High-performance habitat simulation framework written in modern C++20 with GPU-accelerated physics (OpenGL Compute Shaders) and a Dwarf Fortress-inspired 3D tile interface.
- Raylib tile-based rendering (Dwarf Fortress-style)
- Dear ImGui unified sidebar UI with DF theme
- 3D chunk-based world with Z-level navigation (Q/E keys)
- Real-time temperature, pressure, and oxygen overlays
- Click-to-lock tile inspector — left-click to examine any cell
- Camera pan/zoom controls
- Simulation pause, step, and time scale controls
- GPU Terrain Generation — Procedural noise on GPU via OpenGL Compute Shaders
- Chunk-based streaming — 64³ voxel chunks loaded around camera
- Material types — Granite, Basalt, Limestone, Soil, Water, Ores, Gases
- Geological stratification — Depth-based rock layers with thermal gradient
- Z-level rendering — Navigate vertically through underground layers
- LBM Fluids — D2Q9 lattice with BGK collision (OpenGL Compute)
- Thermal Engine — 2D heat diffusion on GPU
- Terrain Generation — Simplex noise and FBM on GPU
- Multi-species gas tracking (O₂, N₂, CO₂, H₂O, CO)
- CPU fallback for systems without OpenGL 4.3+
- Magnus-Tetens condensation/evaporation
- Lagrangian aerosol transport
- Procedural combustion model with smoke
- 3D finite difference conduction
- Stefan-Boltzmann radiation
- Enthalpy-based phase changes
- Geothermal gradient in terrain
Cardiovascular
- Windkessel circulation, Frank-Starling, HRV
- Coagulation cascade (intrinsic/extrinsic pathways)
Respiratory
- Hill equation hemoglobin, alveolar gas exchange
- V/Q mismatch, dead space, work of breathing
Other Systems
- Metabolic: ATP/glycogen, substrate utilization
- Blood Chemistry: Henderson-Hasselbalch, electrolytes
- Thermoregulation: Heat balance, sweating, shivering
mkdir build; cd build
cmake ..
cmake --build . --config Release
.\Release\isolated.exe# Dependencies (Ubuntu)
sudo apt install libeigen3-dev libfmt-dev libomp-dev cmake
# Build
mkdir build && cd build
cmake -DCMAKE_BUILD_TYPE=Release ..
make -j$(nproc)
# Run
./isolated- Raylib 5.5 — Graphics
- Dear ImGui (docking branch) — UI
- rlImGui — Raylib/ImGui binding
- Eigen3 — Linear algebra
- fmt — String formatting
- OpenMP — CPU parallelization
- OpenGL 4.3+ — GPU Compute Shaders
| Key | Action |
|---|---|
| WASD / Arrows | Pan camera |
| Mouse Wheel | Zoom |
| Q / E | Z-level down/up |
| Left Click | Lock tile inspector to cell |
| Right Click | Unlock tile inspector |
| 1 / 2 / 3 / 0 | Toggle overlay (Pressure/Temp/O2/None) |
| Space | Pause/Resume simulation |
| +/- | Adjust time scale |
| F3 | Toggle event log |
┌─────────────────┐ ┌─────────────────┐ ┌─────────────────┐
│ GPU (Compute) │ │ CPU (OpenMP) │ │ Renderer │
├─────────────────┤ ├─────────────────┤ ├─────────────────┤
│ LBM Fluids │◄───►│ ChunkManager │◄───►│ Raylib Tiles │
│ Thermal │ │ Biology Systems │ │ ImGui Sidebar │
│ Terrain Gen │ │ Entity System │ │ Overlays │
└─────────────────┘ └─────────────────┘ └─────────────────┘
See ROADMAP.md for the complete development plan including:
- Massive world scaling (10,000 × 10,000 × 150)
- Advanced terrain (erosion, caves, rivers)
- Chunk-based physics synchronization
- Astronaut AI (Utility AI → GOAP)
MIT