Proof Engine
A mathematical rendering engine for Rust. Every visual is the output of a real equation.

What is this?
Proof Engine renders mathematics, not graphics. A Lorenz attractor looks like a Lorenz attractor because particles follow the actual differential equations in real time. Entities are held together by force fields and dissolve into strange attractors when they die. Audio is synthesized from music theory, not audio files.
This is not a traditional game engine. It is a system where the math IS the visual.
Proof Editor
A visual staging environment for building scenes, placing force fields, and tweaking every parameter in real time. Built with egui on top of the engine viewport.

Download the editor: Releases page
Editor features
- Place glyphs, force fields, and entities by clicking in the viewport
- 10 force field types: Gravity, Vortex, Lorenz, Rossler, Chen, Thomas, Flow, Shockwave, and more
- Live property inspector with position, color, emission, glow sliders
- Hierarchy panel with search, filter, and collapsible tree structure
- Post-processing panel: bloom, chromatic aberration, film grain with preset buttons (Cinematic, Neon, Retro, Clean)
- Asset browser with prefab spawning (Lorenz Cluster, Vortex Ring, etc.)
- Console with command input and color-coded log
- Full undo/redo across all operations
- Save/load scenes to JSON
- Copy/paste, duplicate, box select, multi-select
Getting started
Run the editor
Download proof-editor.exe from the Releases page and double-click it.
Or build from source:
git clone https://github.com/Mattbusel/proof-engine.git
cd proof-engine/editor
cargo run --release
Run the demos
cd proof-engine
cargo run --release --example galaxy
cargo run --release --example supernova
cargo run --release --example math_rain
cargo run --release --example heartbeat
Use as a library
[]
= { = "https://github.com/Mattbusel/proof-engine.git" }
use *;
Editor controls
| Key | Action |
|---|---|
| Click viewport | Place with current tool |
| WASD / Arrows | Pan camera |
| V | Select tool |
| G | Move tool (drag to reposition) |
| P | Place glyph tool |
| F | Place force field tool |
| E | Place entity tool |
| X | Particle burst tool |
| Shift+Click | Multi-select |
| Ctrl+C / Ctrl+V | Copy / Paste |
| Ctrl+Z / Ctrl+Y | Undo / Redo |
| Ctrl+S / Ctrl+O | Save / Load |
| Ctrl+N | New scene |
| Delete | Remove selection |
| Space | Screen shake |
| F1 | Help |
Engine capabilities
Rendering: OpenGL 3.3, glyph instancing, bloom, chromatic aberration, film grain, vignette, scanlines, motion blur
Math functions: Lorenz, Rossler, Chen, Halvorsen, Aizawa, Thomas attractor integration. Sine, cosine, Perlin noise, logistic map, Collatz, golden spiral, Lissajous, Mandelbrot escape, spring-damper systems
Force fields: Gravity, vortex, electromagnetic, strange attractor, shockwave, tidal, flow, magnetic dipole. Composable with falloff (linear, inverse square, exponential, Gaussian)
Physics: 2D rigid body with SAT collision, soft body mass-spring, Eulerian fluid simulation, constraints and joints
Audio: 48kHz synthesis, ADSR envelopes, waveform oscillators, FM synthesis, music theory (scales, chords, progressions), spatial audio with stereo panning and room reverb
Entities: Amorphous glyph formations held together by force cohesion. HP-linked binding strength. Dissolve into attractors on death
Scripting: Custom bytecode VM with lexer, parser, compiler. Dynamic typing, closures, tables, metatables
Procedural generation: Tectonic plates, hydraulic/thermal erosion, climate simulation, biome classification, river networks, cave systems, settlement placement, civilization history, language generation, mythology, genetics
Ecology: Lotka-Volterra dynamics, food webs, migration, evolution, SIR disease models
Narrative: Story grammars, character motivation, dialogue generation, quest generation, drama management, NPC memory, procedural poetry
Architecture
460,000+ lines of Rust across the engine, editor, and game frontend.
| Module | Lines | Description |
|---|---|---|
| game | 28,891 | Boss AI, fluids, cloth, debris, achievements |
| render | 26,849 | OpenGL pipeline, PBR, post-FX, shader graph |
| math | 12,626 | Attractors, fields, curves, noise, springs |
| terrain | 12,505 | Heightmaps, erosion, biomes, streaming |
| physics | 9,018 | Rigid body, soft body, fluid, constraints |
| audio | 8,870 | Synth, music, effects, spatial |
| editor (engine) | 6,883 | State, inspector, hierarchy, console, gizmos |
| ecs | 7,187 | Archetype ECS, generational IDs, queries |
| scripting | 6,933 | Lexer, parser, compiler, bytecode VM |
| worldgen | 3,272 | Tectonics, climate, rivers, caves, history |
| + 45 more modules | ... | ... |
License
MIT