wpgu-renderer

A small wgpu renderer written in Rust.

Try it out

rasanen.dev/wgpu-renderer
Note: the .wasm is about 50 MB because it embeds Sponza.
Note: shadowmaps and volumetric fog are not enabled on WebGL.

Controls:

• WASD - Move horizontally
• Ctrl/Space - Move vertically
• Mouse - Look around
• Scrollwheel - Increase/Decrease movement speed
• ESC - Quit (Only on standalone version)

Features

• PBS
• glTF models
• 1 realtime pointlight
• Shadow mapping & PCF*
• Volumetric fog*
• Simple wgsl preprocessor for includes
• Runs on WASM and native desktop
  • Tested on:
    • Ubuntu 22.04 (Mesa 23.1.0-devel)
    • Windows 10 Pro 21H2
    • Firefox 109.0
    • Chrome 109.0.5414.120

*Native only

TODO:

• Get shadowmaps & volumetric fog to work on WebGL?
• Improve shadowmap artifacts
• Fix funky transparency around plants
• SSAO
• Bloom
• AA
• Texture filtering
• Immediate mode UI (dear imgui, egui)
• Some type of GI (DDGI, VXGI)

Running locally

Standalone:

cargo run --release

WASM requires:

• wasm-pack
  • cargo install wasm-pack
• miniserve, or some other http server, such as python3 -m http.server.
  • For miniserve, see: run-wasm.sh

References

• wgpu examples
• Learn Wgpu
• Learn OpenGL: PBR
• 42yeah: Raymarching Clouds

Assets

• Sponza
  • Obtained from KhronosGroup glTF-Sample-Models repository, converted to .glb
• Cube
  • Obtained from KhronosGroup glTF-Sample-Models repository, converted to .glb