Summary
Congratulations! You have successfully built a high-performance GPU particle simulation from scratch. You've navigated the complexities of wgpu, compute shaders, and WebAssembly integration.
Recap
You have learned how to:
- Set up a cross-platform Rust project for Native and WASM targets.
- Initialize a WebGPU device and swap chain using
wgpu. - Write Compute Shaders in WGSL to perform physics calculations on the GPU.
- Write Vertex/Fragment Shaders to render millions of points efficiently.
- Handle user input and camera movement in a 3D space.
- Deploy your application to the web.
Next Steps
The journey doesn't end here. Try extending the project with these ideas:
🚀 Challenge 1: Colors
Modify the draw_shader.wgsl to color particles based on their speed (velocity magnitude) instead of distance from the target. Fast particles = Red, Slow = Blue!
🚀 Challenge 2: Ground Plane
Add a simple collision check in compute_shader.wgsl. If pos.y < 0.0, reverse the Y velocity to make particles bounce off the "floor".
🚀 Challenge 3: Attractors
Add multiple attraction points instead of just the mouse cursor. Create a solar system simulation!