;
      }
      .keyword {
        color: #569cd6;
      }
      .comment {
        color: #6a9955;
      }
      .string {
        color: #ce9178;
      }
      ::selection {
        background: #264f78;
      }

      #footer {
        position: absolute;
        bottom: 0;
        right: 0;
        color: #fff;
        font-size: 14px;
        padding: 14px;
        text-align: right;
        background-color: #1e1e1ef8;
      }
      #footer a {
        color: #fff;
        font-weight: bold;
        text-decoration: none;
      }

      #twitter {
        position: absolute;
        bottom: 0;
        right: 0;
      }
      #footer svg {
        fill: #fff;
        width: 14px;
        height: 14px;
        border: 0;
      }

      .error-message {
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        color: #ff6b6b;
        font-size: 18px;
        text-align: center;
        padding: 20px;
        background: rgba(0, 0, 0, 0.8);
        border-radius: 8px;
      }
    </style>
  </head>
  <body>
    <canvas id="gpucanvas"></canvas>

    <div class="code-overlay">
      <div class="nav-tabs">
        <a href="/" class="nav-tab">Three.js</a>
        <a href="/webgl.html" class="nav-tab">WebGL</a>
        <a href="/webgpu.html" class="nav-tab active">WebGPU</a>
        <a href="/worker.html" class="nav-tab">Worker</a>
        <a href="/worker_tsl.html" class="nav-tab">Worker TSL</a>
      </div>
      <pre>
<span class="comment">// Native WebGPU example</span>

<span class="keyword">import</span> Stats <span class="keyword">from</span> <span class="string">'stats-gl'</span>

<span class="keyword">const</span> stats = <span class="keyword">new</span> Stats({ trackGPU: true });
<span class="keyword">await</span> stats.init(device);
document.body.appendChild(stats.dom);

<span class="keyword">function</span> render() {
    <span class="keyword">const</span> encoder = device.createCommandEncoder();
    stats.begin();

    <span class="keyword">const</span> pass = encoder.beginRenderPass({
        colorAttachments: [...],
        timestampWrites: stats.getTimestampWrites()
    });
    <span class="comment">// draw calls</span>
    pass.end();

    stats.end(encoder);
    device.queue.submit([encoder.finish()]);
    stats.update();
    requestAnimationFrame(render);
}</pre>
    </div>

    <div id="footer">
      Made with love &#10084;&#65039; by
      <a
        href="https://twitter.com/onirenaud"
        target="_blank"
        >@onirenaud</a
      >
      -
      <a
        href="https://twitter.com/utsuboco"
        target="_blank"
        >@utsuboco</a
      >
    </div>

    <script type="module">
      import Stats from './dist/main.js';
      // import Stats from './lib/main.ts';

      async function main() {
        const canvas = document.querySelector('#gpucanvas');

        // Check WebGPU support
        if (!navigator.gpu) {
          document.body.innerHTML = '<div class="error-message">WebGPU is not supported in this browser.<br>Try Chrome 113+ or Edge 113+.</div>';
          return;
        }

        // Request adapter with timestamp-query feature
        const adapter = await navigator.gpu.requestAdapter();
        if (!adapter) {
          document.body.innerHTML = '<div class="error-message">Failed to get WebGPU adapter.</div>';
          return;
        }

        // Check timestamp-query support
        const hasTimestampQuery = adapter.features.has('timestamp-query');
        const requiredFeatures = hasTimestampQuery ? ['timestamp-query'] : [];

        const device = await adapter.requestDevice({
          requiredFeatures
        });

        if (!hasTimestampQuery) {
          console.warn('Stats-GL: timestamp-query not supported, GPU timing will not be available');
        }

        // Configure canvas
        const context = canvas.getContext('webgpu');
        const format = navigator.gpu.getPreferredCanvasFormat();
        context.configure({
          device,
          format,
          alphaMode: 'opaque'
        });

        // Initialize stats with native WebGPU device
        const stats = new Stats({ trackGPU: true, trackHz: true });
        await stats.init(device);
        document.body.appendChild(stats.dom);

        // Create shader module
        const shaderModule = device.createShaderModule({
          code: `
            struct Uniforms {
              rotation: f32,
              aspect: f32,
            }

            @group(0) @binding(0) var<uniform> uniforms: Uniforms;

            struct VertexOutput {
              @builtin(position) position: vec4f,
              @location(0) uv: vec2f,
            }

            @vertex
            fn vertexMain(@builtin(vertex_index) vertexIndex: u32) -> VertexOutput {
              // Triangle vertices
              var positions = array<vec2f, 3>(
                vec2f(0.0, 1.0),      // top
                vec2f(-0.866, -0.5),  // bottom left
                vec2f(0.866, -0.5)    // bottom right
              );

              var uvs = array<vec2f, 3>(
                vec2f(0.5, 0.0),  // top
                vec2f(0.0, 1.0),  // bottom left
                vec2f(1.0, 1.0)   // bottom right
              );

              let pos = positions[vertexIndex];
              let uv = uvs[vertexIndex];

              // Apply rotation and aspect ratio
              let scale = min(1.0, uniforms.aspect) * 0.5;
              let c = cos(uniforms.rotation);
              let s = sin(uniforms.rotation);
              let rotated = vec2f(
                pos.x * c - pos.y * s,
                pos.x * s + pos.y * c
              ) * scale;

              var output: VertexOutput;
              output.position = vec4f(rotated.x / uniforms.aspect, rotated.y, 0.0, 1.0);
              output.uv = uv;
              return output;
            }

            @fragment
            fn fragmentMain(@location(0) uv: vec2f) -> @location(0) vec4f {
              // Create RGB from UV coordinates
              return vec4f(uv.x, uv.y, 1.0 - (uv.x + uv.y) * 0.5, 1.0);
            }
          `
        });

        // Create uniform buffer
        const uniformBuffer = device.createBuffer({
          size: 8, // 2 floats
          usage: GPUBufferUsage.UNIFORM | GPUBufferUsage.COPY_DST
        });

        // Create bind group layout and pipeline layout
        const bindGroupLayout = device.createBindGroupLayout({
          entries: [{
            binding: 0,
            visibility: GPUShaderStage.VERTEX,
            buffer: { type: 'uniform' }
          }]
        });

        const pipelineLayout = device.createPipelineLayout({
          bindGroupLayouts: [bindGroupLayout]
        });

        // Create render pipeline
        const pipeline = device.createRenderPipeline({
          layout: pipelineLayout,
          vertex: {
            module: shaderModule,
            entryPoint: 'vertexMain'
          },
          fragment: {
            module: shaderModule,
            entryPoint: 'fragmentMain',
            targets: [{ format }]
          },
          primitive: {
            topology: 'triangle-list'
          }
        });

        // Create bind group
        const bindGroup = device.createBindGroup({
          layout: bindGroupLayout,
          entries: [{
            binding: 0,
            resource: { buffer: uniformBuffer }
          }]
        });

        // Animation variables
        let rotation = 0;
        let lastTime = 0;

        function render(currentTime = 0) {
          // Update rotation
          const deltaTime = (currentTime - lastTime) * 0.001;
          lastTime = currentTime;
          rotation += deltaTime;

          // Resize canvas to match display size with devicePixelRatio
          const dpr = window.devicePixelRatio || 1;
          const displayWidth = Math.floor(canvas.clientWidth * dpr);
          const displayHeight = Math.floor(canvas.clientHeight * dpr);

          if (canvas.width !== displayWidth || canvas.height !== displayHeight) {
            canvas.width = displayWidth;
            canvas.height = displayHeight;
          }

          const aspect = displayWidth / displayHeight;

          // Update uniforms
          const uniformData = new Float32Array([rotation, aspect]);
          device.queue.writeBuffer(uniformBuffer, 0, uniformData);

          // Create command encoder
          const encoder = device.createCommandEncoder();

          // Begin CPU timing
          stats.begin();

          // Begin render pass with timestampWrites for GPU timing
          const pass = encoder.beginRenderPass({
            colorAttachments: [{
              view: context.getCurrentTexture().createView(),
              loadOp: 'clear',
              storeOp: 'store',
              clearValue: { r: 0.1, g: 0.1, b: 0.1, a: 1.0 }
            }],
            timestampWrites: stats.getTimestampWrites()
          });

          pass.setPipeline(pipeline);
          pass.setBindGroup(0, bindGroup);
          pass.draw(3);
          pass.end();

          // End timing and resolve GPU timestamps
          stats.end(encoder);

          // Submit commands
          device.queue.submit([encoder.finish()]);

          // Update stats display
          stats.update();

          requestAnimationFrame(render);
        }

        // Start animation
        render();
      }

      main().catch(err => {
        console.error('WebGPU initialization failed:', err);
        document.body.innerHTML = `<div class="error-message">WebGPU initialization failed:<br>${err.message}</div>`;
      });
    </script>
  </body>
</html>