Okay, let's create a "Crooked Mirror" webcam project with three different distortion effects displayed in a grid.

After granting webcam permission, you should see three panels, each showing the webcam feed with a different distortion effect applied in real-time.

Okay, let's troubleshoot this. Black screens usually mean the video stream isn't being drawn onto the canvases correctly, or there's an issue accessing the webcam data.

We'll add some checks and logging to diagnose the problem.

Key changes:

1. Robust Initialization: Added checks to ensure canvas elements exist and contexts are obtained. Wrapped setupWebcam call in a DOMContentLoaded listener or call it directly if the DOM is already loaded.
2. Video Readiness: Introduced a videoReady flag set only after onloadedmetadata fires and dimensions are confirmed. The drawMirrors loop now checks this flag and valid dimensions (width > 0, height > 0) before attempting to draw.
3. Explicit Play: Added video.play() after setting srcObject, which can be necessary in some browsers to start the stream processing.
4. Error Handling: Added video.onerror and basic try...catch blocks within the effect functions to log potential errors during pixel manipulation. Added guard clauses to effects.
5. Drawing Logic: Refined the drawing logic in drawMirrors. Effects that read the canvas first (getImageData) need the base image drawn before the effect is applied. The Scanline effect was modified to draw the base image itself before applying the scanlines.
6. CSS: Made minor adjustments for layout and more robust hiding of the video element.
7. Logging: Added more console.log statements to track the initialization process. Check your browser's developer console (usually F12) for these messages and any errors.

Please try this updated version. Check the developer console for logs that might indicate where the process is failing (e.g., webcam access errors, video errors, canvas errors).

Okay, let's add three more effects: Pixelation, RGB Split, and Invert Colors.

We'll update the HTML to include more canvases, adjust the CSS grid, and add the new effect functions in JavaScript.

Now you should have a grid of six canvases, each displaying the webcam feed with a unique distortion effect.