feat(engine): add experimental canvas renderer using drawElementImage API#198
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miguel-heygen wants to merge 1 commit into
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feat(engine): add experimental canvas renderer using drawElementImage API#198miguel-heygen wants to merge 1 commit into
miguel-heygen wants to merge 1 commit into
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… API Adds a new `--experimental-canvas` flag that uses Chrome's experimental CanvasDrawElement API to composite DOM directly onto a <canvas> before capturing screenshots. Benchmarks show ~25% faster frame capture (33.6ms vs 44.7ms/frame at 1920x1080) by skipping full page compositing. Requires Chrome 146+ with --enable-blink-features=CanvasDrawElement. Gracefully degrades to standard screenshot capture when the API is unavailable. Injects a <canvas layoutsubtree> wrapper at runtime via page.evaluate after the composition loads. Changes: - engine: Add "canvas" CaptureMode, canvasDrawElementCapture(), canvas wrapper injection in initializeSession - producer: Wire experimentalCanvas through RenderConfig - cli: Add --experimental-canvas flag to render command Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This was referenced Apr 2, 2026
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