Raytracing is a method for rendering images that does this in reverse, for each pixel in the image we shoot a light ray out of a point at a different angle. By calculating what that ray intersects with we can decide how to colour that pixel.
-In non-relativistic settings these rays are just straight lines, maybe bouncing off surfaces sometimes, but in GR we need to calculate the full geodesic of the ray. By doing this we will be able to produce simple schematic images of the distortions created by a black hole.
-The coding¶
In this problem set we're going to be working towards raycasting these schematic images of a Schwarzchild black hole.
-The code will become a little involved as we work towards the payoff but I've tried to break it down into maneagble chunks.
-If you get stuck, I've provided some hints with the idea that you should check them one at a time, and between each give yourself some time to try to arrive at the solution. It's likely that everyone will get a bit stuck at some point along the way so it's ok to sometimes take a peak at the answer to the part you're stuck on.
-Once you're done with a question, check the answer before moving onto the next part.
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