Blackhole Sim

A real-time GPU-accelerated black hole simulation using C++20 with Metal ray tracing and accurate physics equations. Features gravitational lensing, volumetric accretion disk rendering, and cinematic camera movements. Features: • GPU Accelerated: Real-time Metal compute shader ray tracing for maximum performance • Dynamic Resolution: Renders at any window size, adapts to screen resolution (144p to 8K) • Fullscreen Support: Toggle fullscreen mode with F key • Accurate Physics: Schwarzschild metric geodesic integration using RK4 (Runge-Kutta 4th order) • Gravitational Lensing: Light rays bend according to general relativity equations • Doppler Effect: Relativistic Doppler beaming with blueshift/redshift for orbiting accretion disk material • Volumetric Rendering: Realistic accretion disk with white-hot temperature gradients • Cinematic Camera: 5 cinematic modes including smooth orbit, wave motion, rising spiral, and close fly-by • Video Recording: Record high-quality videos with Command+R (H.264 encoding) • Real-time Performance: 30+ FPS at any resolution on Apple Silicon Controls: • F: Toggle fullscreen • +/-: Change resolution • C: Cycle camera modes • IJKL: Rotate camera view • Cmd+R: Start video recording • ESC/Q: Quit Requires macOS 11.0 or later with Metal GPU support.