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docs: note computer controls screenshots are faster for webgl #341

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docs: note computer controls screenshots are faster for webgl #341

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4 changes: 4 additions & 0 deletions browsers/computer-controls.mdx
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Expand Up @@ -158,6 +158,10 @@ kernel browsers computer move-mouse <session id> --x 500 --y 300 --smooth=false

Capture a full-screen PNG or a specific region.

<Tip>
For WebGL and other animation-heavy pages, `captureScreenshot` is noticeably faster than CDP's `Page.captureScreenshot`. If you're driving a computer-use loop off screenshots, prefer computer controls. [GPU acceleration](/browsers/gpu-acceleration) gives an additional small speedup for computer controls screenshots, but does not speed up CDP screenshots.
</Tip>

<CodeGroup>
```typescript Typescript/Javascript
import fs from 'fs';
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4 changes: 4 additions & 0 deletions browsers/gpu-acceleration.mdx
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Expand Up @@ -44,6 +44,10 @@ GPU acceleration is useful for:
- Video processing and playback
- Canvas-heavy applications

<Note>
GPU acceleration speeds up page rendering, not screenshot capture. CDP's `Page.captureScreenshot` latency is unaffected by GPU. [Computer controls screenshots](/browsers/computer-controls#take-screenshots) see a small speedup with GPU enabled.
</Note>

## Availability

GPU acceleration is available on [Start-Up and Enterprise plans](https://kernel.sh/pricing). Due to limited capacity during the research preview, GPU-enabled browsers may not always be available.
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