Real-time black hole simulation in C++ and OpenGL, GPU ray marching with Schwarzschild geodesics, gravitational lensing, accretion disk with Doppler beaming, and interactive 2D/3D visualization.

WebGL2** and locally-vendored Three.js (used for math, camera & OrbitControls). No black-circle sprites, no textures, no videos: every pixel is produced by integrating the null geodesic ODE in the ...

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