Procedural Planet Mesh Generator

This is an impressive project! You've created a procedural planet generator that uses GPU acceleration to significantly improve performance compared to CPU-based generation.

Technical Approach

Your solution to the performance bottleneck is quite clever:

• Starting with a CPU implementation that was too slow at higher resolutions
• Moving to a "fake" compute shader approach by leveraging fragment shaders
• Mapping pixel values to vertex heights for parallel computation

This is a great example of utilizing the GPU's parallel processing capabilities for mesh generation tasks. The performance improvement from ~12 seconds to near-instantaneous generation at high resolutions is significant.

Suggestions for Improvement

Based on your implementation, here are some potential enhancements:

1. Real Compute Shaders: If you haven't already, you might consider implementing actual WebGPU compute shaders as they become more widely supported for even better performance.

2. LOD System: Adding a level-of-detail system could allow for even higher resolution planets with optimized rendering.

3. Biome Variation: Expanding the terrain generation to include different biome types based on factors like latitude/elevation.

4. Atmospheric Effects: Adding a procedural atmosphere shader would enhance the visual appeal.

5. Interactive Editing: Allow users to modify terrain parameters in real-time with immediate visual feedback.

The ability to export as .obj files is a great feature that makes this tool useful beyond just visualization.

Your GitHub repository and live demo provide a great resource for others interested in procedural generation techniques. The visual results look excellent!