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Launch BlackRiver Gemma 4 multimodal WebGPU Space

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  1. .gitattributes +7 -0
  2. README.md +54 -0
  3. index.html +1758 -0
  4. landing.js +717 -0
  5. transformers-gemma4.js +195 -0
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+ *.7z filter=lfs diff=lfs merge=lfs -text
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+ *.bin filter=lfs diff=lfs merge=lfs -text
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+ *.gguf filter=lfs diff=lfs merge=lfs -text
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+ *.onnx filter=lfs diff=lfs merge=lfs -text
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+ *.safetensors filter=lfs diff=lfs merge=lfs -text
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+ *.tar filter=lfs diff=lfs merge=lfs -text
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+ *.zip filter=lfs diff=lfs merge=lfs -text
README.md ADDED
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+ ---
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+ title: BlackRiver Gemma 4 Multimodal
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+ emoji: 🌊
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+ colorFrom: blue
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+ colorTo: indigo
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+ sdk: static
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+ app_file: index.html
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+ pinned: false
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+ short_description: Gemma 4 E2B/E4B with vision, audio and text running locally on WebGPU.
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+ models:
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+ - onnx-community/gemma-4-E2B-it-ONNX
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+ - onnx-community/gemma-4-E4B-it-ONNX
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+ ---
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+
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+ # BlackRiver AI · Gemma 4 Multimodal
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+
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+ A standalone BlackRiver AI implementation of Gemma 4 for fully local browser inference with WebGPU.
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+
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+ ## Capabilities
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+
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+ - Gemma 4 E2B and E4B model selection
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+ - Text conversation
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+ - Image understanding
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+ - Audio recording and transcription/instruction input
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+ - Streaming generation
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+ - Local browser cache for model weights
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+ - Rendered WebGPU kernel inspection
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+ - No inference server: prompts and media stay on the user's device
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+
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+ The first model load downloads the selected ONNX weights from Hugging Face. A WebGPU-capable browser and sufficient GPU memory are required. E4B requires more memory than E2B.
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+
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+ ## BlackRiver AI implementation
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+
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+ This Space packages the models into a unified BlackRiver interface and adds the multimodal browser workflow used here, including image attachment, microphone capture, 16 kHz audio preparation, E2B/E4B selection and media-history handling for reliable repeated generations.
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+
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+ BlackRiver AI does not claim authorship of the underlying models or the original WebGPU research work.
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+
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+ ## Credits
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+
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+ - **Gemma 4 models:** Google — [Gemma 4 E2B](https://huggingface.co/google/gemma-4-E2B)
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+ - **ONNX model conversions:** [ONNX Community E2B](https://huggingface.co/onnx-community/gemma-4-E2B-it-ONNX) and [E4B](https://huggingface.co/onnx-community/gemma-4-E4B-it-ONNX)
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+ - **Browser runtime:** [Transformers.js](https://huggingface.co/docs/transformers.js)
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+ - **Original WebGPU demo foundation:** [WebML Community](https://huggingface.co/spaces/webml-community/gemma-4-webgpu-kernels)
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+ - **Original optimized WebGPU kernels:** Fable 5, as credited by the upstream demo
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+
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+ Model use remains subject to the licenses and terms published in the respective model repositories.
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+
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+ ## Files
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+
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+ - `index.html` — complete BlackRiver multimodal interface
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+ - `transformers-gemma4.js` — Gemma 4 E2B/E4B Transformers.js adapter
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+ - `landing.js` — landing-page WebGL background
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+
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+ No build step or server backend is required.
index.html ADDED
@@ -0,0 +1,1758 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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+ <!doctype html>
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+ <html lang="en">
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+ <head>
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+ <meta charset="utf-8" />
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+ <meta name="viewport" content="width=device-width, initial-scale=1, viewport-fit=cover" />
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+ <meta name="color-scheme" content="dark" />
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+ <title>BlackRiver AI · Gemma 4 Multimodal</title>
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+ <link rel="icon" type="image/svg+xml" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 64 64'%3E%3Crect x='7' y='7' width='50' height='50' rx='15' fill='none' stroke='%238DB4FF' stroke-width='3'/%3E%3Cpath d='M16 39.5C25 25 35.5 43 47 19.5' stroke='%23F7F9FC' stroke-width='4.6' stroke-linecap='round' fill='none'/%3E%3Cpath d='M16 28.5C25 14 36 32 47 8.5' stroke='%238DB4FF' stroke-width='3.1' stroke-linecap='round' fill='none' opacity='.8'/%3E%3C/svg%3E">
9
+ <meta name="description" content="BlackRiver AI implementation of Gemma 4 E2B and E4B — vision, audio and text running locally with WebGPU." />
10
+ <meta property="og:title" content="BlackRiver AI · Gemma 4 Multimodal" />
11
+ <meta property="og:description" content="Run Gemma 4 E2B or E4B locally with vision, audio and text input through WebGPU." />
12
+ <link rel="preconnect" href="https://fonts.googleapis.com">
13
+ <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
14
+ <link href="https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Geist+Mono:wght@400;500&display=swap" rel="stylesheet">
15
+ <script type="importmap">
16
+ {
17
+ "imports": {
18
+ "three": "https://cdn.jsdelivr.net/npm/three@0.169.0/build/three.module.js",
19
+ "three/examples/jsm/": "https://cdn.jsdelivr.net/npm/three@0.169.0/examples/jsm/"
20
+ }
21
+ }
22
+ </script>
23
+ <style>
24
+ :root {
25
+ --bg: #020203;
26
+ --t1: rgba(255, 255, 255, 0.92);
27
+ --t2: rgba(255, 255, 255, 0.55);
28
+ --t3: rgba(255, 255, 255, 0.32);
29
+ --t4: rgba(255, 255, 255, 0.20);
30
+ --line: rgba(255, 255, 255, 0.08);
31
+ --line-soft: rgba(255, 255, 255, 0.06);
32
+ --panel: rgba(255, 255, 255, 0.03);
33
+ --panel-hover: rgba(255, 255, 255, 0.06);
34
+ --ok: #64ffa0;
35
+ --warn: #ffcd6b;
36
+ --danger: #ff7a6b;
37
+ --user-bubble: rgba(255, 255, 255, 0.065);
38
+ --display: "Instrument Serif", Georgia, "Times New Roman", serif;
39
+ --body: "Geist", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
40
+ --mono: "Geist Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
41
+ --maxw: 820px;
42
+ }
43
+ * { box-sizing: border-box; margin: 0; padding: 0; }
44
+ html { height: 100%; }
45
+ body {
46
+ background: var(--bg);
47
+ color: var(--t1);
48
+ font-family: var(--body);
49
+ font-size: 16px;
50
+ font-weight: 400;
51
+ line-height: 1.6;
52
+ -webkit-font-smoothing: antialiased;
53
+ height: 100dvh;
54
+ overflow-x: hidden;
55
+ overflow-y: scroll;
56
+ scroll-behavior: smooth;
57
+ }
58
+ button, textarea, input { font: inherit; color: inherit; }
59
+ button { appearance: none; background: none; border: 0; cursor: pointer; }
60
+ a { color: inherit; text-decoration: none; }
61
+ ::selection { background: rgba(255, 255, 255, 0.18); }
62
+ body::-webkit-scrollbar { width: 0; }
63
+ .screen { min-height: 100dvh; position: relative; width: 100%; }
64
+
65
+ /* LANDING */
66
+ #landing {
67
+ display: flex;
68
+ flex-direction: column;
69
+ overflow: hidden;
70
+ }
71
+ #crt-frame {
72
+ position: absolute;
73
+ inset: 0;
74
+ z-index: 0;
75
+ overflow: hidden;
76
+ pointer-events: none;
77
+ opacity: 0;
78
+ transition: opacity 2.4s cubic-bezier(0.25, 0.1, 0.25, 1) 0.6s;
79
+ }
80
+ #crt-frame.visible { opacity: 1; }
81
+ #crt-frame canvas { display: block; width: 100% !important; height: 100% !important; pointer-events: none; }
82
+ .hero-fade {
83
+ position: absolute;
84
+ bottom: 0; left: 0;
85
+ width: 100%; height: 68%;
86
+ background: linear-gradient(to top, var(--bg) 0%, var(--bg) 14%, rgba(2, 2, 3, 0.55) 52%, transparent 100%);
87
+ z-index: 1;
88
+ pointer-events: none;
89
+ opacity: 0;
90
+ transition: opacity 2s ease 1s;
91
+ }
92
+ .hero-fade.in { opacity: 1; }
93
+ .hero-overlay {
94
+ position: relative;
95
+ z-index: 2;
96
+ flex: 1;
97
+ display: flex;
98
+ flex-direction: column;
99
+ pointer-events: none;
100
+ min-height: 100dvh;
101
+ }
102
+ .brand-name {
103
+ font-family: var(--mono);
104
+ font-size: 12px;
105
+ font-weight: 500;
106
+ letter-spacing: 0.22em;
107
+ text-transform: uppercase;
108
+ color: var(--t1);
109
+ }
110
+ .hero-content {
111
+ flex: 1;
112
+ display: flex;
113
+ flex-direction: column;
114
+ justify-content: flex-end;
115
+ padding: 0 48px 18px;
116
+ pointer-events: none;
117
+ }
118
+ .eyebrow {
119
+ display: inline-flex;
120
+ align-items: center;
121
+ gap: 10px;
122
+ width: fit-content;
123
+ font-family: var(--mono);
124
+ font-size: 11px;
125
+ letter-spacing: 0.2em;
126
+ text-transform: uppercase;
127
+ color: var(--t3);
128
+ margin-bottom: 22px;
129
+ text-shadow: 0 2px 16px var(--bg);
130
+ }
131
+ .eyebrow::before {
132
+ content: "";
133
+ flex-shrink: 0;
134
+ width: 7px; height: 7px; border-radius: 50%;
135
+ background: var(--ok);
136
+ box-shadow: 0 0 12px rgba(100, 255, 160, 0.5);
137
+ animation: statusPulse 2.4s ease-in-out infinite;
138
+ }
139
+ .hero-h1 {
140
+ font-family: var(--display);
141
+ font-size: clamp(44px, 7.6vw, 100px);
142
+ font-weight: 400;
143
+ line-height: 0.98;
144
+ letter-spacing: -0.015em;
145
+ color: #fff;
146
+ margin-bottom: 30px;
147
+ max-width: 26ch;
148
+ text-shadow: 0 3px 40px var(--bg), 0 1px 14px rgba(2, 2, 3, 0.85);
149
+ }
150
+ .hero-h1 .thin { color: var(--t3); }
151
+ .hero-row {
152
+ display: flex;
153
+ align-items: flex-end;
154
+ justify-content: space-between;
155
+ gap: 56px;
156
+ }
157
+ .hero-main { display: flex; flex-direction: column; min-width: 0; }
158
+ .hero-sub {
159
+ font-size: 15px;
160
+ font-weight: 300;
161
+ line-height: 1.7;
162
+ color: var(--t2);
163
+ max-width: 52ch;
164
+ text-shadow: 0 2px 16px var(--bg), 0 1px 30px var(--bg);
165
+ margin-bottom: 26px;
166
+ }
167
+ .hero-sub b { color: var(--t1); font-weight: 500; }
168
+ .hero-stats { display: flex; flex-wrap: wrap; gap: 36px; }
169
+ .stat { display: flex; flex-direction: column; gap: 5px; }
170
+ .stat-val {
171
+ font-family: var(--display);
172
+ font-size: 30px;
173
+ font-weight: 400;
174
+ letter-spacing: -0.01em;
175
+ color: var(--t1);
176
+ line-height: 1;
177
+ text-shadow: 0 2px 16px var(--bg);
178
+ }
179
+ .stat-label {
180
+ font-family: var(--mono);
181
+ font-size: 10.5px;
182
+ letter-spacing: 0.12em;
183
+ text-transform: uppercase;
184
+ color: var(--t3);
185
+ }
186
+ .hero-side {
187
+ display: flex;
188
+ flex-direction: column;
189
+ align-items: flex-end;
190
+ gap: 18px;
191
+ flex-shrink: 0;
192
+ text-align: right;
193
+ }
194
+ .hero-actions {
195
+ display: flex;
196
+ align-items: center;
197
+ gap: 12px;
198
+ pointer-events: auto;
199
+ }
200
+ .btn-primary {
201
+ position: relative;
202
+ display: inline-flex;
203
+ align-items: center;
204
+ gap: 10px;
205
+ padding: 14px 28px;
206
+ color: #000;
207
+ font-size: 13.5px;
208
+ font-weight: 500;
209
+ letter-spacing: 0.01em;
210
+ border-radius: 100px;
211
+ border: 1px solid #fff;
212
+ white-space: nowrap;
213
+ overflow: hidden;
214
+ isolation: isolate;
215
+ transition: opacity 0.2s ease;
216
+ }
217
+ .btn-primary::before {
218
+ content: "";
219
+ position: absolute;
220
+ inset: 0;
221
+ background: #fff;
222
+ border-radius: inherit;
223
+ transform: scaleX(1);
224
+ transform-origin: left center;
225
+ transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
226
+ z-index: -1;
227
+ }
228
+ .btn-primary:hover:not(:disabled)::before { transform: scaleX(0); transform-origin: right center; }
229
+ .btn-primary:hover:not(:disabled) { color: #fff; }
230
+ .btn-primary svg { width: 14px; height: 14px; }
231
+ .btn-primary:disabled { opacity: 0.4; cursor: not-allowed; }
232
+ .btn-secondary {
233
+ display: inline-flex;
234
+ align-items: center;
235
+ gap: 9px;
236
+ padding: 14px 26px;
237
+ color: var(--t2);
238
+ font-size: 13.5px;
239
+ font-weight: 400;
240
+ border-radius: 100px;
241
+ border: 1px solid var(--line);
242
+ white-space: nowrap;
243
+ transition: border-color 0.25s ease, color 0.25s ease;
244
+ }
245
+ .btn-secondary:hover { border-color: rgba(255, 255, 255, 0.4); color: var(--t1); }
246
+ .btn-secondary svg { width: 12px; height: 12px; }
247
+ .hero-foot {
248
+ display: flex;
249
+ flex-direction: column;
250
+ align-items: flex-end;
251
+ gap: 8px;
252
+ pointer-events: auto;
253
+ }
254
+ .kernel-note-cta {
255
+ width: fit-content;
256
+ font-size: 13px;
257
+ font-weight: 400;
258
+ color: var(--t2);
259
+ border-bottom: 1px solid var(--line);
260
+ padding-bottom: 2px;
261
+ transition: color 0.2s ease, border-color 0.2s ease;
262
+ }
263
+ .kernel-note-cta b { color: var(--t1); font-weight: 600; }
264
+ .kernel-note-cta:hover { color: var(--t1); border-color: rgba(255, 255, 255, 0.4); }
265
+ .hero-foot-note {
266
+ font-family: var(--mono);
267
+ font-size: 10px;
268
+ letter-spacing: 0.06em;
269
+ color: var(--t4);
270
+ }
271
+ .scroll-cue {
272
+ flex: 0 0 auto;
273
+ align-self: center;
274
+ display: flex;
275
+ flex-direction: column;
276
+ align-items: center;
277
+ gap: 9px;
278
+ padding-bottom: 18px;
279
+ pointer-events: none;
280
+ opacity: 0;
281
+ transition: opacity 0.8s ease 1.8s;
282
+ }
283
+ .scroll-cue.in { opacity: 1; }
284
+ .scroll-cue span {
285
+ font-family: var(--mono);
286
+ font-size: 9.5px;
287
+ letter-spacing: 0.2em;
288
+ text-transform: uppercase;
289
+ color: var(--t4);
290
+ }
291
+ .scroll-cue-line { width: 1px; height: 30px; background: var(--line); position: relative; overflow: hidden; }
292
+ .scroll-cue-line::after {
293
+ content: "";
294
+ position: absolute;
295
+ top: -100%; left: 0;
296
+ width: 100%; height: 100%;
297
+ background: linear-gradient(to bottom, transparent, rgba(255, 255, 255, 0.4), transparent);
298
+ animation: scrollDrop 2s ease-in-out infinite;
299
+ }
300
+
301
+ /* CHAT */
302
+ #chat {
303
+ display: flex;
304
+ flex-direction: column;
305
+ height: 100dvh;
306
+ background: radial-gradient(circle at 50% -20%, rgba(255, 255, 255, 0.035), transparent 55%), var(--bg);
307
+ }
308
+ .chat-head {
309
+ position: relative;
310
+ flex: 0 0 auto;
311
+ border-bottom: 1px solid var(--line-soft);
312
+ background: rgba(2, 2, 3, 0.72);
313
+ backdrop-filter: blur(12px);
314
+ -webkit-backdrop-filter: blur(12px);
315
+ }
316
+ .chat-head-inner {
317
+ margin: 0 auto;
318
+ max-width: var(--maxw);
319
+ padding: 16px 28px;
320
+ display: flex;
321
+ align-items: center;
322
+ gap: 16px;
323
+ }
324
+ .to-top {
325
+ display: inline-flex;
326
+ align-items: center;
327
+ gap: 9px;
328
+ flex-shrink: 0;
329
+ transition: opacity 0.2s ease;
330
+ }
331
+ .to-top:hover { opacity: 0.7; }
332
+ .to-top svg { width: 13px; height: 13px; color: var(--t3); }
333
+ .to-top .brand-name { font-size: 11px; }
334
+ .status {
335
+ flex: 1;
336
+ min-width: 0;
337
+ display: flex;
338
+ align-items: center;
339
+ gap: 9px;
340
+ color: var(--t2);
341
+ font-size: 13px;
342
+ }
343
+ .status-dot {
344
+ width: 7px; height: 7px; border-radius: 50%;
345
+ background: var(--t4);
346
+ flex-shrink: 0;
347
+ transition: background 0.3s ease, box-shadow 0.3s ease;
348
+ }
349
+ .status.loading .status-dot { background: var(--warn); box-shadow: 0 0 10px rgba(255, 205, 107, 0.5); }
350
+ .status.ready .status-dot { background: var(--ok); box-shadow: 0 0 10px rgba(100, 255, 160, 0.5); }
351
+ .status.busy .status-dot { background: var(--ok); box-shadow: 0 0 10px rgba(100, 255, 160, 0.5); animation: statusPulse 1.1s ease-in-out infinite; }
352
+ .status.error .status-dot { background: var(--danger); box-shadow: 0 0 10px rgba(255, 122, 107, 0.5); }
353
+ .status-text { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-variant-numeric: tabular-nums; }
354
+ .status-text strong { color: var(--t1); font-weight: 500; }
355
+ .chat-head-actions { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
356
+ .head-btn {
357
+ display: inline-flex;
358
+ align-items: center;
359
+ gap: 7px;
360
+ padding: 8px 15px;
361
+ font-family: var(--mono);
362
+ font-size: 11px;
363
+ letter-spacing: 0.08em;
364
+ text-transform: uppercase;
365
+ color: var(--t2);
366
+ border: 1px solid var(--line);
367
+ border-radius: 100px;
368
+ transition: border-color 0.2s ease, color 0.2s ease, opacity 0.2s ease;
369
+ }
370
+ .head-btn:hover:not(:disabled) { border-color: rgba(255, 255, 255, 0.35); color: var(--t1); }
371
+ .head-btn:disabled { opacity: 0.35; cursor: not-allowed; }
372
+ .head-btn[hidden] { display: none; }
373
+ .head-btn.solid { background: #fff; color: #000; border-color: #fff; }
374
+ .head-btn.solid:hover:not(:disabled) { opacity: 0.85; color: #000; }
375
+ .bar {
376
+ position: absolute;
377
+ left: 0; right: 0; bottom: 0;
378
+ height: 2px;
379
+ overflow: hidden;
380
+ pointer-events: none;
381
+ }
382
+ .bar > div {
383
+ height: 100%;
384
+ width: 0%;
385
+ background: linear-gradient(90deg, var(--t2), #fff);
386
+ transition: opacity 0.4s ease;
387
+ }
388
+ .bar.done > div { opacity: 0; }
389
+ .thread-scroll {
390
+ flex: 1 1 auto;
391
+ min-height: 0;
392
+ overflow-y: auto;
393
+ scroll-behavior: smooth;
394
+ }
395
+ .thread {
396
+ margin: 0 auto;
397
+ max-width: var(--maxw);
398
+ min-height: 100%;
399
+ padding: 40px 28px 24px;
400
+ display: flex;
401
+ flex-direction: column;
402
+ gap: 32px;
403
+ }
404
+ .welcome {
405
+ margin: auto 0;
406
+ text-align: center;
407
+ padding: 4vh 0;
408
+ animation: rise 0.7s cubic-bezier(0.2, 0.7, 0.2, 1) both;
409
+ }
410
+ .welcome h2 {
411
+ font-family: var(--display);
412
+ font-size: clamp(30px, 6vw, 46px);
413
+ font-weight: 400;
414
+ line-height: 1.05;
415
+ color: #fff;
416
+ margin-bottom: 14px;
417
+ }
418
+ .welcome h2 .thin { color: var(--t3); }
419
+ .welcome p { color: var(--t2); max-width: 46ch; margin: 0 auto 28px; font-weight: 300; }
420
+ .seeds { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
421
+ .seed {
422
+ padding: 9px 16px;
423
+ font-size: 13.5px;
424
+ color: var(--t2);
425
+ background: var(--panel);
426
+ border: 1px solid var(--line);
427
+ border-radius: 100px;
428
+ transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease, transform 0.15s ease, opacity 0.2s ease;
429
+ }
430
+ .seed:hover:not(:disabled) { border-color: rgba(255, 255, 255, 0.3); color: var(--t1); background: var(--panel-hover); transform: translateY(-1px); }
431
+ .seed:disabled { opacity: 0.4; cursor: not-allowed; }
432
+ .msg { display: flex; flex-direction: column; animation: rise 0.4s cubic-bezier(0.2, 0.7, 0.2, 1) both; }
433
+ .role {
434
+ display: flex;
435
+ align-items: center;
436
+ gap: 8px;
437
+ font-family: var(--mono);
438
+ font-size: 10.5px;
439
+ letter-spacing: 0.16em;
440
+ text-transform: uppercase;
441
+ margin-bottom: 10px;
442
+ }
443
+ .role::before { content: ""; width: 5px; height: 5px; border-radius: 50%; }
444
+ .msg.user { align-items: flex-end; }
445
+ .msg.user .role { color: var(--t3); }
446
+ .msg.user .role::before { background: var(--t3); }
447
+ .msg.assistant .role { color: var(--ok); }
448
+ .msg.assistant .role::before { background: var(--ok); }
449
+ .bubble { overflow-wrap: anywhere; }
450
+ .bubble.user {
451
+ background: var(--user-bubble);
452
+ border: 1px solid var(--line);
453
+ border-radius: 16px 16px 4px 16px;
454
+ padding: 12px 17px;
455
+ line-height: 1.55;
456
+ max-width: min(82%, 600px);
457
+ white-space: pre-wrap;
458
+ color: var(--t1);
459
+ }
460
+ .bubble.assistant { font-size: 16px; line-height: 1.72; color: var(--t1); max-width: 100%; }
461
+ .bubble.assistant > :first-child { margin-top: 0; }
462
+ .bubble.assistant > :last-child { margin-bottom: 0; }
463
+ .bubble.assistant p { margin: 0 0 0.9em; }
464
+ .bubble.assistant strong { color: #fff; font-weight: 600; }
465
+ .bubble.assistant em { font-style: italic; }
466
+ .bubble.assistant a { color: #8ab4ff; text-decoration: underline; text-underline-offset: 2px; }
467
+ .bubble.assistant a:hover { color: #aecbff; }
468
+ .bubble.assistant h1, .bubble.assistant h2, .bubble.assistant h3,
469
+ .bubble.assistant h4, .bubble.assistant h5, .bubble.assistant h6 {
470
+ color: #fff; font-weight: 600; line-height: 1.25; margin: 1.3em 0 0.6em;
471
+ }
472
+ .bubble.assistant h1 { font-size: 1.5em; }
473
+ .bubble.assistant h2 { font-size: 1.3em; }
474
+ .bubble.assistant h3 { font-size: 1.13em; }
475
+ .bubble.assistant h4, .bubble.assistant h5, .bubble.assistant h6 { font-size: 1em; }
476
+ .bubble.assistant ul, .bubble.assistant ol { margin: 0 0 0.9em; padding-left: 1.5em; }
477
+ .bubble.assistant li { margin: 0.25em 0; }
478
+ .bubble.assistant li::marker { color: var(--t3); }
479
+ .bubble.assistant blockquote {
480
+ margin: 0 0 0.9em; padding: 2px 0 2px 16px;
481
+ border-left: 2px solid var(--line); color: var(--t2);
482
+ }
483
+ .bubble.assistant hr { border: 0; border-top: 1px solid var(--line); margin: 1.3em 0; }
484
+ .bubble.assistant code {
485
+ font-family: var(--mono);
486
+ font-size: 0.85em;
487
+ background: var(--panel);
488
+ border: 1px solid var(--line);
489
+ border-radius: 5px;
490
+ padding: 1px 5px;
491
+ }
492
+ .bubble.assistant pre {
493
+ margin: 0 0 0.9em;
494
+ padding: 14px 16px;
495
+ background: #0a0a0c;
496
+ border: 1px solid var(--line);
497
+ border-radius: 12px;
498
+ overflow-x: auto;
499
+ }
500
+ .bubble.assistant pre code { background: none; border: 0; padding: 0; font-size: 0.82em; line-height: 1.6; }
501
+ .bubble.assistant table { border-collapse: collapse; margin: 0 0 0.9em; font-size: 0.92em; display: block; overflow-x: auto; }
502
+ .bubble.assistant th, .bubble.assistant td { border: 1px solid var(--line); padding: 6px 11px; text-align: left; }
503
+ .bubble.assistant th { background: var(--panel); color: var(--t1); font-weight: 600; }
504
+ .bubble.assistant pre::-webkit-scrollbar, .bubble.assistant table::-webkit-scrollbar { height: 8px; }
505
+ .bubble.assistant pre::-webkit-scrollbar-thumb, .bubble.assistant table::-webkit-scrollbar-thumb { background: var(--line); border-radius: 8px; }
506
+ .meta {
507
+ font-family: var(--mono);
508
+ font-size: 10.5px;
509
+ letter-spacing: 0.04em;
510
+ color: var(--t3);
511
+ margin-top: 12px;
512
+ }
513
+ .thinking { display: inline-flex; gap: 5px; padding: 4px 0; }
514
+ .thinking span { width: 7px; height: 7px; border-radius: 50%; background: var(--ok); opacity: 0.5; animation: bob 1.3s ease-in-out infinite; }
515
+ .thinking span:nth-child(2) { animation-delay: 0.18s; }
516
+ .thinking span:nth-child(3) { animation-delay: 0.36s; }
517
+ .caret { display: inline-block; width: 2px; height: 1.05em; margin-left: 2px; vertical-align: -0.16em; background: var(--ok); animation: blink 1s steps(2) infinite; }
518
+
519
+ /* MULTIMODAL ATTACHMENTS */
520
+ .attachments { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 8px; }
521
+ .attachment {
522
+ position: relative;
523
+ display: inline-flex;
524
+ align-items: center;
525
+ gap: 8px;
526
+ padding: 6px 10px;
527
+ background: var(--panel);
528
+ border: 1px solid var(--line);
529
+ border-radius: 10px;
530
+ font-size: 12px;
531
+ color: var(--t2);
532
+ }
533
+ .attachment img { width: 32px; height: 32px; border-radius: 6px; object-fit: cover; }
534
+ .attachment .att-name { max-width: 120px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
535
+ .attachment .att-type { font-family: var(--mono); font-size: 9px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--t4); }
536
+ .attachment .att-remove {
537
+ display: grid; place-items: center;
538
+ width: 18px; height: 18px;
539
+ border-radius: 50%;
540
+ background: rgba(255,255,255,0.08);
541
+ color: var(--t3);
542
+ font-size: 12px;
543
+ line-height: 1;
544
+ transition: background 0.15s ease, color 0.15s ease;
545
+ }
546
+ .attachment .att-remove:hover { background: rgba(255,122,107,0.2); color: var(--danger); }
547
+ .attachment.audio .att-icon { font-size: 18px; }
548
+ .attachment.audio canvas { width: 48px; height: 24px; border-radius: 4px; }
549
+
550
+ .composer-wrap {
551
+ flex: 0 0 auto;
552
+ background: linear-gradient(rgba(2, 2, 3, 0), var(--bg) 30%);
553
+ padding-top: 8px;
554
+ }
555
+ .composer { margin: 0 auto; max-width: var(--maxw); padding: 0 28px 22px; }
556
+ .composer-tools {
557
+ display: flex;
558
+ align-items: center;
559
+ gap: 4px;
560
+ margin-bottom: 8px;
561
+ }
562
+ .tool-btn {
563
+ display: grid;
564
+ place-items: center;
565
+ width: 34px;
566
+ height: 34px;
567
+ border-radius: 9px;
568
+ color: var(--t3);
569
+ border: 1px solid transparent;
570
+ transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
571
+ }
572
+ .tool-btn:hover:not(:disabled) { border-color: var(--line); color: var(--t1); background: var(--panel); }
573
+ .tool-btn:disabled { opacity: 0.3; cursor: not-allowed; }
574
+ .tool-btn.recording { color: var(--danger); border-color: rgba(255,122,107,0.3); background: rgba(255,122,107,0.08); animation: statusPulse 1s ease-in-out infinite; }
575
+ .tool-btn svg { width: 17px; height: 17px; }
576
+ .field {
577
+ display: grid;
578
+ grid-template-columns: 1fr 44px;
579
+ align-items: flex-end;
580
+ gap: 8px;
581
+ background: var(--panel);
582
+ border: 1px solid var(--line);
583
+ border-radius: 18px;
584
+ padding: 8px 8px 8px 18px;
585
+ transition: border-color 0.2s ease, background 0.2s ease;
586
+ }
587
+ .field:focus-within { border-color: rgba(255, 255, 255, 0.28); background: rgba(255, 255, 255, 0.05); }
588
+ textarea {
589
+ background: transparent;
590
+ border: 0;
591
+ outline: none;
592
+ resize: none;
593
+ width: 100%;
594
+ min-height: 42px;
595
+ max-height: 180px;
596
+ padding: 8px 0;
597
+ color: var(--t1);
598
+ }
599
+ textarea::placeholder { color: var(--t3); }
600
+ .icon-button {
601
+ display: grid;
602
+ place-items: center;
603
+ width: 42px;
604
+ height: 42px;
605
+ border-radius: 13px;
606
+ transition: background 0.2s ease, opacity 0.2s ease, transform 0.1s ease;
607
+ }
608
+ .icon-button svg { width: 19px; height: 19px; }
609
+ .icon-button:active:not(:disabled) { transform: scale(0.94); }
610
+ .icon-button:disabled { opacity: 0.3; cursor: not-allowed; }
611
+ .send-button { background: #fff; color: #000; }
612
+ .send-button:hover:not(:disabled) { opacity: 0.86; }
613
+ .stop-button { background: rgba(255, 122, 107, 0.14); color: var(--danger); border: 1px solid rgba(255, 122, 107, 0.3); display: none; }
614
+ .stop-button:hover:not(:disabled) { background: rgba(255, 122, 107, 0.22); }
615
+ .composer-meta {
616
+ display: flex;
617
+ align-items: center;
618
+ justify-content: center;
619
+ gap: 12px;
620
+ margin: 10px 4px 0;
621
+ min-height: 22px;
622
+ font-family: var(--mono);
623
+ font-size: 10.5px;
624
+ letter-spacing: 0.04em;
625
+ text-transform: uppercase;
626
+ color: var(--t3);
627
+ }
628
+ .thread-scroll::-webkit-scrollbar { width: 10px; }
629
+ .thread-scroll::-webkit-scrollbar-thumb { background: var(--line); border: 3px solid var(--bg); border-radius: 10px; }
630
+ :focus-visible { outline: 1px solid rgba(255, 255, 255, 0.45); outline-offset: 3px; }
631
+ textarea:focus, textarea:focus-visible { outline: none; }
632
+
633
+ /* kernels overlay */
634
+ .kx {
635
+ position: fixed;
636
+ inset: 0;
637
+ z-index: 50;
638
+ display: flex;
639
+ align-items: center;
640
+ justify-content: center;
641
+ padding: 28px;
642
+ }
643
+ .kx[hidden] { display: none; }
644
+ .kx-backdrop {
645
+ position: absolute;
646
+ inset: 0;
647
+ background: rgba(0, 0, 0, 0.62);
648
+ backdrop-filter: blur(6px);
649
+ -webkit-backdrop-filter: blur(6px);
650
+ animation: kxFade 0.25s ease;
651
+ }
652
+ .kx-panel {
653
+ position: relative;
654
+ display: flex;
655
+ flex-direction: column;
656
+ width: min(1080px, 100%);
657
+ height: min(86vh, 920px);
658
+ background: #0a0a0c;
659
+ border: 1px solid var(--line);
660
+ border-radius: 18px;
661
+ overflow: hidden;
662
+ box-shadow: 0 40px 120px -30px rgba(0, 0, 0, 0.9);
663
+ animation: kxRise 0.3s cubic-bezier(0.2, 0.7, 0.2, 1);
664
+ }
665
+ .kx-head {
666
+ display: flex;
667
+ align-items: flex-start;
668
+ justify-content: space-between;
669
+ gap: 16px;
670
+ padding: 20px 22px;
671
+ border-bottom: 1px solid var(--line-soft);
672
+ }
673
+ .kx-title h3 { font-family: var(--display); font-weight: 400; font-size: 26px; color: #fff; line-height: 1; }
674
+ .kx-sub { display: block; margin-top: 7px; font-size: 12.5px; color: var(--t3); }
675
+ .kx-close {
676
+ display: grid; place-items: center;
677
+ width: 34px; height: 34px;
678
+ flex-shrink: 0; border-radius: 9px;
679
+ color: var(--t2);
680
+ border: 1px solid var(--line);
681
+ transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
682
+ }
683
+ .kx-close:hover { color: var(--t1); border-color: rgba(255, 255, 255, 0.35); background: var(--panel); }
684
+ .kx-close svg { width: 15px; height: 15px; }
685
+ .kx-body { flex: 1; display: grid; grid-template-columns: 236px 1fr; min-height: 0; }
686
+ .kx-side { position: relative; min-width: 0; min-height: 0; border-right: 1px solid var(--line-soft); }
687
+ .kx-list { height: 100%; overflow-y: auto; padding: 10px; display: flex; flex-direction: column; gap: 2px; }
688
+ .kx-item {
689
+ flex-shrink: 0;
690
+ text-align: left;
691
+ padding: 9px 12px;
692
+ border-radius: 8px;
693
+ font-family: var(--mono);
694
+ font-size: 12px;
695
+ line-height: 1.5;
696
+ color: var(--t2);
697
+ white-space: nowrap;
698
+ overflow: hidden;
699
+ text-overflow: ellipsis;
700
+ transition: background 0.15s ease, color 0.15s ease;
701
+ }
702
+ .kx-item:hover { background: var(--panel); color: var(--t1); }
703
+ .kx-item.active { background: var(--panel-hover); color: #fff; }
704
+ .kx-view { display: flex; flex-direction: column; min-width: 0; min-height: 0; overflow: hidden; }
705
+ .kx-view-head {
706
+ display: flex; align-items: center; justify-content: space-between; gap: 12px;
707
+ padding: 12px 18px; border-bottom: 1px solid var(--line-soft);
708
+ }
709
+ .kx-name { font-family: var(--mono); font-size: 13px; color: var(--t1); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
710
+ .kx-view-actions { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }
711
+ .kx-lines { font-family: var(--mono); font-size: 11px; color: var(--t4); }
712
+ .kx-copy {
713
+ font-family: var(--mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em;
714
+ color: var(--t2); border: 1px solid var(--line); border-radius: 100px; padding: 5px 13px;
715
+ transition: color 0.2s ease, border-color 0.2s ease;
716
+ }
717
+ .kx-copy:hover { color: var(--t1); border-color: rgba(255, 255, 255, 0.35); }
718
+ .kx-code { flex: 1; min-height: 0; min-width: 0; overflow: auto; margin: 0; padding: 18px 20px; font-family: var(--mono); font-size: 12.5px; line-height: 1.65; color: var(--t2); tab-size: 2; }
719
+ .kx-code code { white-space: pre; }
720
+ .k-cm { color: #5d6b6f; font-style: italic; }
721
+ .k-kw { color: #c792ea; }
722
+ .k-ty { color: #6fb3ff; }
723
+ .k-at { color: #ffb074; }
724
+ .k-nu { color: #7ee787; }
725
+ .kx-source { flex: 1; min-height: 0; display: flex; flex-direction: column; }
726
+ .kx-source[hidden] { display: none; }
727
+ .kx-code::-webkit-scrollbar, .kx-list::-webkit-scrollbar { width: 10px; height: 10px; }
728
+ .kx-code::-webkit-scrollbar-thumb, .kx-list::-webkit-scrollbar-thumb { background: var(--line); border: 3px solid #0a0a0c; border-radius: 10px; }
729
+ body.kx-locked { overflow: hidden; }
730
+
731
+ @keyframes kxFade { from { opacity: 0; } to { opacity: 1; } }
732
+ @keyframes kxRise { from { opacity: 0; transform: translateY(12px) scale(0.99); } to { opacity: 1; transform: none; } }
733
+ @keyframes statusPulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.3; } }
734
+ @keyframes scrollDrop { 0% { top: -100%; } 55% { top: 100%; } 100% { top: 100%; } }
735
+ @keyframes rise { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
736
+ @keyframes blink { 0%, 49% { opacity: 1; } 50%, 100% { opacity: 0; } }
737
+ @keyframes bob { 0%, 60%, 100% { opacity: 0.5; transform: translateY(0); } 30% { opacity: 1; transform: translateY(-5px); } }
738
+
739
+ .anim { opacity: 0; transition: opacity 0.9s cubic-bezier(0.25, 0.1, 0.25, 1); }
740
+ .anim.in { opacity: 1; }
741
+ .eyebrow { transition-delay: 0.35s; }
742
+ .hero-h1 { transition-delay: 0.5s; }
743
+ .hero-row { transition-delay: 0.78s; }
744
+
745
+ @media (prefers-reduced-motion: reduce) {
746
+ *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
747
+ .anim, #crt-frame, .hero-fade, .scroll-cue { opacity: 1 !important; }
748
+ .caret { opacity: 1; }
749
+ }
750
+
751
+ @media (max-width: 760px) {
752
+ .hero-content { padding: 0 22px 22px; }
753
+ .hero-h1 { font-size: clamp(38px, 12vw, 60px); margin-bottom: 24px; max-width: none; }
754
+ .hero-row { flex-direction: column; align-items: stretch; gap: 28px; }
755
+ .hero-side { align-items: flex-start; text-align: left; }
756
+ .hero-foot { align-items: flex-start; }
757
+ .hero-actions { flex-wrap: wrap; }
758
+ .hero-stats { gap: 22px 30px; }
759
+ .stat-val { font-size: 24px; }
760
+ .scroll-cue { display: none; }
761
+ .chat-head-inner { padding: 13px 18px; gap: 12px; }
762
+ .to-top .brand-name { display: none; }
763
+ .thread { padding: 28px 18px 20px; }
764
+ .composer { padding: 0 18px 18px; }
765
+ .bubble.user { max-width: 88%; }
766
+ .head-btn { padding: 8px 12px; }
767
+ .kx { padding: 0; }
768
+ .kx-panel { width: 100%; height: 100%; border-radius: 0; border: 0; }
769
+ .kx-body { grid-template-columns: 1fr; grid-template-rows: auto 1fr; }
770
+ .kx-side { border-right: 0; border-bottom: 1px solid var(--line-soft); }
771
+ .kx-list { flex-direction: row; height: auto; overflow-x: auto; overflow-y: hidden; }
772
+ .kx-item { flex-shrink: 0; }
773
+ }
774
+ </style>
775
+ <style id="blackriver-theme">
776
+ :root {
777
+ --bg: #020306;
778
+ --panel: rgba(141, 180, 255, 0.055);
779
+ --panel2: rgba(255, 255, 255, 0.035);
780
+ --line: rgba(196, 211, 255, 0.20);
781
+ --line-soft: rgba(196, 211, 255, 0.10);
782
+ --t1: #f7f9fc;
783
+ --t2: #98a2b3;
784
+ --t3: #626b7d;
785
+ --accent: #8db4ff;
786
+ --accent2: #8df1ff;
787
+ --green: #58e6b1;
788
+ --sans: "Inter", system-ui, sans-serif;
789
+ --mono: "Geist Mono", "SFMono-Regular", Consolas, monospace;
790
+ }
791
+
792
+ html, body { background: var(--bg); }
793
+ body { font-family: var(--sans); color: var(--t1); }
794
+ ::selection { background: rgba(141, 180, 255, 0.28); color: #fff; }
795
+
796
+ body::before {
797
+ content: "";
798
+ position: fixed; inset: 0; pointer-events: none; z-index: 9997;
799
+ background-image:
800
+ linear-gradient(rgba(141,180,255,.025) 1px, transparent 1px),
801
+ linear-gradient(90deg, rgba(141,180,255,.025) 1px, transparent 1px);
802
+ background-size: 52px 52px;
803
+ mask-image: linear-gradient(to bottom, #000, transparent 75%);
804
+ }
805
+ body::after {
806
+ content: "";
807
+ position: fixed; inset: 0; pointer-events: none; z-index: 9998; opacity: .025;
808
+ background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
809
+ }
810
+
811
+ #landing { background: #020306; isolation: isolate; }
812
+ #landing::after {
813
+ content: ""; position: absolute; inset: 0; z-index: 1; pointer-events: none;
814
+ background: radial-gradient(ellipse 60% 72% at 73% 44%, transparent 0%, rgba(2,3,6,.15) 45%, #020306 88%);
815
+ }
816
+ #crt-frame { opacity: .78; filter: saturate(.48) hue-rotate(169deg) contrast(1.12); }
817
+ .hero-fade { background: linear-gradient(90deg, rgba(2,3,6,.98) 0%, rgba(2,3,6,.78) 47%, rgba(2,3,6,.16) 100%); }
818
+ .hero-overlay { z-index: 2; }
819
+ .hero-content { width: min(1380px, calc(100% - 9vw)); padding-top: 5vh; }
820
+
821
+ .eyebrow {
822
+ display: flex; align-items: center; gap: 13px; margin-bottom: clamp(28px, 5vh, 58px);
823
+ color: var(--t2); font-family: var(--mono); font-size: 10px; font-weight: 500;
824
+ letter-spacing: .15em; text-transform: uppercase;
825
+ }
826
+ .eyebrow::before { display: none; }
827
+ .br-mark { width: 31px; height: 31px; flex: none; color: var(--t1); }
828
+ .br-mark.small { width: 22px; height: 22px; }
829
+ .br-lockup { display: grid; gap: 3px; }
830
+ .br-lockup strong { color: var(--t1); font-weight: 600; letter-spacing: .18em; }
831
+ .br-lockup span { color: var(--t3); font-size: 8px; letter-spacing: .17em; }
832
+
833
+ .hero-h1 {
834
+ max-width: 990px; margin-bottom: clamp(36px, 7vh, 78px);
835
+ font-family: var(--sans); font-size: clamp(54px, 7.8vw, 116px); line-height: .88;
836
+ letter-spacing: -.072em; font-weight: 580;
837
+ }
838
+ .hero-h1 .thin {
839
+ color: transparent; font-weight: 250;
840
+ background: linear-gradient(102deg, #f7f9fc 4%, #8db4ff 58%, #8df1ff 100%);
841
+ -webkit-background-clip: text; background-clip: text;
842
+ }
843
+ .hero-row { border-top: 1px solid var(--line); padding-top: 28px; grid-template-columns: minmax(0, 1.25fr) minmax(280px, .75fr); }
844
+ .hero-main { padding-right: clamp(30px, 6vw, 90px); }
845
+ .hero-side { border-left: 1px solid var(--line-soft); padding-left: clamp(24px, 4vw, 58px); }
846
+ .hero-sub { max-width: 710px; color: var(--t2); font-size: 14px; line-height: 1.75; }
847
+ .hero-sub b { color: var(--t1); }
848
+ .hero-stats { border-top-color: var(--line-soft); }
849
+ .stat { border-left: 1px solid var(--line-soft); padding-left: 15px; }
850
+ .stat:first-child { border-left: 0; padding-left: 0; }
851
+ .stat-val { font-family: var(--sans); font-size: 20px; font-weight: 450; letter-spacing: -.03em; }
852
+ .stat-label { font-size: 8px; letter-spacing: .14em; text-transform: uppercase; }
853
+
854
+ .hero-actions { align-items: stretch; }
855
+ .btn-primary {
856
+ min-height: 50px; border: 1px solid rgba(141,180,255,.62); border-radius: 0;
857
+ background: rgba(141,180,255,.12); color: #fff; box-shadow: inset 0 0 24px rgba(141,180,255,.04);
858
+ font-family: var(--mono); font-size: 10px; font-weight: 600; letter-spacing: .15em; text-transform: uppercase;
859
+ }
860
+ .btn-primary:hover { background: var(--accent); border-color: var(--accent); color: #020306; transform: none; }
861
+ .btn-primary::before { display: none; }
862
+ #landingModelSelect {
863
+ min-height: 50px !important; border-radius: 0 !important; border-color: var(--line) !important;
864
+ background: rgba(2,3,6,.64) !important; text-transform: uppercase; letter-spacing: .08em;
865
+ }
866
+ .hero-foot { border-top: 1px solid var(--line-soft); padding-top: 18px; }
867
+ .kernel-note-cta { color: var(--t2); font-family: var(--mono); font-size: 9px; letter-spacing: .06em; text-transform: uppercase; }
868
+ .kernel-note-cta b { color: var(--accent2); }
869
+ .hero-foot-note { font-size: 8px; letter-spacing: .12em; text-transform: uppercase; }
870
+ .scroll-cue { left: auto; right: 4.5vw; bottom: 24px; align-items: flex-end; }
871
+ .scroll-cue span { font-size: 8px; letter-spacing: .18em; text-transform: uppercase; }
872
+ .scroll-cue-line { background: linear-gradient(90deg, var(--accent), transparent); width: 82px; height: 1px; }
873
+
874
+ #chat {
875
+ background:
876
+ radial-gradient(circle at 50% 22%, rgba(32,49,82,.24), transparent 34%),
877
+ linear-gradient(180deg, #05070c 0%, #020306 100%);
878
+ }
879
+ .chat-head { background: rgba(2,3,6,.82); border-bottom: 1px solid var(--line); backdrop-filter: blur(24px); }
880
+ .chat-head-inner { max-width: 1280px; height: 64px; }
881
+ .to-top { gap: 11px; opacity: 1; font-family: var(--mono); letter-spacing: .14em; text-transform: uppercase; }
882
+ .to-top svg:not(.br-mark) { display: none; }
883
+ .to-top .brand-name { color: var(--t1); font-size: 9px; font-weight: 600; }
884
+ .status { font-family: var(--mono); font-size: 8px; letter-spacing: .14em; text-transform: uppercase; }
885
+ .status-dot { background: var(--t3); box-shadow: none; }
886
+ .status.ready .status-dot { background: var(--green); box-shadow: 0 0 12px rgba(88,230,177,.5); }
887
+ .head-btn {
888
+ height: 34px; border-radius: 0; border-color: var(--line); background: transparent !important;
889
+ color: var(--t2); font-family: var(--mono); font-size: 8px; font-weight: 500; letter-spacing: .1em; text-transform: uppercase;
890
+ }
891
+ .head-btn:hover { color: var(--t1); border-color: rgba(141,180,255,.55); background: rgba(141,180,255,.07) !important; }
892
+ .head-btn.solid { background: rgba(141,180,255,.12) !important; color: var(--t1); border-color: rgba(141,180,255,.45); }
893
+ .bar { height: 1px; }
894
+ .bar > div { background: linear-gradient(90deg, var(--accent), var(--accent2), var(--green)); }
895
+
896
+ .thread-scroll { scrollbar-color: rgba(141,180,255,.25) transparent; }
897
+ .thread { max-width: 900px; padding: 52px 0 180px; }
898
+ .welcome { min-height: 54vh; display: flex; flex-direction: column; justify-content: center; text-align: left; }
899
+ .welcome-mark { width: 46px; height: 46px; margin-bottom: 30px; color: var(--accent); }
900
+ .welcome h2 { max-width: 670px; font-family: var(--sans); font-size: clamp(44px, 6vw, 78px); line-height: .92; letter-spacing: -.06em; font-weight: 550; }
901
+ .welcome h2 .thin { color: var(--accent); font-weight: 250; }
902
+ .welcome p { margin: 22px 0 0; max-width: none; color: var(--t2); font-family: var(--mono); font-size: 10px; letter-spacing: .08em; text-transform: uppercase; }
903
+ .seeds { justify-content: flex-start; margin-top: 34px; }
904
+ .seed { border-radius: 0; border-color: var(--line); background: rgba(255,255,255,.02); font-family: var(--mono); font-size: 9px; letter-spacing: .05em; }
905
+ .seed:not(:disabled):hover { color: var(--accent2); border-color: var(--accent); background: rgba(141,180,255,.06); }
906
+
907
+ .msg { max-width: 100%; }
908
+ .msg .role { color: var(--t3); font-size: 8px; letter-spacing: .16em; text-transform: uppercase; }
909
+ .bubble { border-radius: 0; font-size: 14px; line-height: 1.72; }
910
+ .msg.user .bubble { background: rgba(141,180,255,.08); border: 1px solid rgba(141,180,255,.22); color: var(--t1); }
911
+ .msg.assistant .bubble { background: transparent; border-left: 1px solid var(--accent); padding-left: 20px; }
912
+ .msg-media img { border-radius: 0; border: 1px solid var(--line); }
913
+
914
+ .composer-wrap { background: linear-gradient(0deg, #020306 74%, transparent); border-top: 0; padding-top: 42px; }
915
+ .composer { max-width: 900px; display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 8px; }
916
+ .attachments { grid-column: 1 / -1; }
917
+ .composer-tools { grid-column: 1; align-self: stretch; gap: 6px; }
918
+ .field { grid-column: 2; min-height: 56px; border-radius: 0; border-color: rgba(141,180,255,.32); background: rgba(8,11,18,.94); box-shadow: 0 16px 60px rgba(0,0,0,.42); }
919
+ .field:focus-within { border-color: var(--accent); box-shadow: 0 0 0 1px rgba(141,180,255,.14), 0 16px 60px rgba(0,0,0,.42); }
920
+ .field textarea { font-family: var(--sans); font-size: 14px; }
921
+ .field textarea::placeholder { color: #5d6678; }
922
+ .tool-btn { width: 48px; height: 56px; border-radius: 0; border: 1px solid var(--line); background: rgba(8,11,18,.94); color: var(--t2); }
923
+ .tool-btn:hover:not(:disabled) { border-color: var(--accent); color: var(--accent2); background: rgba(141,180,255,.08); }
924
+ .tool-btn.recording { color: #ff938a; border-color: rgba(255,147,138,.5); background: rgba(255,147,138,.08); }
925
+ .icon-button { border-radius: 0; }
926
+ .send-button { color: #020306; background: var(--accent); }
927
+ .composer-meta { grid-column: 1 / -1; color: var(--t3); font-family: var(--mono); font-size: 8px; letter-spacing: .11em; text-transform: uppercase; }
928
+ .attachment { border-radius: 0; border-color: var(--line); background: rgba(8,11,18,.95); }
929
+
930
+ .kx-backdrop { background: rgba(2,3,6,.85); backdrop-filter: blur(15px); }
931
+ .kx-panel { border-radius: 0; border-color: var(--line); background: #060810; }
932
+ .kx-head, .kx-view-head { border-color: var(--line); }
933
+ .kx-title h3 { font-family: var(--mono); letter-spacing: .13em; text-transform: uppercase; }
934
+ .kx-side { border-color: var(--line); }
935
+ .kx-item.active { border-left-color: var(--accent); background: rgba(141,180,255,.08); }
936
+
937
+ @media (max-width: 800px) {
938
+ .hero-content { width: min(100% - 38px, 680px); padding-top: 28px; }
939
+ .eyebrow { margin-bottom: 34px; }
940
+ .hero-h1 { font-size: clamp(46px, 15vw, 72px); margin-bottom: 38px; }
941
+ .hero-row { grid-template-columns: 1fr; }
942
+ .hero-main { padding-right: 0; }
943
+ .hero-side { border-left: 0; border-top: 1px solid var(--line-soft); padding: 25px 0 0; }
944
+ .hero-stats { grid-template-columns: repeat(2, 1fr); row-gap: 20px; }
945
+ .stat:nth-child(3) { border-left: 0; padding-left: 0; }
946
+ .chat-head-inner { padding: 0 16px; }
947
+ #modelSelect { display: none; }
948
+ .thread, .composer { width: calc(100% - 28px); }
949
+ .welcome { min-height: 48vh; }
950
+ .welcome h2 { font-size: clamp(42px, 13vw, 64px); }
951
+ .composer-wrap { padding-bottom: max(10px, env(safe-area-inset-bottom)); }
952
+ }
953
+ .br-lab-dock { position: fixed; right: 16px; top: 50%; transform: translateY(-50%); z-index: 10000; display: flex; flex-direction: column; gap: 7px; padding: 6px; border: 1px solid rgba(196,211,255,.18); background: rgba(2,3,6,.78); backdrop-filter: blur(18px); box-shadow: 0 18px 60px rgba(0,0,0,.35); }
954
+ .br-lab-dock a { position: relative; width: 40px; height: 40px; display: grid; place-items: center; color: #98a2b3; border: 1px solid transparent; transition: .2s ease; }
955
+ .br-lab-dock a:hover { color: #f7f9fc; border-color: rgba(141,180,255,.35); background: rgba(141,180,255,.09); }
956
+ .br-lab-dock svg { width: 17px; height: 17px; }
957
+ .br-lab-dock span { position: absolute; right: 51px; white-space: nowrap; padding: 8px 10px; background: #080b12; border: 1px solid rgba(196,211,255,.18); font-family: var(--mono); font-size: 8px; letter-spacing: .14em; text-transform: uppercase; opacity: 0; pointer-events: none; transform: translateX(5px); transition: .2s ease; }
958
+ .br-lab-dock a:hover span { opacity: 1; transform: none; }
959
+ @media(max-width:650px) { .br-lab-dock { right: 7px; } .br-lab-dock a { width: 34px; height: 34px; } .br-lab-dock span { display: none; } }
960
+ </style>
961
+ </head>
962
+ <body>
963
+ <nav class="br-lab-dock" aria-label="BlackRiver navigation">
964
+ <a href="./" aria-label="Gemma 4 Space home"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.8"><path d="M3 11.5 12 4l9 7.5"/><path d="M5.5 10v10h13V10"/></svg><span>Space home</span></a>
965
+ <a href="https://blackriver-ai.vercel.app/labs.html" target="_blank" rel="noopener" aria-label="BlackRiver Labs"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.7"><rect x="3" y="3" width="7" height="7"/><rect x="14" y="3" width="7" height="7"/><rect x="3" y="14" width="7" height="7"/><rect x="14" y="14" width="7" height="7"/></svg><span>BlackRiver Labs</span></a>
966
+ </nav>
967
+
968
+ <section id="landing" class="screen">
969
+ <div id="crt-frame"></div>
970
+ <div class="hero-fade"></div>
971
+ <div class="hero-overlay">
972
+ <div class="hero-content">
973
+ <div class="eyebrow anim">
974
+ <svg class="br-mark" viewBox="0 0 32 32" fill="none" aria-hidden="true"><path d="M4 3h10v10H4zM18 3h10v10H18zM4 17h10v12H4z" fill="currentColor"/><path d="M18 17h10v4H18zM18 25h10v4H18z" fill="currentColor" opacity=".62"/></svg>
975
+ <span class="br-lockup"><strong>BlackRiver AI</strong><span>Private multimodal inference / WebGPU</span></span>
976
+ </div>
977
+ <h1 class="hero-h1 anim">Gemma 4.<br><span class="thin">Multimodal intelligence.</span></h1>
978
+ <div class="hero-row anim">
979
+ <div class="hero-main">
980
+ <p class="hero-sub">
981
+ <b>Gemma&nbsp;4 E2B/E4B</b> with native vision, audio and text intelligence.
982
+ Powered locally through WebGPU: the model is cached on this device and your data stays private.
983
+ </p>
984
+ <div class="hero-stats">
985
+ <div class="stat"><span class="stat-val">2.3B</span><span class="stat-label">Effective params</span></div>
986
+ <div class="stat"><span class="stat-val">128K</span><span class="stat-label">Context window</span></div>
987
+ <div class="stat"><span class="stat-val">~41</span><span class="stat-label">tok/s · M4&nbsp;Max</span></div>
988
+ <div class="stat"><span class="stat-val">100%</span><span class="stat-label">On-device</span></div>
989
+ </div>
990
+ </div>
991
+ <div class="hero-side">
992
+ <div class="hero-actions">
993
+ <button class="btn-primary" id="loadBtn" type="button">
994
+ <span id="loadBtnLabel">Initialize model</span>
995
+ <svg viewBox="0 0 16 16" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M8 2v9M4 7l4 4 4-4"/></svg>
996
+ </button>
997
+ <select id="landingModelSelect" style="appearance:auto;background:transparent;color:var(--t2);font-family:var(--mono);font-size:12px;padding:14px 16px;border:1px solid var(--line);border-radius:100px;cursor:pointer;">
998
+ <option value="onnx-community/gemma-4-E2B-it-ONNX">E2B · 2.3B</option>
999
+ <option value="onnx-community/gemma-4-E4B-it-ONNX">E4B · 4B</option>
1000
+ </select>
1001
+ </div>
1002
+ <div class="hero-foot">
1003
+ <a class="kernel-note-cta" href="https://x.com/xenovacom/status/2065656427117437213" target="_blank" rel="noopener">WebGPU kernels <b>100% written &amp; optimized by Fable&nbsp;5</b> →</a>
1004
+ <span class="hero-foot-note">Tuned for Apple M4 Max · experimental multimodal</span>
1005
+ </div>
1006
+ </div>
1007
+ </div>
1008
+ </div>
1009
+ <div class="scroll-cue" id="scrollCue">
1010
+ <span>Enter console</span>
1011
+ <div class="scroll-cue-line"></div>
1012
+ </div>
1013
+ </div>
1014
+ </section>
1015
+
1016
+ <section id="chat" class="screen">
1017
+ <header class="chat-head">
1018
+ <div class="chat-head-inner">
1019
+ <a class="to-top" href="#landing" id="toTop" title="Back to top">
1020
+ <svg class="br-mark small" viewBox="0 0 32 32" fill="none" aria-hidden="true"><path d="M4 3h10v10H4zM18 3h10v10H18zM4 17h10v12H4z" fill="currentColor"/><path d="M18 17h10v4H18zM18 25h10v4H18z" fill="currentColor" opacity=".62"/></svg>
1021
+ <span class="brand-name">BlackRiver · Gemma 4</span>
1022
+ </a>
1023
+ <div class="status" id="status">
1024
+ <span class="status-dot"></span>
1025
+ <span class="status-text" id="statusText">Not loaded</span>
1026
+ </div>
1027
+ <div class="chat-head-actions">
1028
+ <select id="modelSelect" class="head-btn" style="appearance:auto;background:var(--panel);cursor:pointer;padding:8px 12px;">
1029
+ <option value="onnx-community/gemma-4-E2B-it-ONNX">Gemma 4 E2B (2.3B)</option>
1030
+ <option value="onnx-community/gemma-4-E4B-it-ONNX">Gemma 4 E4B (4B)</option>
1031
+ </select>
1032
+ <button class="head-btn solid" id="headLoadBtn" type="button">Initialize</button>
1033
+ <button class="head-btn" id="kernelsBtn" type="button" hidden>View Kernels</button>
1034
+ <button class="head-btn" id="clearBtn" type="button" disabled>Clear</button>
1035
+ </div>
1036
+ </div>
1037
+ <div class="bar" id="bar"><div></div></div>
1038
+ </header>
1039
+
1040
+ <div class="thread-scroll" id="threadScroll">
1041
+ <div class="thread" id="thread">
1042
+ <div class="welcome" id="welcome">
1043
+ <svg class="welcome-mark" viewBox="0 0 32 32" fill="none" aria-hidden="true"><path d="M4 3h10v10H4zM18 3h10v10H18zM4 17h10v12H4z" fill="currentColor"/><path d="M18 17h10v4H18zM18 25h10v4H18z" fill="currentColor" opacity=".62"/></svg>
1044
+ <h2>What will you <span class="thin">explore?</span></h2>
1045
+ <p>Private on-device intelligence · Image · Audio · Text</p>
1046
+ <div class="seeds">
1047
+ <button class="seed" type="button" disabled>What does this image show?</button>
1048
+ <button class="seed" type="button" disabled>Transcribe this audio</button>
1049
+ <button class="seed" type="button" disabled>Write a haiku about on-device AI</button>
1050
+ </div>
1051
+ </div>
1052
+ </div>
1053
+ </div>
1054
+
1055
+ <footer class="composer-wrap">
1056
+ <div class="composer">
1057
+ <div id="attachments" class="attachments" style="display:none;"></div>
1058
+ <div class="composer-tools">
1059
+ <button class="tool-btn" id="imageBtn" type="button" disabled title="Attach image" aria-label="Attach image">
1060
+ <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round"><rect x="3" y="3" width="18" height="18" rx="3"/><circle cx="8.5" cy="8.5" r="1.5"/><path d="M21 15l-5-5L5 21"/></svg>
1061
+ </button>
1062
+ <button class="tool-btn" id="audioBtn" type="button" disabled title="Record audio" aria-label="Record audio">
1063
+ <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round"><path d="M12 1a3 3 0 0 0-3 3v8a3 3 0 0 0 6 0V4a3 3 0 0 0-3-3z"/><path d="M19 10v2a7 7 0 0 1-14 0v-2"/><line x1="12" y1="19" x2="12" y2="23"/><line x1="8" y1="23" x2="16" y2="23"/></svg>
1064
+ </button>
1065
+ </div>
1066
+ <div class="field">
1067
+ <textarea id="input" rows="1" placeholder="Initialize the model to begin..." disabled></textarea>
1068
+ <button class="icon-button send-button" id="sendBtn" type="button" disabled aria-label="Send message">
1069
+ <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.2" stroke-linecap="round" stroke-linejoin="round"><path d="M5 12h14"/><path d="m13 6 6 6-6 6"/></svg>
1070
+ </button>
1071
+ <button class="icon-button stop-button" id="stopBtn" type="button" aria-label="Stop generation">
1072
+ <svg viewBox="0 0 24 24" fill="currentColor"><rect x="7" y="7" width="10" height="10" rx="1.5"/></svg>
1073
+ </button>
1074
+ </div>
1075
+ <div class="composer-meta">
1076
+ <span id="hint">BlackRiver private runtime · nothing leaves this device</span>
1077
+ <span id="liveStat"></span>
1078
+ </div>
1079
+ </div>
1080
+ </footer>
1081
+ </section>
1082
+
1083
+ <div class="kx" id="kernelsOverlay" hidden>
1084
+ <div class="kx-backdrop" data-close></div>
1085
+ <div class="kx-panel" role="dialog" aria-modal="true" aria-label="Rendered kernels">
1086
+ <div class="kx-head">
1087
+ <div class="kx-title">
1088
+ <h3>Compute kernels</h3>
1089
+ <span class="kx-sub" id="kxSub"></span>
1090
+ </div>
1091
+ <button class="kx-close" id="kxClose" type="button" aria-label="Close" data-close>
1092
+ <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round"><path d="M6 6l12 12M18 6 6 18"/></svg>
1093
+ </button>
1094
+ </div>
1095
+ <div class="kx-body">
1096
+ <div class="kx-side"><div class="kx-list" id="kxList"></div></div>
1097
+ <div class="kx-view">
1098
+ <div class="kx-view-head">
1099
+ <span class="kx-name" id="kxName"></span>
1100
+ <div class="kx-view-actions">
1101
+ <span class="kx-lines" id="kxLines"></span>
1102
+ <button class="kx-copy" id="kxCopy" type="button">Copy</button>
1103
+ </div>
1104
+ </div>
1105
+ <pre class="kx-code"><code id="kxCode"></code></pre>
1106
+ </div>
1107
+ </div>
1108
+ </div>
1109
+ </div>
1110
+
1111
+ <input type="file" id="imageInput" accept="image/*" hidden>
1112
+ <script>
1113
+ // ES modules, WebGPU and microphone access are blocked when this HTML file is
1114
+ // opened directly. Keep the controls informative even though module scripts
1115
+ // cannot start under file://.
1116
+ if (location.protocol === "file:") {
1117
+ addEventListener("DOMContentLoaded", () => {
1118
+ const message = "Ouvrez l’application avec start.bat — localhost est requis pour WebGPU et le microphone.";
1119
+ const status = document.getElementById("status");
1120
+ const statusText = document.getElementById("statusText");
1121
+ const loadButtons = [document.getElementById("loadBtn"), document.getElementById("headLoadBtn")];
1122
+ status?.classList.add("error");
1123
+ if (statusText) statusText.textContent = message;
1124
+ for (const button of loadButtons) {
1125
+ if (!button) continue;
1126
+ button.disabled = false;
1127
+ button.title = message;
1128
+ button.addEventListener("click", () => {
1129
+ status?.classList.add("error");
1130
+ if (statusText) statusText.textContent = message;
1131
+ alert(message);
1132
+ });
1133
+ }
1134
+ });
1135
+ }
1136
+ </script>
1137
+ <script type="module" src="./landing.js"></script>
1138
+ <script>
1139
+ (function () {
1140
+ const fire = () => {
1141
+ document.getElementById("crt-frame")?.classList.add("visible");
1142
+ document.querySelector(".hero-fade")?.classList.add("in");
1143
+ document.querySelectorAll(".anim").forEach((el) => el.classList.add("in"));
1144
+ document.getElementById("scrollCue")?.classList.add("in");
1145
+ };
1146
+ requestAnimationFrame(() => requestAnimationFrame(fire));
1147
+ })();
1148
+ </script>
1149
+
1150
+ <script type="module">
1151
+ import { Gemma4Multimodal } from "./transformers-gemma4.js";
1152
+
1153
+ let marked = null;
1154
+ import("https://esm.sh/marked@17")
1155
+ .then((m) => { marked = m.marked; marked.use({ gfm: true, breaks: true }); })
1156
+ .catch(() => { marked = null; });
1157
+
1158
+ const $ = (id) => document.getElementById(id);
1159
+ const landing = $("landing");
1160
+ const chat = $("chat");
1161
+ const threadScroll = $("threadScroll");
1162
+ const thread = $("thread");
1163
+ const loadBtn = $("loadBtn");
1164
+ const loadBtnLabel = $("loadBtnLabel");
1165
+ const headLoadBtn = $("headLoadBtn");
1166
+ const statusEl = $("status");
1167
+ const statusText = $("statusText");
1168
+ const bar = $("bar");
1169
+ const barFill = bar.firstElementChild;
1170
+ const input = $("input");
1171
+ const sendBtn = $("sendBtn");
1172
+ const stopBtn = $("stopBtn");
1173
+ const clearBtn = $("clearBtn");
1174
+ const hint = $("hint");
1175
+ const liveStat = $("liveStat");
1176
+ const kernelsBtn = $("kernelsBtn");
1177
+ const kernelsOverlay = $("kernelsOverlay");
1178
+ const imageBtn = $("imageBtn");
1179
+ const audioBtn = $("audioBtn");
1180
+ const imageInput = $("imageInput");
1181
+ const attachmentsEl = $("attachments");
1182
+
1183
+ let model = null;
1184
+ let kernels = [];
1185
+ let messages = [];
1186
+ let abortController = null;
1187
+ let isGenerating = false;
1188
+ let isLoading = false;
1189
+ let attachments = [];
1190
+ let targetProgress = 0;
1191
+ let shownProgress = 0;
1192
+ let progressRaf = 0;
1193
+
1194
+ // Model ID comes from the dropdown selector
1195
+
1196
+ if (!navigator.gpu) {
1197
+ const msg = "WebGPU isn't available here. Try a recent Chrome, Edge, or Safari Technology Preview.";
1198
+ loadBtn.disabled = true;
1199
+ headLoadBtn.disabled = true;
1200
+ setStatus("error", msg);
1201
+ }
1202
+
1203
+ const modelSelect = $("modelSelect");
1204
+ const landingModelSelect = $("landingModelSelect");
1205
+
1206
+ modelSelect.addEventListener("change", () => {
1207
+ landingModelSelect.value = modelSelect.value;
1208
+ updateModelCard();
1209
+ });
1210
+ landingModelSelect.addEventListener("change", () => {
1211
+ modelSelect.value = landingModelSelect.value;
1212
+ updateModelCard();
1213
+ });
1214
+
1215
+ function getSelectedModelId() {
1216
+ return modelSelect.value || "onnx-community/gemma-4-E2B-it-ONNX";
1217
+ }
1218
+
1219
+ function updateModelCard() {
1220
+ const id = getSelectedModelId();
1221
+ const isE4B = id.includes("E4B");
1222
+ const stats = document.querySelectorAll(".hero-stats .stat-val");
1223
+ if (stats.length >= 4) {
1224
+ stats[0].textContent = isE4B ? "4B" : "2.3B";
1225
+ stats[2].textContent = isE4B ? "~20" : "~41";
1226
+ }
1227
+ }
1228
+
1229
+ loadBtn.addEventListener("click", loadModel);
1230
+ headLoadBtn.addEventListener("click", loadModel);
1231
+ sendBtn.addEventListener("click", send);
1232
+ stopBtn.addEventListener("click", () => abortController?.abort());
1233
+ clearBtn.addEventListener("click", clearChat);
1234
+ kernelsBtn.addEventListener("click", openKernels);
1235
+ kernelsOverlay.addEventListener("click", (e) => { if (e.target.closest("[data-close]")) closeKernels(); });
1236
+ $("kxList").addEventListener("scroll", updateListFade, { passive: true });
1237
+ $("kxCopy").addEventListener("click", copyKernel);
1238
+ document.addEventListener("keydown", (e) => { if (e.key === "Escape" && !kernelsOverlay.hidden) closeKernels(); });
1239
+ $("toTop").addEventListener("click", (e) => { e.preventDefault(); landing.scrollIntoView({ behavior: "smooth" }); });
1240
+
1241
+ input.addEventListener("input", () => { autoGrow(); refreshSend(); });
1242
+ input.addEventListener("keydown", (e) => {
1243
+ if (e.key === "Enter" && !e.shiftKey) { e.preventDefault(); if (!sendBtn.disabled) send(); }
1244
+ });
1245
+ document.addEventListener("click", (e) => {
1246
+ const seed = e.target.closest(".seed");
1247
+ if (!seed || seed.disabled || !model || isGenerating) return;
1248
+ input.value = seed.textContent;
1249
+ send();
1250
+ });
1251
+
1252
+ // ---- Multimodal attachment handling ----
1253
+ imageBtn.addEventListener("click", () => imageInput.click());
1254
+ imageInput.addEventListener("change", (e) => {
1255
+ for (const file of e.target.files) addImageAttachment(file);
1256
+ imageInput.value = "";
1257
+ });
1258
+
1259
+ // Files can also be pasted or dropped into the composer.
1260
+ document.addEventListener("paste", (e) => {
1261
+ if (!model || isGenerating) return;
1262
+ for (const file of [...(e.clipboardData?.files ?? [])]) {
1263
+ if (file.type.startsWith("image/")) addImageAttachment(file);
1264
+ else if (file.type.startsWith("audio/")) addAudioAttachment(file, file.name);
1265
+ }
1266
+ });
1267
+ const composer = document.querySelector(".composer");
1268
+ composer.addEventListener("dragover", (e) => { e.preventDefault(); });
1269
+ composer.addEventListener("drop", (e) => {
1270
+ e.preventDefault();
1271
+ if (!model || isGenerating) return;
1272
+ for (const file of [...(e.dataTransfer?.files ?? [])]) {
1273
+ if (file.type.startsWith("image/")) addImageAttachment(file);
1274
+ else if (file.type.startsWith("audio/")) addAudioAttachment(file, file.name);
1275
+ }
1276
+ });
1277
+
1278
+ let mediaRecorder = null;
1279
+ let audioChunks = [];
1280
+ let recordingStream = null;
1281
+ let recordingTimer = 0;
1282
+ audioBtn.addEventListener("click", async () => {
1283
+ if (mediaRecorder && mediaRecorder.state === "recording") {
1284
+ mediaRecorder.stop();
1285
+ audioBtn.classList.remove("recording");
1286
+ clearTimeout(recordingTimer);
1287
+ return;
1288
+ }
1289
+ try {
1290
+ recordingStream = await navigator.mediaDevices.getUserMedia({ audio: true });
1291
+ audioChunks = [];
1292
+ const mimeType = ["audio/webm;codecs=opus", "audio/webm", "audio/mp4"]
1293
+ .find((type) => MediaRecorder.isTypeSupported?.(type));
1294
+ mediaRecorder = new MediaRecorder(recordingStream, mimeType ? { mimeType } : undefined);
1295
+ mediaRecorder.ondataavailable = (e) => { if (e.data.size > 0) audioChunks.push(e.data); };
1296
+ mediaRecorder.onstop = async () => {
1297
+ clearTimeout(recordingTimer);
1298
+ audioBtn.classList.remove("recording");
1299
+ const blob = new Blob(audioChunks, { type: mediaRecorder.mimeType || "audio/webm" });
1300
+ await addAudioAttachment(blob);
1301
+ recordingStream?.getTracks().forEach(t => t.stop());
1302
+ recordingStream = null;
1303
+ };
1304
+ mediaRecorder.start();
1305
+ audioBtn.classList.add("recording");
1306
+ recordingTimer = setTimeout(() => {
1307
+ if (mediaRecorder?.state === "recording") mediaRecorder.stop();
1308
+ }, 30_000);
1309
+ } catch (err) {
1310
+ console.error("Audio recording failed:", err);
1311
+ recordingStream?.getTracks().forEach(t => t.stop());
1312
+ recordingStream = null;
1313
+ audioBtn.classList.remove("recording");
1314
+ setStatus("error", location.protocol === "file:"
1315
+ ? "Microphone requires localhost or HTTPS"
1316
+ : "Microphone access denied or unavailable");
1317
+ }
1318
+ });
1319
+
1320
+ function addImageAttachment(file) {
1321
+ if (!file?.type?.startsWith("image/")) return;
1322
+ const url = URL.createObjectURL(file);
1323
+ const id = crypto.randomUUID();
1324
+ attachments.push({ id, type: "image", url, file, name: file.name });
1325
+ renderAttachments();
1326
+ refreshSend();
1327
+ }
1328
+
1329
+ async function addAudioAttachment(blob, suppliedName = "") {
1330
+ let decoded;
1331
+ try {
1332
+ decoded = await decodeAudioToPcm(blob);
1333
+ } catch (error) {
1334
+ console.error("Audio decoding failed:", error);
1335
+ setStatus("error", "Audio illisible — essayez un enregistrement plus long ou un fichier WAV.");
1336
+ return;
1337
+ }
1338
+ if (decoded.duration < 0.2 || decoded.pcm.length < 3200) {
1339
+ setStatus("error", "Enregistrement trop court — parlez pendant au moins une seconde.");
1340
+ return;
1341
+ }
1342
+ const url = URL.createObjectURL(blob);
1343
+ const id = crypto.randomUUID();
1344
+ const extension = blob.type.includes("mp4") ? "m4a" : blob.type.includes("wav") ? "wav" : "webm";
1345
+ attachments.push({
1346
+ id, type: "audio", url, blob,
1347
+ pcm: decoded.pcm,
1348
+ duration: decoded.duration,
1349
+ name: suppliedName || `recording-${Date.now()}.${extension}`,
1350
+ });
1351
+ renderAttachments();
1352
+ refreshSend();
1353
+ }
1354
+
1355
+ async function decodeAudioToPcm(blob) {
1356
+ const AudioContextClass = window.AudioContext || window.webkitAudioContext;
1357
+ if (!AudioContextClass) throw new Error("Web Audio is unavailable");
1358
+ const context = new AudioContextClass({ sampleRate: 16000 });
1359
+ try {
1360
+ const buffer = await context.decodeAudioData(await blob.arrayBuffer());
1361
+ const length = buffer.length;
1362
+ const mono = new Float32Array(length);
1363
+ for (let channel = 0; channel < buffer.numberOfChannels; channel++) {
1364
+ const data = buffer.getChannelData(channel);
1365
+ for (let i = 0; i < length; i++) mono[i] += data[i] / buffer.numberOfChannels;
1366
+ }
1367
+ const pcm = buffer.sampleRate === 16000 ? mono : resampleLinear(mono, buffer.sampleRate, 16000);
1368
+ return { pcm, duration: buffer.duration };
1369
+ } finally {
1370
+ await context.close();
1371
+ }
1372
+ }
1373
+
1374
+ function resampleLinear(inputSamples, fromRate, toRate) {
1375
+ const output = new Float32Array(Math.max(1, Math.round(inputSamples.length * toRate / fromRate)));
1376
+ const ratio = fromRate / toRate;
1377
+ for (let i = 0; i < output.length; i++) {
1378
+ const position = i * ratio;
1379
+ const left = Math.floor(position);
1380
+ const right = Math.min(left + 1, inputSamples.length - 1);
1381
+ const mix = position - left;
1382
+ output[i] = inputSamples[left] * (1 - mix) + inputSamples[right] * mix;
1383
+ }
1384
+ return output;
1385
+ }
1386
+
1387
+ function renderAttachments() {
1388
+ attachmentsEl.innerHTML = "";
1389
+ if (attachments.length === 0) { attachmentsEl.style.display = "none"; return; }
1390
+ attachmentsEl.style.display = "flex";
1391
+ for (const att of attachments) {
1392
+ const el = document.createElement("div");
1393
+ el.className = `attachment ${att.type}`;
1394
+ if (att.type === "image") {
1395
+ el.innerHTML = `<img src="${att.url}"><span class="att-name">${escapeHtml(att.name)}</span><span class="att-type">IMG</span><button class="att-remove" data-id="${att.id}">×</button>`;
1396
+ } else {
1397
+ const duration = finiteNumber(att.duration) ? ` · ${att.duration.toFixed(1)}s` : "";
1398
+ el.innerHTML = `<span class="att-icon">🎙</span><span class="att-name">${escapeHtml(att.name)}</span><span class="att-type">AUDIO${duration}</span><button class="att-remove" data-id="${att.id}">×</button>`;
1399
+ }
1400
+ el.querySelector(".att-remove").addEventListener("click", () => {
1401
+ attachments = attachments.filter(a => a.id !== att.id);
1402
+ URL.revokeObjectURL(att.url);
1403
+ renderAttachments();
1404
+ refreshSend();
1405
+ });
1406
+ attachmentsEl.appendChild(el);
1407
+ }
1408
+ }
1409
+
1410
+ function setStatus(state, text) {
1411
+ statusEl.className = "status" + (state ? " " + state : "");
1412
+ if (text !== undefined) statusText.innerHTML = text;
1413
+ }
1414
+
1415
+ async function loadModel() {
1416
+ if (model || isLoading) return;
1417
+ isLoading = true;
1418
+ loadBtn.disabled = true;
1419
+ headLoadBtn.disabled = true;
1420
+ modelSelect.disabled = true;
1421
+ landingModelSelect.disabled = true;
1422
+ loadBtnLabel.textContent = "Loading…";
1423
+ bar.classList.remove("done");
1424
+ setProgressImmediate(0.02);
1425
+ setStatus("loading", "Requesting WebGPU device…");
1426
+ chat.scrollIntoView({ behavior: "smooth" });
1427
+
1428
+ const started = performance.now();
1429
+ try {
1430
+ const selectedModelId = getSelectedModelId();
1431
+ model = await Gemma4Multimodal.load(selectedModelId, { onProgress: updateLoadProgress });
1432
+
1433
+ const seconds = ((performance.now() - started) / 1000).toFixed(1);
1434
+ setStatus("ready", `Ready in <strong>${seconds}s</strong> · multimodal · on-device`);
1435
+ setProgressImmediate(1);
1436
+ bar.classList.add("done");
1437
+ loadBtnLabel.textContent = "Model loaded";
1438
+ headLoadBtn.style.display = "none";
1439
+ enableChat();
1440
+ } catch (error) {
1441
+ console.error(error);
1442
+ setStatus("error", `Failed to load: ${escapeHtml(String(error?.message ?? error))}`);
1443
+ bar.classList.add("done");
1444
+ loadBtn.disabled = false;
1445
+ headLoadBtn.disabled = false;
1446
+ modelSelect.disabled = false;
1447
+ landingModelSelect.disabled = false;
1448
+ loadBtnLabel.textContent = "Initialize model";
1449
+ isLoading = false;
1450
+ }
1451
+ }
1452
+
1453
+ function labelFor(status) {
1454
+ return {
1455
+ init: "Requesting WebGPU device…",
1456
+ tokenizer: "Loading tokenizer…",
1457
+ weights: "Downloading weights…",
1458
+ encoder: "Loading vision/audio encoder…",
1459
+ ready: "Ready.",
1460
+ }[status] ?? status;
1461
+ }
1462
+
1463
+ function updateLoadProgress(event) {
1464
+ if (event.status !== "weights") {
1465
+ setStatus("loading", labelFor(event.status));
1466
+ setPhaseProgress(event.status, event.fraction);
1467
+ return;
1468
+ }
1469
+ const kind = event.kind ?? inferProgressKind(event);
1470
+ const fraction = finiteNumber(event.fraction) ? clamp(event.fraction, 0, 1) : null;
1471
+ if (kind !== "tensors") setPhaseProgress("weights", fraction);
1472
+ setStatus("loading", formatWeightProgress(event, fraction));
1473
+ }
1474
+
1475
+ function setPhaseProgress(status, frac) {
1476
+ const [lo, hi] = status === "weights"
1477
+ ? [0.04, 1.0]
1478
+ : ({ init: [0, 0.02], tokenizer: [0.02, 0.04], encoder: [0.04, 0.06], ready: [1, 1] }[status] ?? [0, 1]);
1479
+ const f = finiteNumber(frac) ? clamp(frac, 0, 1) : 0;
1480
+ setProgressFraction(lo + (hi - lo) * f);
1481
+ }
1482
+
1483
+ function formatWeightProgress(event, fraction) {
1484
+ const kind = event.kind ?? inferProgressKind(event);
1485
+ const pct = fraction === null ? "" : ` (${Math.round(fraction * 100)}%)`;
1486
+ const loaded = finiteNumber(event.loaded) ? event.loaded : null;
1487
+ const total = finiteNumber(event.total) ? event.total : null;
1488
+ if (kind === "bytes") {
1489
+ const verb = event.fromCache ? "Loading cached weights" : "Downloading weights";
1490
+ if (loaded !== null && total !== null) return `${verb}: ${formatBytes(loaded)} / ${formatBytes(total)}${pct}`;
1491
+ if (total !== null) return `${verb}: ${formatBytes(total)} total`;
1492
+ return `${escapeHtml(event.message || verb)}…`;
1493
+ }
1494
+ if (loaded !== null && total !== null) {
1495
+ const label = event.message ? ` (${escapeHtml(event.message)})` : "";
1496
+ return `Preparing GPU weights: ${formatInteger(loaded)} / ${formatInteger(total)} tensors${pct}${label}`;
1497
+ }
1498
+ return event.message ? `Preparing GPU weights: ${escapeHtml(event.message)}` : "Preparing GPU weights…";
1499
+ }
1500
+
1501
+ function inferProgressKind(event) {
1502
+ if (event.kind === "bytes" || event.kind === "tensors") return event.kind;
1503
+ if (finiteNumber(event.total) && event.total > 1_000_000) return "bytes";
1504
+ return "tensors";
1505
+ }
1506
+
1507
+ function setProgressFraction(value) {
1508
+ if (!finiteNumber(value)) return;
1509
+ targetProgress = Math.max(clamp(value, 0, 1), targetProgress);
1510
+ if (!progressRaf) progressRaf = requestAnimationFrame(stepProgressBar);
1511
+ }
1512
+
1513
+ function stepProgressBar() {
1514
+ const gap = targetProgress - shownProgress;
1515
+ shownProgress += gap < 0.0015 ? gap : gap * 0.3;
1516
+ barFill.style.width = `${(shownProgress * 100).toFixed(2)}%`;
1517
+ progressRaf = shownProgress < targetProgress ? requestAnimationFrame(stepProgressBar) : 0;
1518
+ }
1519
+
1520
+ function setProgressImmediate(value) {
1521
+ if (progressRaf) { cancelAnimationFrame(progressRaf); progressRaf = 0; }
1522
+ targetProgress = shownProgress = clamp(value, 0, 1);
1523
+ barFill.style.width = `${(shownProgress * 100).toFixed(2)}%`;
1524
+ }
1525
+
1526
+ function enableChat() {
1527
+ isLoading = false;
1528
+ input.disabled = false;
1529
+ input.placeholder = "Message Gemma 4 · image, audio or text…";
1530
+ clearBtn.disabled = false;
1531
+ kernelsBtn.hidden = true;
1532
+ imageBtn.disabled = false;
1533
+ audioBtn.disabled = false;
1534
+ setSeedButtonsEnabled(true);
1535
+ refreshSend();
1536
+ input.focus();
1537
+ }
1538
+
1539
+ function setSeedButtonsEnabled(enabled) {
1540
+ document.querySelectorAll(".seed").forEach((s) => { s.disabled = !enabled; });
1541
+ }
1542
+
1543
+ function autoGrow() {
1544
+ input.style.height = "auto";
1545
+ input.style.height = Math.min(input.scrollHeight, 180) + "px";
1546
+ }
1547
+
1548
+ function refreshSend() {
1549
+ sendBtn.disabled = input.value.trim().length === 0 && attachments.length === 0;
1550
+ }
1551
+
1552
+ input.addEventListener("input", refreshSend);
1553
+ attachmentsEl.addEventListener("change", refreshSend);
1554
+
1555
+ async function send() {
1556
+ if (!model || isGenerating || (input.value.trim().length === 0 && attachments.length === 0)) return;
1557
+ const text = input.value.trim();
1558
+ const currentAttachments = [...attachments];
1559
+ attachments = [];
1560
+ renderAttachments();
1561
+ input.value = "";
1562
+ autoGrow();
1563
+ refreshSend();
1564
+
1565
+ const userMsg = { role: "user", content: text, attachments: currentAttachments };
1566
+ messages.push(userMsg);
1567
+
1568
+ const userEl = renderMessage("user", text, currentAttachments);
1569
+ thread.appendChild(userEl);
1570
+ scrollToBottom();
1571
+
1572
+ const assistantEl = renderMessage("assistant", "");
1573
+ const bubble = assistantEl.querySelector(".bubble");
1574
+ const thinking = document.createElement("div");
1575
+ thinking.className = "thinking";
1576
+ thinking.innerHTML = "<span></span><span></span><span></span>";
1577
+ bubble.appendChild(thinking);
1578
+ thread.appendChild(assistantEl);
1579
+ scrollToBottom();
1580
+
1581
+ abortController = new AbortController();
1582
+ isGenerating = true;
1583
+ sendBtn.style.display = "none";
1584
+ stopBtn.style.display = "grid";
1585
+
1586
+ try {
1587
+ let fullText = "";
1588
+ const stream = model.generate(messages, {
1589
+ maxNewTokens: 1024,
1590
+ signal: abortController.signal,
1591
+ });
1592
+
1593
+ thinking.remove();
1594
+ let lastLen = 0;
1595
+ for await (const chunk of stream) {
1596
+ fullText = chunk.text;
1597
+ bubble.innerHTML = renderMarkdown(fullText);
1598
+ if (bubble.innerHTML.length !== lastLen) {
1599
+ scrollToBottom();
1600
+ lastLen = bubble.innerHTML.length;
1601
+ }
1602
+ if (liveStat) liveStat.textContent = `${fullText.length} chars`;
1603
+ }
1604
+
1605
+ messages.push({ role: "assistant", content: fullText });
1606
+ const meta = document.createElement("div");
1607
+ meta.className = "meta";
1608
+ meta.textContent = `${fullText.length} chars`;
1609
+ assistantEl.appendChild(meta);
1610
+ } catch (err) {
1611
+ if (err?.name !== "AbortError") {
1612
+ thinking.remove();
1613
+ bubble.textContent = `Error: ${err?.message ?? err}`;
1614
+ console.error(err);
1615
+ }
1616
+ } finally {
1617
+ isGenerating = false;
1618
+ sendBtn.style.display = "grid";
1619
+ stopBtn.style.display = "none";
1620
+ }
1621
+ }
1622
+
1623
+ function renderMessage(role, text, atts = []) {
1624
+ const el = document.createElement("div");
1625
+ el.className = `msg ${role}`;
1626
+ const roleEl = document.createElement("div");
1627
+ roleEl.className = "role";
1628
+ roleEl.textContent = role;
1629
+ el.appendChild(roleEl);
1630
+ const bubble = document.createElement("div");
1631
+ bubble.className = `bubble ${role}`;
1632
+ if (role === "user" && atts.length > 0) {
1633
+ const attContainer = document.createElement("div");
1634
+ attContainer.style.cssText = "display:flex;flex-wrap:wrap;gap:6px;margin-bottom:8px;";
1635
+ for (const att of atts) {
1636
+ if (att.type === "image") {
1637
+ const img = document.createElement("img");
1638
+ img.src = att.url;
1639
+ img.style.cssText = "max-width:200px;max-height:200px;border-radius:8px;";
1640
+ attContainer.appendChild(img);
1641
+ } else {
1642
+ const badge = document.createElement("span");
1643
+ badge.textContent = "🎙 Audio";
1644
+ badge.style.cssText = "font-family:var(--mono);font-size:11px;padding:4px 8px;background:var(--panel);border:1px solid var(--line);border-radius:6px;";
1645
+ attContainer.appendChild(badge);
1646
+ }
1647
+ }
1648
+ bubble.appendChild(attContainer);
1649
+ }
1650
+ if (text) bubble.appendChild(document.createTextNode(text));
1651
+ el.appendChild(bubble);
1652
+ return el;
1653
+ }
1654
+
1655
+ function clearChat() {
1656
+ for (const message of messages) {
1657
+ for (const att of message.attachments ?? []) URL.revokeObjectURL(att.url);
1658
+ }
1659
+ messages = [];
1660
+ thread.innerHTML = "";
1661
+ const welcome = document.createElement("div");
1662
+ welcome.className = "welcome";
1663
+ welcome.id = "welcome";
1664
+ welcome.innerHTML = `
1665
+ <svg class="welcome-mark" viewBox="0 0 32 32" fill="none" aria-hidden="true"><path d="M4 3h10v10H4zM18 3h10v10H18zM4 17h10v12H4z" fill="currentColor"/><path d="M18 17h10v4H18zM18 25h10v4H18z" fill="currentColor" opacity=".62"/></svg>
1666
+ <h2>What will you <span class="thin">explore?</span></h2>
1667
+ <p>Private on-device intelligence · Image · Audio · Text</p>
1668
+ <div class="seeds">
1669
+ <button class="seed" type="button">What does this image show?</button>
1670
+ <button class="seed" type="button">Transcribe this audio</button>
1671
+ <button class="seed" type="button">Write a haiku about on-device AI</button>
1672
+ </div>
1673
+ `;
1674
+ thread.appendChild(welcome);
1675
+ setSeedButtonsEnabled(!!model);
1676
+ model?.reset?.();
1677
+ }
1678
+
1679
+ function renderMarkdown(text) {
1680
+ if (marked) return marked.parse(text);
1681
+ return escapeHtml(text).replace(/\n/g, "<br>");
1682
+ }
1683
+
1684
+ function scrollToBottom() {
1685
+ threadScroll.scrollTo({ top: threadScroll.scrollHeight, behavior: "smooth" });
1686
+ }
1687
+
1688
+ // ---- Kernels viewer ----
1689
+ function openKernels() {
1690
+ if (!model) return;
1691
+ kernels = model.runtime.getRenderedShaders?.() ?? [];
1692
+ const list = $("kxList");
1693
+ list.replaceChildren();
1694
+ for (let i = 0; i < kernels.length; i++) {
1695
+ const item = document.createElement("button");
1696
+ item.className = "kx-item";
1697
+ item.textContent = kernels[i].name;
1698
+ item.addEventListener("click", () => selectKernel(i));
1699
+ list.appendChild(item);
1700
+ }
1701
+ $("kxSub").textContent = `${kernels.length} rendered WGSL shaders on ${model.deviceInfo?.vendor ?? "unknown"} ${model.deviceInfo?.architecture ?? ""}`.trim();
1702
+ kernelsOverlay.hidden = false;
1703
+ document.body.classList.add("kx-locked");
1704
+ updateListFade();
1705
+ if (kernels.length > 0) selectKernel(0);
1706
+ }
1707
+
1708
+ function selectKernel(index) {
1709
+ const k = kernels[index];
1710
+ if (!k) return;
1711
+ document.querySelectorAll(".kx-item").forEach((el, i) => el.classList.toggle("active", i === index));
1712
+ $("kxName").textContent = k.name;
1713
+ $("kxLines").textContent = `${k.source.split("\n").length} lines`;
1714
+ $("kxCode").innerHTML = highlightWgsl(k.source);
1715
+ kxCopySource = k.source;
1716
+ updateListFade();
1717
+ }
1718
+
1719
+ function updateListFade() {
1720
+ const list = $("kxList");
1721
+ const side = list.parentElement;
1722
+ side.classList.toggle("at-end", list.scrollTop + list.clientHeight >= list.scrollHeight - 2);
1723
+ }
1724
+
1725
+ function closeKernels() {
1726
+ kernelsOverlay.hidden = true;
1727
+ document.body.classList.remove("kx-locked");
1728
+ }
1729
+
1730
+ function copyKernel() {
1731
+ navigator.clipboard.writeText(kxCopySource);
1732
+ const btn = $("kxCopy");
1733
+ const orig = btn.textContent;
1734
+ btn.textContent = "Copied!";
1735
+ setTimeout(() => { btn.textContent = orig; }, 1500);
1736
+ }
1737
+
1738
+ let kxCopySource = "";
1739
+
1740
+ function highlightWgsl(source) {
1741
+ let s = escapeHtml(source);
1742
+ s = s.replace(/\/\/[^\n]*/g, '<span class="k-cm">$&</span>');
1743
+ s = s.replace(/\b(fn|var|let|const|for|if|else|while|loop|break|continue|return|struct|enable|@compute|@workgroup_size|@group|@binding|@builtin|@stage)\b/g, '<span class="k-kw">$&</span>');
1744
+ s = s.replace(/\b(f32|u32|i32|bool|vec2|vec3|vec4|mat4x4|mat3x3|array|ptr|void)\b/g, '<span class="k-ty">$&</span>');
1745
+ s = s.replace(/@[\w]+/g, '<span class="k-at">$&</span>');
1746
+ s = s.replace(/\b\d+\.?\d*[fu]?\b/g, '<span class="k-nu">$&</span>');
1747
+ return `<code>${s}</code>`;
1748
+ }
1749
+
1750
+ // ---- Helpers ----
1751
+ function escapeHtml(s) { return String(s).replace(/[&<>"']/g, c => ({ "&": "&amp;", "<": "&lt;", ">": "&gt;", '"': "&quot;", "'": "&#39;" }[c])); }
1752
+ function clamp(v, lo, hi) { return Math.min(Math.max(v, lo), hi); }
1753
+ function finiteNumber(v) { return typeof v === "number" && Number.isFinite(v); }
1754
+ function formatBytes(n) { if (n < 1024) return `${n} B`; if (n < 1048576) return `${(n/1024).toFixed(1)} KB`; if (n < 1073741824) return `${(n/1048576).toFixed(1)} MB`; return `${(n/1073741824).toFixed(2)} GB`; }
1755
+ function formatInteger(n) { return Math.floor(n).toLocaleString(); }
1756
+ </script>
1757
+ </body>
1758
+ </html>
landing.js ADDED
@@ -0,0 +1,717 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ import * as THREE from 'three';
2
+ import { OrbitControls } from 'three/examples/jsm/controls/OrbitControls.js';
3
+ import { EffectComposer } from 'three/examples/jsm/postprocessing/EffectComposer.js';
4
+ import { RenderPass } from 'three/examples/jsm/postprocessing/RenderPass.js';
5
+ import { ShaderPass } from 'three/examples/jsm/postprocessing/ShaderPass.js';
6
+ import { OutputPass } from 'three/examples/jsm/postprocessing/OutputPass.js';
7
+
8
+ // ============ DEVICE DETECTION ============
9
+ const isMobile = /Android|iPhone|iPad|iPod|webOS|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent)
10
+ || (navigator.maxTouchPoints > 1 && window.innerWidth < 1024);
11
+ const gpuTier = (() => {
12
+ const gl = document.createElement('canvas').getContext('webgl');
13
+ if (!gl) return 'low';
14
+ const ext = gl.getExtension('WEBGL_debug_renderer_info');
15
+ const gpu = ext ? gl.getParameter(ext.UNMASKED_RENDERER_WEBGL).toLowerCase() : '';
16
+ // Apple GPU = Apple Silicon (M1/M2/M3/M4) — these are high-tier
17
+ if (/apple gpu|apple m/.test(gpu)) return 'high';
18
+ // Low-tier: old Intel integrated, software renderers, old mobile chips
19
+ if (/swiftshader|llvmpipe|mali-4|adreno 3/.test(gpu)) return 'low';
20
+ if (/intel(?!.*(iris|uhd|arc))/.test(gpu)) return 'low';
21
+ // Mid-tier: mid-range mobile, Intel Iris/UHD, older discrete
22
+ if (/mali-g[567]|adreno [45]|intel (iris|uhd)|geforce (mx|gt)|radeon (rx )?(5[0-4]|vega 8)/.test(gpu)) return 'mid';
23
+ // Everything else (RTX, RX 6000+, Arc, etc.) = high
24
+ return 'high';
25
+ })();
26
+
27
+ const qualityPresets = {
28
+ low: { pixelRatio: 1.0, marchSteps: 48, aoSteps: 2, dotSize: 6.0, dotGap: 3.0, scanlines: 0.55, bloomEnabled: false },
29
+ mid: { pixelRatio: 1.25, marchSteps: 64, aoSteps: 3, dotSize: 5.0, dotGap: 2.5, scanlines: 0.75, bloomEnabled: true },
30
+ high: { pixelRatio: 1.5, marchSteps: 80, aoSteps: 3, dotSize: 5.0, dotGap: 2.5, scanlines: 0.75, bloomEnabled: true },
31
+ };
32
+ let currentTier = isMobile ? 'low' : gpuTier;
33
+ let quality = { ...qualityPresets[currentTier] };
34
+
35
+ // ============ SETTINGS ============
36
+ const settings = {
37
+ dither: { enabled: true, dotSize: quality.dotSize, dotGap: quality.dotGap, brightness: 0.85, contrast: 0.60, threshold: 0.03, dotColor: [1.0, 1.0, 1.0], bgColor: [0.00784, 0.00784, 0.01176] },
38
+ crosshatch: { enabled: false, intensity: 0.95, angle: 0.4363 },
39
+ bloom: { enabled: quality.bloomEnabled, intensity: 0.55, size: 1.50 },
40
+ crt: { enabled: true, curvature: 0.0, scanlines: quality.scanlines, vignette: 2.00, chroma: 0.0 },
41
+ scene: { gooeyness: 1.20, speed: 0.85 }
42
+ };
43
+
44
+ // ============ MOUSE TRACKING ============
45
+ const mouse = new THREE.Vector2(0, 0);
46
+ let mouseInScene = false;
47
+ let mousePressed = false;
48
+ let mouseSphereRadius = 0.0;
49
+ const mouseSphereTargetRadius = 0.55;
50
+ const mouseSphereClickRadius = 0.95;
51
+ const mouseWorld = new THREE.Vector3(0, 0, 0);
52
+ const mouseWorldTarget = new THREE.Vector3(0, 0, 0);
53
+ const mouseDamping = 0.15;
54
+
55
+ // ============ THREE.JS SETUP ============
56
+ const scene = new THREE.Scene();
57
+ scene.background = new THREE.Color(0x020203);
58
+
59
+ const crtFrame = document.getElementById('crt-frame');
60
+ const getSize = () => {
61
+ return { width: window.innerWidth, height: window.innerHeight };
62
+ };
63
+ let size = getSize();
64
+
65
+ const camera = new THREE.PerspectiveCamera(60, size.width / size.height, 0.1, 100);
66
+ camera.position.set(0, 0, 5);
67
+ const renderer = new THREE.WebGLRenderer({ antialias: false, powerPreference: 'high-performance' });
68
+ renderer.setSize(size.width, size.height);
69
+ renderer.setPixelRatio(Math.min(window.devicePixelRatio, quality.pixelRatio));
70
+ crtFrame.appendChild(renderer.domElement);
71
+
72
+ const controls = new OrbitControls(camera, renderer.domElement);
73
+ controls.enableDamping = true;
74
+ controls.dampingFactor = 0.05;
75
+ controls.enableZoom = false;
76
+ controls.enablePan = false;
77
+ controls.enableRotate = false;
78
+ controls.enabled = false; // prevent OrbitControls from capturing scroll/pointer events
79
+
80
+ // ============ INPUT EVENTS ============
81
+ let pageVisible = true;
82
+ // Render only while the hero canvas is actually on screen. When the chat view scrolls into
83
+ // place the background pauses itself (below), freeing the GPU for the WebGPU model so decode
84
+ // throughput isn't dragged down by the WebGL background.
85
+ let heroOnScreen = true;
86
+ const onPointerMove = (e) => {
87
+ mouseInScene = true;
88
+ const x = e.clientX ?? (e.touches && e.touches[0] ? e.touches[0].clientX : 0);
89
+ const y = e.clientY ?? (e.touches && e.touches[0] ? e.touches[0].clientY : 0);
90
+ mouse.x = (x / window.innerWidth) * 2 - 1;
91
+ mouse.y = -(y / window.innerHeight) * 2 + 1;
92
+ };
93
+ document.addEventListener('mousemove', onPointerMove, { passive: true });
94
+ document.addEventListener('touchmove', onPointerMove, { passive: true });
95
+ document.addEventListener('mouseenter', () => { mouseInScene = true; }, { passive: true });
96
+ document.addEventListener('mouseleave', () => { mouseInScene = false; }, { passive: true });
97
+ document.addEventListener('touchstart', (e) => { mouseInScene = true; mousePressed = true; onPointerMove(e); }, { passive: true });
98
+ document.addEventListener('touchend', () => { mousePressed = false; mouseInScene = false; }, { passive: true });
99
+ document.addEventListener('visibilitychange', () => {
100
+ pageVisible = !document.hidden;
101
+ if (document.hidden) mouseInScene = false;
102
+ });
103
+ // Pause the WebGL background as soon as the chat view dominates the screen, so it never competes
104
+ // with the WebGPU model for the GPU. Resume when scrolling back to the landing. Falls back to the
105
+ // hero canvas's own visibility if there is no #chat section on the page.
106
+ const chatSection = document.getElementById('chat');
107
+ if (chatSection) {
108
+ new IntersectionObserver(([entry]) => { heroOnScreen = entry.intersectionRatio < 0.4; }, { threshold: [0, 0.4, 1] }).observe(chatSection);
109
+ } else {
110
+ new IntersectionObserver(([entry]) => { heroOnScreen = entry.isIntersecting; }, { threshold: 0 }).observe(crtFrame);
111
+ }
112
+ document.addEventListener('mousedown', () => { mousePressed = true; }, { passive: true });
113
+ document.addEventListener('mouseup', () => { mousePressed = false; }, { passive: true });
114
+
115
+ // ============ RAYMARCHING QUAD ============
116
+ const quadGeometry = new THREE.PlaneGeometry(2, 2);
117
+ const quadMaterial = new THREE.ShaderMaterial({
118
+ uniforms: {
119
+ uTime: { value: 0 },
120
+ uResolution: { value: new THREE.Vector2(size.width, size.height) },
121
+ uCameraPos: { value: camera.position.clone() },
122
+ uCameraTarget: { value: new THREE.Vector3(0, 0, 0) },
123
+ uPixelRatio: { value: Math.min(window.devicePixelRatio, 1.5) },
124
+ uGooeyness: { value: settings.scene.gooeyness },
125
+ uSpeed: { value: settings.scene.speed },
126
+ uMouseSpherePos: { value: new THREE.Vector3(0, 0, 0) },
127
+ uMouseSphereRadius: { value: 0.0 },
128
+ },
129
+ vertexShader: `
130
+ varying vec2 vUv;
131
+ void main() {
132
+ vUv = uv;
133
+ gl_Position = vec4(position, 1.0);
134
+ }
135
+ `,
136
+ fragmentShader: `
137
+ precision highp float;
138
+ #define MARCH_STEPS ${quality.marchSteps}
139
+ #define AO_STEPS ${quality.aoSteps}
140
+ uniform float uTime;
141
+ uniform vec2 uResolution;
142
+ uniform vec3 uCameraPos;
143
+ uniform vec3 uCameraTarget;
144
+ uniform float uPixelRatio;
145
+ uniform float uGooeyness;
146
+ uniform float uSpeed;
147
+ uniform vec3 uMouseSpherePos;
148
+ uniform float uMouseSphereRadius;
149
+
150
+ varying vec2 vUv;
151
+
152
+ float smin(float a, float b, float k) {
153
+ float h = clamp(0.5 + 0.5 * (b - a) / k, 0.0, 1.0);
154
+ return mix(b, a, h) - k * h * (1.0 - h);
155
+ }
156
+
157
+ float sdSphere(vec3 p, vec3 center, float radius) {
158
+ return length(p - center) - radius;
159
+ }
160
+
161
+ float sceneCompound(vec3 p, float t, float k) {
162
+ // Two large primary blobs
163
+ float angle1 = t * 0.5;
164
+ float angle2 = t * 0.5 + 3.14159;
165
+ vec3 c1 = vec3(
166
+ cos(angle1) * 2.4 + sin(t * 0.25) * 0.3,
167
+ sin(angle1 * 0.6) * 0.8 + cos(t * 0.4) * 0.2,
168
+ sin(angle1 * 0.35) * 0.6
169
+ );
170
+ vec3 c2 = vec3(
171
+ cos(angle2) * 2.4 + sin(t * 0.3) * 0.3,
172
+ sin(angle2 * 0.6) * 0.8 - cos(t * 0.35) * 0.2,
173
+ sin(angle2 * 0.35) * 0.6
174
+ );
175
+ float s1 = sdSphere(p, c1, 1.2 + 0.07 * sin(t * 2.5));
176
+ float s2 = sdSphere(p, c2, 1.05 + 0.07 * cos(t * 2.0));
177
+
178
+ // Medium satellites
179
+ vec3 c3 = c1 + vec3(sin(t * 1.8) * 0.9, cos(t * 2.2) * 0.9, sin(t * 1.5) * 0.6);
180
+ vec3 c4 = c2 + vec3(-cos(t * 1.5) * 0.8, sin(t * 1.9) * 0.8, -cos(t * 1.7) * 0.5);
181
+ float s3 = sdSphere(p, c3, 0.55);
182
+ float s4 = sdSphere(p, c4, 0.5);
183
+
184
+ // Free-floating blobs
185
+ vec3 c5 = vec3(sin(t * 0.7) * 3.0, cos(t * 0.55) * 1.2, cos(t * 0.45) * 0.7);
186
+ vec3 c6 = vec3(-cos(t * 0.65) * 2.8, sin(t * 0.75) * 1.0, sin(t * 0.5) * 0.8);
187
+ float s5 = sdSphere(p, c5, 0.6);
188
+ float s6 = sdSphere(p, c6, 0.55);
189
+
190
+ float d = smin(s1, s2, k);
191
+ d = smin(d, s3, k * 0.7);
192
+ d = smin(d, s4, k * 0.7);
193
+ d = smin(d, s5, k * 0.8);
194
+ d = smin(d, s6, k * 0.8);
195
+ return d;
196
+ }
197
+
198
+ float sceneSDF(vec3 p) {
199
+ float t = uTime * uSpeed;
200
+ float k = uGooeyness;
201
+ float d = sceneCompound(p, t, k);
202
+ if (uMouseSphereRadius > 0.001) {
203
+ float ms = sdSphere(p, uMouseSpherePos, uMouseSphereRadius);
204
+ d = smin(d, ms, k * 0.8);
205
+ }
206
+ return d;
207
+ }
208
+
209
+ vec3 calcNormal(vec3 p) {
210
+ const float eps = 0.001;
211
+ vec2 h = vec2(eps, 0.0);
212
+ return normalize(vec3(
213
+ sceneSDF(p + h.xyy) - sceneSDF(p - h.xyy),
214
+ sceneSDF(p + h.yxy) - sceneSDF(p - h.yxy),
215
+ sceneSDF(p + h.yyx) - sceneSDF(p - h.yyx)
216
+ ));
217
+ }
218
+
219
+ float calcAO(vec3 pos, vec3 nor) {
220
+ float occ = 0.0;
221
+ float sca = 1.0;
222
+ for (int i = 0; i < AO_STEPS; i++) {
223
+ float h = 0.02 + 0.15 * float(i);
224
+ float d = sceneSDF(pos + h * nor);
225
+ occ += (h - d) * sca;
226
+ sca *= 0.9;
227
+ }
228
+ return clamp(1.0 - 3.0 * occ, 0.0, 1.0);
229
+ }
230
+
231
+ float fresnel(vec3 viewDir, vec3 normal, float power) {
232
+ return pow(1.0 - max(dot(viewDir, normal), 0.0), power);
233
+ }
234
+
235
+ // Fake directional shadow via downward AO probe
236
+ float cheapShadow(vec3 pos, vec3 lightDir) {
237
+ float d1 = sceneSDF(pos + lightDir * 0.15);
238
+ float d2 = sceneSDF(pos + lightDir * 0.4);
239
+ float d3 = sceneSDF(pos + lightDir * 0.8);
240
+ return clamp(0.3 + 0.7 * smoothstep(0.0, 0.3, min(min(d1, d2), d3)), 0.0, 1.0);
241
+ }
242
+
243
+ mat3 setCamera(vec3 ro, vec3 ta, float cr) {
244
+ vec3 cw = normalize(ta - ro);
245
+ vec3 cp = vec3(sin(cr), cos(cr), 0.0);
246
+ vec3 cu = normalize(cross(cw, cp));
247
+ vec3 cv = normalize(cross(cu, cw));
248
+ return mat3(cu, cv, cw);
249
+ }
250
+
251
+ void main() {
252
+ vec2 fragCoord = vUv * uResolution;
253
+ vec2 uv = (2.0 * fragCoord - uResolution) / uResolution.y;
254
+ vec3 ro = uCameraPos;
255
+ vec3 ta = uCameraTarget;
256
+ mat3 ca = setCamera(ro, ta, 0.0);
257
+ vec3 rd = ca * normalize(vec3(uv, 1.8));
258
+ float t = 0.0;
259
+ float d;
260
+ vec3 p;
261
+ bool hit = false;
262
+ for (int i = 0; i < MARCH_STEPS; i++) {
263
+ p = ro + rd * t;
264
+ d = sceneSDF(p);
265
+ if (d < 0.002) { hit = true; break; }
266
+ t += d * 0.9;
267
+ if (t > 15.0) break;
268
+ }
269
+ vec3 col = vec3(0.02, 0.02, 0.04);
270
+ col += vec3(0.03, 0.01, 0.06) * (1.0 - uv.y * 0.5);
271
+ if (hit) {
272
+ vec3 nor = calcNormal(p);
273
+ vec3 viewDir = normalize(ro - p);
274
+ vec3 lightPos1 = vec3(3.0, 4.0, 5.0);
275
+ vec3 lightPos2 = vec3(-4.0, 2.0, -3.0);
276
+ vec3 lightDir1 = normalize(lightPos1 - p);
277
+ vec3 lightDir2 = normalize(lightPos2 - p);
278
+ float diff1 = max(dot(nor, lightDir1), 0.0);
279
+ float diff2 = max(dot(nor, lightDir2), 0.0);
280
+ vec3 halfDir1 = normalize(lightDir1 + viewDir);
281
+ vec3 halfDir2 = normalize(lightDir2 + viewDir);
282
+ float spec1 = pow(max(dot(nor, halfDir1), 0.0), 64.0);
283
+ float spec2 = pow(max(dot(nor, halfDir2), 0.0), 32.0);
284
+ float sha1 = cheapShadow(p + nor * 0.01, lightDir1);
285
+ float sha2 = cheapShadow(p + nor * 0.01, lightDir2);
286
+ float ao = calcAO(p, nor);
287
+ float fres = fresnel(viewDir, nor, 3.0);
288
+ float sss = max(0.0, dot(viewDir, -lightDir1)) * 0.3;
289
+ vec3 baseColor1 = vec3(0.8, 0.15, 0.3);
290
+ vec3 baseColor2 = vec3(0.15, 0.4, 0.9);
291
+ vec3 baseColor3 = vec3(0.95, 0.5, 0.1);
292
+ float colorMix = sin(p.x * 1.5 + uTime * 0.5) * 0.5 + 0.5;
293
+ float colorMix2 = cos(p.y * 2.0 - uTime * 0.3) * 0.5 + 0.5;
294
+ vec3 baseColor = mix(baseColor1, baseColor2, colorMix);
295
+ baseColor = mix(baseColor, baseColor3, colorMix2 * 0.3);
296
+ vec3 diffuse = baseColor * (diff1 * sha1 * vec3(1.0, 0.95, 0.9) * 0.8 + diff2 * sha2 * vec3(0.4, 0.5, 0.9) * 0.4);
297
+ vec3 specular = vec3(1.0, 0.95, 0.9) * spec1 * sha1 * 0.7 + vec3(0.5, 0.6, 1.0) * spec2 * sha2 * 0.3;
298
+ vec3 ambient = baseColor * vec3(0.08, 0.06, 0.12) * ao;
299
+ vec3 rim = mix(vec3(0.4, 0.6, 1.0), vec3(1.0, 0.4, 0.6), colorMix) * fres * 0.6;
300
+ vec3 subsurface = baseColor * sss * vec3(1.0, 0.3, 0.2);
301
+ col = ambient + diffuse + specular + rim + subsurface;
302
+ float iridescence = fres * 0.4;
303
+ vec3 iriColor = vec3(
304
+ sin(dot(nor, vec3(1.0, 0.0, 0.0)) * 6.0 + uTime) * 0.5 + 0.5,
305
+ sin(dot(nor, vec3(0.0, 1.0, 0.0)) * 6.0 + uTime * 1.3) * 0.5 + 0.5,
306
+ sin(dot(nor, vec3(0.0, 0.0, 1.0)) * 6.0 + uTime * 0.7) * 0.5 + 0.5
307
+ );
308
+ col += iriColor * iridescence;
309
+ vec3 ref = reflect(-viewDir, nor);
310
+ float envRefl = smoothstep(-0.2, 1.0, ref.y) * 0.15;
311
+ col += vec3(0.3, 0.4, 0.8) * envRefl * fres;
312
+ }
313
+ col = col / (col + vec3(1.0));
314
+ col = pow(col, vec3(1.0 / 2.2));
315
+ float vig = 1.0 - 0.3 * dot(uv * 0.5, uv * 0.5);
316
+ col *= vig;
317
+ gl_FragColor = vec4(col, 1.0);
318
+ }
319
+ `,
320
+ depthWrite: false,
321
+ depthTest: false
322
+ });
323
+
324
+ const quad = new THREE.Mesh(quadGeometry, quadMaterial);
325
+ quad.name = 'raymarchQuad';
326
+ quad.frustumCulled = false;
327
+
328
+ const quadScene = new THREE.Scene();
329
+ const quadCamera = new THREE.OrthographicCamera(-1, 1, 1, -1, 0, 1);
330
+ quadScene.add(quad);
331
+
332
+ // ============ DOT MATRIX SHADER ============
333
+ const DotMatrixShader = {
334
+ uniforms: {
335
+ tDiffuse: { value: null },
336
+ uResolution: { value: new THREE.Vector2(size.width, size.height) },
337
+ uDotSize: { value: 5.0 },
338
+ uDotGap: { value: 2.5 },
339
+ uBrightness: { value: 0.85 },
340
+ uContrast: { value: 0.60 },
341
+ uThreshold: { value: 0.03 },
342
+ uDotColor: { value: new THREE.Vector3(1.0, 1.0, 1.0) },
343
+ uBgColor: { value: new THREE.Vector3(0.00784, 0.00784, 0.01176) },
344
+ uCrossEnabled: { value: 0.0 },
345
+ uCrossIntensity: { value: 0.95 },
346
+ uCrossAngle: { value: 0.4363 },
347
+ uBloomEnabled: { value: 1.0 },
348
+ uBloomIntensity: { value: 0.55 },
349
+ uBloomSize: { value: 1.50 },
350
+ uCrtEnabled: { value: 1.0 },
351
+ uCrtCurvature: { value: 0.0 },
352
+ uCrtScanlines: { value: 0.75 },
353
+ uCrtVignette: { value: 2.00 },
354
+ uCrtChroma: { value: 0.0 },
355
+ uDitherEnabled: { value: 1.0 },
356
+ uTime: { value: 0 }
357
+ },
358
+ vertexShader: `
359
+ varying vec2 vUv;
360
+ void main() {
361
+ vUv = uv;
362
+ gl_Position = vec4(position, 1.0);
363
+ }
364
+ `,
365
+ fragmentShader: `
366
+ precision highp float;
367
+ uniform sampler2D tDiffuse;
368
+ uniform vec2 uResolution;
369
+ uniform float uDotSize;
370
+ uniform float uDotGap;
371
+ uniform float uBrightness;
372
+ uniform float uContrast;
373
+ uniform float uThreshold;
374
+ uniform vec3 uDotColor;
375
+ uniform vec3 uBgColor;
376
+ uniform float uCrossEnabled;
377
+ uniform float uCrossIntensity;
378
+ uniform float uCrossAngle;
379
+ uniform float uBloomEnabled;
380
+ uniform float uBloomIntensity;
381
+ uniform float uBloomSize;
382
+ uniform float uCrtEnabled;
383
+ uniform float uCrtCurvature;
384
+ uniform float uCrtScanlines;
385
+ uniform float uCrtVignette;
386
+ uniform float uCrtChroma;
387
+ uniform float uDitherEnabled;
388
+ uniform float uTime;
389
+ varying vec2 vUv;
390
+
391
+ vec2 crtDistort(vec2 uv, float k) {
392
+ vec2 cc = uv - 0.5;
393
+ float r2 = dot(cc, cc);
394
+ float f = 1.0 + r2 * k * 0.01;
395
+ return cc * f + 0.5;
396
+ }
397
+
398
+ void main() {
399
+ vec2 uv = vUv;
400
+ if (uCrtEnabled > 0.5) {
401
+ uv = crtDistort(uv, uCrtCurvature);
402
+ if (uv.x < 0.0 || uv.x > 1.0 || uv.y < 0.0 || uv.y > 1.0) {
403
+ gl_FragColor = vec4(0.0, 0.0, 0.0, 1.0);
404
+ return;
405
+ }
406
+ }
407
+ vec3 col;
408
+ if (uCrtEnabled > 0.5 && uCrtChroma > 0.01) {
409
+ vec2 dir = (uv - 0.5) * uCrtChroma * 0.002;
410
+ col.r = texture2D(tDiffuse, uv + dir).r;
411
+ col.g = texture2D(tDiffuse, uv).g;
412
+ col.b = texture2D(tDiffuse, uv - dir).b;
413
+ } else {
414
+ col = texture2D(tDiffuse, uv).rgb;
415
+ }
416
+ if (uDitherEnabled < 0.5) {
417
+ if (uCrtEnabled > 0.5 && uCrtScanlines > 0.001) {
418
+ float scanline = sin(uv.y * uResolution.y * 0.8) * 0.5 + 0.5;
419
+ col *= 1.0 - uCrtScanlines * (1.0 - scanline);
420
+ }
421
+ if (uCrtEnabled > 0.5 && uCrtVignette > 0.001) {
422
+ vec2 vig = uv * (1.0 - uv);
423
+ float vigMask = pow(vig.x * vig.y * 16.0, uCrtVignette * 0.3);
424
+ col *= vigMask;
425
+ }
426
+ gl_FragColor = vec4(col, 1.0);
427
+ return;
428
+ }
429
+ vec2 pixelCoord = uv * uResolution;
430
+ float spacing = uDotSize + uDotGap;
431
+ vec2 cell = floor(pixelCoord / spacing);
432
+ vec2 cellCenter = (cell + 0.5) * spacing;
433
+ vec2 sampleUV = cellCenter / uResolution;
434
+ vec3 cellCol;
435
+ if (uCrtEnabled > 0.5 && uCrtChroma > 0.01) {
436
+ vec2 dir = (sampleUV - 0.5) * uCrtChroma * 0.002;
437
+ cellCol.r = texture2D(tDiffuse, sampleUV + dir).r;
438
+ cellCol.g = texture2D(tDiffuse, sampleUV).g;
439
+ cellCol.b = texture2D(tDiffuse, sampleUV - dir).b;
440
+ } else {
441
+ cellCol = texture2D(tDiffuse, sampleUV).rgb;
442
+ }
443
+ float lum = dot(cellCol, vec3(0.299, 0.587, 0.114));
444
+ lum *= uBrightness;
445
+ lum = (lum - 0.5) * (1.0 / uContrast) + 0.5;
446
+ lum = clamp(lum, 0.0, 1.0);
447
+ vec3 bgColor = uBgColor;
448
+ if (lum < uThreshold) {
449
+ vec3 result = bgColor;
450
+ if (uCrtEnabled > 0.5 && uCrtScanlines > 0.001) {
451
+ float scanline = sin(uv.y * uResolution.y * 0.8) * 0.5 + 0.5;
452
+ result *= 1.0 - uCrtScanlines * (1.0 - scanline) * 0.3;
453
+ }
454
+ if (uCrtEnabled > 0.5 && uCrtVignette > 0.001) {
455
+ vec2 vig = uv * (1.0 - uv);
456
+ float vigMask = pow(vig.x * vig.y * 16.0, uCrtVignette * 0.3);
457
+ result *= vigMask;
458
+ }
459
+ gl_FragColor = vec4(result, 1.0);
460
+ return;
461
+ }
462
+ float maxRadius = uDotSize * 0.5;
463
+ float minRadius = 0.4;
464
+ float lumCurve = pow(lum, uContrast);
465
+ float dotRadius = mix(minRadius, maxRadius, lumCurve);
466
+ vec2 d = pixelCoord - cellCenter;
467
+ vec2 absD = abs(d);
468
+ float cornerRadius = mix(0.8, 0.2, lumCurve);
469
+ float squareness = smoothstep(0.15, 0.7, lumCurve);
470
+ float circleDist = length(d);
471
+ float circleEdge = 1.0 - smoothstep(dotRadius - 0.5, dotRadius + 0.5, circleDist);
472
+ vec2 qd = absD - vec2(dotRadius - cornerRadius);
473
+ float rsDist = length(max(qd, 0.0)) + min(max(qd.x, qd.y), 0.0) - cornerRadius;
474
+ float squareEdge = 1.0 - smoothstep(-0.5, 0.5, rsDist);
475
+ float dotMask = mix(circleEdge, squareEdge, squareness);
476
+ vec3 brightColor = uDotColor;
477
+ vec3 midColor = uDotColor * 0.7;
478
+ vec3 dimColor = uDotColor * 0.25;
479
+ vec3 colNorm = cellCol / (max(max(cellCol.r, cellCol.g), cellCol.b) + 0.001);
480
+ vec3 dotColor;
481
+ if (lum > 0.65) {
482
+ dotColor = mix(brightColor, brightColor * colNorm * 1.5, 0.2);
483
+ dotColor *= 1.0 + (lum - 0.65) * 1.5;
484
+ } else if (lum > 0.25) {
485
+ float mt = (lum - 0.25) / 0.4;
486
+ dotColor = mix(midColor, brightColor, mt);
487
+ dotColor = mix(dotColor, dotColor * colNorm * 1.2, 0.15);
488
+ } else {
489
+ float st = lum / 0.25;
490
+ dotColor = mix(dimColor * 0.5, dimColor, st);
491
+ }
492
+ float shadowCrosshatch = 0.0;
493
+ if (uCrossEnabled > 0.5 && lum < 0.35) {
494
+ float crossSpacing = spacing * 0.7;
495
+ float ca = cos(uCrossAngle);
496
+ float sa = sin(uCrossAngle);
497
+ vec2 rotP = vec2(ca * pixelCoord.x - sa * pixelCoord.y, sa * pixelCoord.x + ca * pixelCoord.y);
498
+ vec2 crossCell = floor(rotP / crossSpacing);
499
+ vec2 crossCenter = (crossCell + 0.5) * crossSpacing;
500
+ float crossDist = length(rotP - crossCenter);
501
+ float shadowIntensity = smoothstep(0.35, 0.05, lum);
502
+ float crossRadius = mix(0.3, maxRadius * 0.35, shadowIntensity);
503
+ shadowCrosshatch = 1.0 - smoothstep(crossRadius - 0.4, crossRadius + 0.4, crossDist);
504
+ shadowCrosshatch *= shadowIntensity * uCrossIntensity;
505
+ }
506
+ float bloomMask = 0.0;
507
+ if (uBloomEnabled > 0.5 && lum > 0.6) {
508
+ float bloomRadius = dotRadius * uBloomSize;
509
+ float bloomDist = length(d);
510
+ bloomMask = (1.0 - smoothstep(bloomRadius - 1.0, bloomRadius + 1.0, bloomDist));
511
+ bloomMask *= smoothstep(0.6, 1.0, lum) * uBloomIntensity * 0.5;
512
+ }
513
+ vec3 result = bgColor;
514
+ vec3 crossColor = dimColor * 0.4;
515
+ result = mix(result, crossColor, shadowCrosshatch);
516
+ result += brightColor * bloomMask;
517
+ result = mix(result, dotColor, dotMask);
518
+ float innerMask = 0.0;
519
+ if (squareness > 0.5) {
520
+ vec2 qd2 = absD - vec2(dotRadius * 0.85 - cornerRadius);
521
+ float rsDist2 = length(max(qd2, 0.0)) + min(max(qd2.x, qd2.y), 0.0) - cornerRadius;
522
+ innerMask = 1.0 - smoothstep(-0.5, 0.5, rsDist2);
523
+ } else {
524
+ innerMask = 1.0 - smoothstep(dotRadius * 0.7 - 0.5, dotRadius * 0.7 + 0.5, circleDist);
525
+ }
526
+ float phosphorEdge = max(dotMask - innerMask, 0.0);
527
+ result += brightColor * phosphorEdge * 0.15 * lum;
528
+ if (uCrtEnabled > 0.5 && uCrtScanlines > 0.001) {
529
+ float scanline = sin(uv.y * uResolution.y * 0.8) * 0.5 + 0.5;
530
+ result *= 1.0 - uCrtScanlines * (1.0 - scanline);
531
+ }
532
+ if (uCrtEnabled > 0.5 && uCrtVignette > 0.001) {
533
+ vec2 vig = uv * (1.0 - uv);
534
+ float vigMask = pow(vig.x * vig.y * 16.0, uCrtVignette * 0.3);
535
+ result *= vigMask;
536
+ }
537
+ if (uCrtEnabled > 0.5) {
538
+ result = result;
539
+ }
540
+ gl_FragColor = vec4(result, 1.0);
541
+ }
542
+ `
543
+ };
544
+
545
+ // ============ POST PROCESSING ============
546
+ // Use a standard RenderPass for the quad scene — the raymarching resolution
547
+ // is controlled by uResolution on the quad material (set to half-res),
548
+ // while the composer and dot-matrix shader run at full native resolution.
549
+ const composer = new EffectComposer(renderer);
550
+ composer.setSize(size.width, size.height);
551
+
552
+ const renderPass = new RenderPass(quadScene, quadCamera);
553
+ composer.addPass(renderPass);
554
+
555
+ const dotMatrixPass = new ShaderPass(DotMatrixShader);
556
+ composer.addPass(dotMatrixPass);
557
+ const outputPass = new OutputPass();
558
+ composer.addPass(outputPass);
559
+
560
+ // Dot matrix runs at full resolution for crisp patterns
561
+ dotMatrixPass.uniforms.uResolution.value.set(size.width, size.height);
562
+
563
+ // ============ SCROLL PARALLAX ============
564
+ let scrollY = 0;
565
+ let smoothScrollY = 0;
566
+
567
+ window.addEventListener('scroll', () => {
568
+ scrollY = window.scrollY;
569
+ }, { passive: true });
570
+
571
+ // ============ ANIMATION LOOP ============
572
+ const clock = new THREE.Clock();
573
+ const raycaster = new THREE.Raycaster();
574
+ const _forward = new THREE.Vector3();
575
+ let resizeTimeout = null;
576
+
577
+ // ============ FPS WATCHDOG — auto-downgrade if <30fps ============
578
+ const tierOrder = ['high', 'mid', 'low'];
579
+ let fpsFrames = 0;
580
+ let fpsStartTime = performance.now();
581
+ let fpsWatchdogActive = true;
582
+ const FPS_SAMPLE_WINDOW = 2000; // 2 seconds
583
+ const FPS_THRESHOLD = 30;
584
+
585
+ function downgradeQuality() {
586
+ const currentIndex = tierOrder.indexOf(currentTier);
587
+ if (currentIndex >= tierOrder.length - 1) {
588
+ // Already at lowest tier
589
+ fpsWatchdogActive = false;
590
+ return;
591
+ }
592
+ const nextTier = tierOrder[currentIndex + 1];
593
+ currentTier = nextTier;
594
+ quality = { ...qualityPresets[currentTier] };
595
+
596
+ // Apply new quality — update pixel ratio
597
+ const pr = Math.min(window.devicePixelRatio, quality.pixelRatio);
598
+ renderer.setPixelRatio(pr);
599
+ renderer.setSize(size.width, size.height);
600
+ composer.setSize(size.width, size.height);
601
+
602
+ // Update dot matrix uniforms
603
+ dotMatrixPass.uniforms.uDotSize.value = quality.dotSize;
604
+ dotMatrixPass.uniforms.uDotGap.value = quality.dotGap;
605
+ dotMatrixPass.uniforms.uCrtScanlines.value = quality.scanlines;
606
+ dotMatrixPass.uniforms.uBloomEnabled.value = quality.bloomEnabled ? 1.0 : 0.0;
607
+
608
+ // Reset watchdog for another sample window
609
+ fpsFrames = 0;
610
+ fpsStartTime = performance.now();
611
+
612
+ // If we hit the lowest tier, stop watching
613
+ if (currentIndex + 1 >= tierOrder.length - 1) {
614
+ fpsWatchdogActive = false;
615
+ }
616
+
617
+ // Update tier display
618
+ const tierEl = document.getElementById('settings-tier');
619
+ if (tierEl) tierEl.textContent = `GPU Tier: ${currentTier} (auto)`;
620
+ }
621
+
622
+ function animate() {
623
+ // Skip rendering when the tab is hidden or the hero has scrolled off screen (see heroOnScreen).
624
+ if (!pageVisible || !heroOnScreen) return;
625
+
626
+ const dt = Math.min(clock.getDelta(), 0.05); // Clamp delta to avoid huge jumps
627
+ const elapsed = clock.elapsedTime;
628
+ controls.update();
629
+
630
+ const targetR = mouseInScene ? (mousePressed ? mouseSphereClickRadius : mouseSphereTargetRadius) : 0.0;
631
+ const fadeSpeed = mouseInScene ? (mousePressed ? 10.0 : 6.0) : 3.0;
632
+ const step = Math.min(1.0, fadeSpeed * dt);
633
+ mouseSphereRadius += (targetR - mouseSphereRadius) * step;
634
+ if (mouseSphereRadius < 0.005 && !mouseInScene) mouseSphereRadius = 0.0;
635
+
636
+ raycaster.setFromCamera(mouse, camera);
637
+ const rayDir = raycaster.ray.direction;
638
+ const rayOrigin = raycaster.ray.origin;
639
+ _forward.subVectors(controls.target, camera.position).normalize();
640
+ const dist = camera.position.distanceTo(controls.target);
641
+ const t = dist / rayDir.dot(_forward);
642
+ mouseWorldTarget.copy(rayOrigin).addScaledVector(rayDir, t);
643
+ mouseWorld.lerp(mouseWorldTarget, mouseDamping);
644
+
645
+ // Smooth scroll interpolation for parallax
646
+ smoothScrollY += (scrollY - smoothScrollY) * 0.1;
647
+ const vh = window.innerHeight;
648
+ const scrollProgress = Math.min(smoothScrollY / vh, 1.0);
649
+
650
+ // Parallax: shift camera subtly as user scrolls (3D depth effect)
651
+ const baseZ = 5;
652
+ const baseCamY = 0;
653
+ camera.position.y = baseCamY + scrollProgress * 1.5;
654
+ camera.position.z = baseZ + scrollProgress * 0.8;
655
+ controls.target.y = scrollProgress * 0.8;
656
+
657
+ quadMaterial.uniforms.uMouseSpherePos.value.copy(mouseWorld);
658
+ quadMaterial.uniforms.uMouseSphereRadius.value = mouseSphereRadius;
659
+ quadMaterial.uniforms.uTime.value = elapsed;
660
+ quadMaterial.uniforms.uCameraPos.value.copy(camera.position);
661
+ quadMaterial.uniforms.uCameraTarget.value.copy(controls.target);
662
+ dotMatrixPass.uniforms.uTime.value = elapsed;
663
+
664
+ // Composer renders the quad scene via RenderPass, then applies dot matrix + CRT
665
+ composer.render();
666
+
667
+ // FPS watchdog — sample for 2s windows, downgrade if below threshold
668
+ if (fpsWatchdogActive) {
669
+ fpsFrames++;
670
+ const elapsed_ms = performance.now() - fpsStartTime;
671
+ if (elapsed_ms >= FPS_SAMPLE_WINDOW) {
672
+ const avgFps = (fpsFrames / elapsed_ms) * 1000;
673
+ if (avgFps < FPS_THRESHOLD) {
674
+ downgradeQuality();
675
+ } else {
676
+ // Performance is fine, stop watching
677
+ fpsWatchdogActive = false;
678
+ }
679
+ }
680
+ }
681
+ }
682
+
683
+ renderer.setAnimationLoop(animate);
684
+
685
+ // ============ RESIZE (debounced — render loop never pauses) ============
686
+ function handleResize() {
687
+ size = getSize();
688
+ camera.aspect = size.width / size.height;
689
+ camera.updateProjectionMatrix();
690
+
691
+ const pr = Math.min(window.devicePixelRatio, quality.pixelRatio);
692
+ renderer.setPixelRatio(pr);
693
+ renderer.setSize(size.width, size.height);
694
+
695
+ quadMaterial.uniforms.uResolution.value.set(size.width, size.height);
696
+ quadMaterial.uniforms.uPixelRatio.value = pr;
697
+ dotMatrixPass.uniforms.uResolution.value.set(size.width, size.height);
698
+
699
+ composer.setSize(size.width, size.height);
700
+ }
701
+
702
+ window.addEventListener('resize', () => {
703
+ clearTimeout(resizeTimeout);
704
+ // Immediately update the canvas CSS size so it fills the window (no black gaps)
705
+ // but defer the expensive framebuffer reallocation
706
+ renderer.domElement.style.width = window.innerWidth + 'px';
707
+ renderer.domElement.style.height = window.innerHeight + 'px';
708
+ resizeTimeout = setTimeout(handleResize, 200);
709
+ }, { passive: true });
710
+
711
+ // ============ DEFERRED INIT — pre-warm the shader after first paint ============
712
+ // Force one render so the first real frame doesn't stutter on shader compile.
713
+ if ('requestIdleCallback' in window) {
714
+ requestIdleCallback(() => composer.render(), { timeout: 1000 });
715
+ } else {
716
+ setTimeout(() => composer.render(), 200); // Safari fallback
717
+ }
transformers-gemma4.js ADDED
@@ -0,0 +1,195 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ import {
2
+ AutoProcessor,
3
+ Gemma4ForConditionalGeneration,
4
+ InterruptableStoppingCriteria,
5
+ TextStreamer,
6
+ load_image,
7
+ read_audio,
8
+ } from "https://cdn.jsdelivr.net/npm/@huggingface/transformers@4.2.0";
9
+
10
+ const MODEL_IDS = {
11
+ "google/gemma-4-E2B-it-qat-mobile-transformers": "onnx-community/gemma-4-E2B-it-ONNX",
12
+ "google/gemma-4-E4B-it-qat-mobile-transformers": "onnx-community/gemma-4-E4B-it-ONNX",
13
+ "onnx-community/gemma-4-E2B-it-ONNX": "onnx-community/gemma-4-E2B-it-ONNX",
14
+ "onnx-community/gemma-4-E4B-it-ONNX": "onnx-community/gemma-4-E4B-it-ONNX",
15
+ };
16
+
17
+ export class Gemma4Multimodal {
18
+ static async load(requestedId, { onProgress = () => {} } = {}) {
19
+ const modelId = MODEL_IDS[requestedId] ?? requestedId;
20
+ onProgress({ status: "tokenizer", message: "Loading multimodal processor", fraction: 0 });
21
+ const processor = await AutoProcessor.from_pretrained(modelId, {
22
+ progress_callback: (info) => reportProgress(info, onProgress),
23
+ });
24
+ onProgress({ status: "weights", message: "Loading WebGPU model", fraction: 0 });
25
+ const model = await Gemma4ForConditionalGeneration.from_pretrained(modelId, {
26
+ dtype: "q4f16",
27
+ device: "webgpu",
28
+ progress_callback: (info) => reportProgress(info, onProgress),
29
+ });
30
+ onProgress({ status: "ready", message: "Ready", fraction: 1 });
31
+ return new Gemma4Multimodal(modelId, processor, model);
32
+ }
33
+
34
+ constructor(modelId, processor, model) {
35
+ this.modelId = modelId;
36
+ this.processor = processor;
37
+ this.model = model;
38
+ }
39
+
40
+ async *generate(messages, { maxNewTokens = 512, signal } = {}) {
41
+ const prepared = await prepareInputs(this.processor, messages);
42
+ const stopping = new InterruptableStoppingCriteria();
43
+ const onAbort = () => stopping.interrupt();
44
+ signal?.addEventListener("abort", onAbort, { once: true });
45
+ if (signal?.aborted) stopping.interrupt();
46
+
47
+ const queue = [];
48
+ let wake = null;
49
+ let done = false;
50
+ let failure = null;
51
+ let fullText = "";
52
+ const push = (text) => {
53
+ if (!text) return;
54
+ fullText += text;
55
+ queue.push({ delta: text, text: fullText });
56
+ wake?.();
57
+ wake = null;
58
+ };
59
+
60
+ const streamer = new TextStreamer(this.processor.tokenizer, {
61
+ skip_prompt: true,
62
+ skip_special_tokens: true,
63
+ callback_function: push,
64
+ });
65
+
66
+ const generation = this.model.generate({
67
+ ...prepared.inputs,
68
+ max_new_tokens: maxNewTokens,
69
+ do_sample: false,
70
+ streamer,
71
+ stopping_criteria: [stopping],
72
+ }).catch((error) => { failure = error; }).finally(() => {
73
+ done = true;
74
+ wake?.();
75
+ wake = null;
76
+ prepared.cleanup();
77
+ signal?.removeEventListener("abort", onAbort);
78
+ });
79
+
80
+ while (!done || queue.length) {
81
+ if (!queue.length) await new Promise((resolve) => { wake = resolve; });
82
+ while (queue.length) yield queue.shift();
83
+ }
84
+ await generation;
85
+ if (failure) throw failure;
86
+ }
87
+
88
+ reset() {}
89
+
90
+ dispose() {
91
+ this.model?.dispose?.();
92
+ }
93
+ }
94
+
95
+ async function prepareInputs(processor, messages) {
96
+ const templated = [];
97
+ const imageUrls = [];
98
+ const audioSources = [];
99
+ const temporaryUrls = [];
100
+ // Transformers.js 4.2 currently merges one set of Gemma 4 multimodal
101
+ // features per generation call. Re-inserting media from earlier turns makes
102
+ // the number of placeholder tokens diverge from the newly encoded features.
103
+ // Keep earlier turns as text; the assistant response already preserves their
104
+ // conversational meaning. Only encode attachments from the newest media turn.
105
+ const lastIndex = messages.length - 1;
106
+ const activeMediaIndex = messages[lastIndex]?.role === "user" && messages[lastIndex]?.attachments?.length
107
+ ? lastIndex
108
+ : -1;
109
+
110
+ for (let messageIndex = 0; messageIndex < messages.length; messageIndex++) {
111
+ const message = messages[messageIndex];
112
+ if (message.role !== "user" || !message.attachments?.length || messageIndex !== activeMediaIndex) {
113
+ const previousMedia = message.role === "user" && message.attachments?.length
114
+ ? describePreviousMedia(message.attachments)
115
+ : "";
116
+ templated.push({ role: message.role, content: message.content || "" });
117
+ if (previousMedia && !message.content) templated[templated.length - 1].content = previousMedia;
118
+ continue;
119
+ }
120
+
121
+ const content = [];
122
+ for (const attachment of message.attachments.filter((item) => item.type === "image")) {
123
+ content.push({ type: "image" });
124
+ imageUrls.push(mediaUrl(attachment, temporaryUrls));
125
+ }
126
+ if (message.content) content.push({ type: "text", text: message.content });
127
+ for (const attachment of message.attachments.filter((item) => item.type === "audio")) {
128
+ content.push({ type: "audio" });
129
+ audioSources.push(attachment.pcm ?? mediaUrl(attachment, temporaryUrls));
130
+ }
131
+ templated.push({ role: "user", content });
132
+ }
133
+
134
+ const prompt = processor.apply_chat_template(templated, {
135
+ enable_thinking: false,
136
+ add_generation_prompt: true,
137
+ });
138
+ const images = await Promise.all(imageUrls.map((url) => load_image(url)));
139
+ const audios = await Promise.all(audioSources.map((source) =>
140
+ source instanceof Float32Array ? source : read_audio(source, 16000)
141
+ ));
142
+ const inputs = await processor(
143
+ prompt,
144
+ images.length ? (images.length === 1 ? images[0] : images) : null,
145
+ audios.length ? (audios.length === 1 ? audios[0] : audios) : null,
146
+ { add_special_tokens: false },
147
+ );
148
+ if (audioSources.length && !inputs.input_features) {
149
+ throw new Error("The Gemma 4 processor did not create audio features (input_features is missing).");
150
+ }
151
+ return {
152
+ inputs,
153
+ cleanup: () => temporaryUrls.forEach((url) => URL.revokeObjectURL(url)),
154
+ };
155
+ }
156
+
157
+ function describePreviousMedia(attachments) {
158
+ const images = attachments.filter((item) => item.type === "image").length;
159
+ const audios = attachments.filter((item) => item.type === "audio").length;
160
+ const parts = [];
161
+ if (images) parts.push(`[${images} previous image${images > 1 ? "s" : ""}]`);
162
+ if (audios) parts.push(`[${audios} previous audio message${audios > 1 ? "s" : ""}]`);
163
+ return parts.join(" ");
164
+ }
165
+
166
+ function mediaUrl(attachment, temporaryUrls) {
167
+ if (attachment.url) return attachment.url;
168
+ const source = attachment.file ?? attachment.blob;
169
+ if (!source) throw new Error(`Missing ${attachment.type} data`);
170
+ const url = URL.createObjectURL(source);
171
+ temporaryUrls.push(url);
172
+ return url;
173
+ }
174
+
175
+ function reportProgress(info, callback) {
176
+ if (info.status === "progress_total") {
177
+ callback({
178
+ status: "weights",
179
+ kind: "bytes",
180
+ loaded: info.loaded,
181
+ total: info.total,
182
+ fraction: Number.isFinite(info.progress) ? info.progress / 100 : undefined,
183
+ message: info.file ? `Loading ${info.file}` : "Loading model files",
184
+ });
185
+ } else if (info.status === "progress") {
186
+ callback({
187
+ status: "weights",
188
+ kind: "bytes",
189
+ loaded: info.loaded,
190
+ total: info.total,
191
+ fraction: Number.isFinite(info.progress) ? info.progress / 100 : undefined,
192
+ message: info.file ? `Loading ${info.file}` : "Loading model files",
193
+ });
194
+ }
195
+ }