Thanks I'll have a look. I think I understand your point about how spatial distance doesn't work the same below the event horizon. I'm going to think about this more later because it's late where I am.
Yes, I just fixed it.
Hmm that could be the case. Anyways every time I've tried tracing the light ray past the event horizon it always spirals into the origin. But maybe the actual path it's computing is not correct? The Schwarzschild metric in terms of Schwarzschild coordinates is still...
My project for obtaining my master's degree in computer science involved ray tracing in Schwarzschild spacetime in order to render images of black holes. These light rays had to be computed numerically using the geodesic equation. However, I ran into a problem. The geodesic equation is given as...