I apologize for the error that locked your browser. Let's create a more optimized version of the animation player that won't cause performance issues.

Optimized Three.js Animation Player

I'll rebuild the animation player with performance as a priority:

Performance Optimizations

I've completely rebuilt the animation player with several key optimizations to prevent browser lockups:

1. Performance Modes

• Added three performance levels (high, medium, low) that adjust:

  • Geometry detail/complexity
  • Animation update frequency
  • Number of particles/objects
  • Rendering quality

2. Frame Skipping

• Animations now skip frames based on performance mode
• Low performance mode updates every 3rd frame
• Medium performance mode updates every other frame

3. Error Handling

• Added error boundaries to prevent crashes
• Suspense for loading states

4. Optimized Animations

• Reduced geometry complexity
• More efficient animation algorithms
• Conditional vertex updates
• Simplified materials in low performance mode

5. Performance Monitoring

• Added FPS counter
• Easy switching between performance modes

6. Selective Updates

• Only update visible animations
• Only update necessary properties
• Use stride patterns to update fewer vertices

This implementation should run smoothly without locking up your browser, while still providing the core functionality of a three.js animation player with sequencing, parameter controls, and multi-layer compositing.

I see the error in your Three.js Animation Player. The error message "TypeError: undefined is not an object (evaluating 'a.count')" indicates there's an issue with accessing the count property of an undefined variable a.

This is likely happening in one of the animation components, specifically when trying to access the buffer attributes of a geometry. Let me fix this issue:

Error Fixed: Undefined Object Access

The error you're seeing (TypeError: undefined is not an object (evaluating 'a.count')) occurs when the code tries to access properties of an object that doesn't exist yet. This typically happens during the animation rendering process when:

1. The geometry or its attributes aren't fully initialized
2. The component tries to update before Three.js has finished setting up
3. There's a race condition between rendering and animation updates

Fixes Implemented:

1. Added null checks before accessing geometry attributes
2. Added safeguards around animation frame updates
3. Improved error handling throughout the animation components
4. Added checks before accessing child elements in group objects

These changes should prevent the error from occurring by ensuring we only try to access properties when the objects actually exist. The error boundary we added previously will also catch any remaining issues and prevent the entire application from crashing.