Ignis Divinus
Divine Fire Simulation
Chenyang Zhang
Fluid Dynamics
Huachen Qu
Volume Rendering
Muze Du
Visual Effects
Yijun Xiang
GPU Optimization
The Challenge
Why Fire Simulation Matters
Project Motivation
- Fire is one of the most visually complex natural phenomena
- Critical for games, movies, and VR experiences
- Requires solving Navier-Stokes equations in real-time
- Balancing physical accuracy with performance
Our Starting Point
- Basic 2D fluid simulation framework
- Extended to 3D with Taichi GPU acceleration
- Added volumetric rendering pipeline
- Implemented physically-based combustion model
Live Demo
See It In Action!
Main Demo
What Makes This Special?
- Real-time interaction with wind forces
- Physically accurate buoyancy and turbulence
- Cinematic quality volumetric rendering
- Dynamic color based on temperature
- Explosive bursts and dramatic effects
Technical Innovation
Our Implementation Pipeline
3D Grid
96³ voxels
Fluid Solver
Semi-Lagrangian
Combustion
Fuel + Heat Model
Rendering
Ray Marching
Post-FX
Bloom + Refraction
GPU Acceleration
Taichi kernels for parallel computation achieving 10x speedup
Blackbody Radiation
Temperature-to-color mapping (800K-3000K) for realistic flames
Vorticity Confinement
Enhanced turbulence for more dynamic and realistic motion
Interactive Features
Real-time Control Capabilities
Wind Interaction
Real-time directional wind control with adjustable force
Dynamic Colors
Temperature-based color variations from cool to white-hot
Visual Effects
Advanced Rendering Features
Explosive Bursts
Dramatic combustion effects with particle systems
Artistic Creation
Cinematic explosion effects for creative expression
Lessons Learned
Our Journey & Achievements
Technical Excellence
Successfully implemented complex fluid dynamics with GPU acceleration
Visual Impact
Achieved cinematic quality fire rendering in real-time
Team Collaboration
Effective division of expertise led to a polished final product
Thank You!
We're proud to present Ignis Divinus - where physics meets art in real-time fire simulation
Special thanks to our amazing team for making this divine fire come to life! 🔥