• near 2.6 Schwarzschild Radius
  • 200 photons girid from 0 to 6.5 Schwarzschild Radius
  • 100 photons with animation n
  • 500 photons girid from 0 to 6.5 Schwarzschild Radius
  • 0 ~ 2.6 ~ 6.5 Schwarzschild Radius (different color)