Ray Tracing in 5 minutes: Part 3 -- recursive ray tracing

Equivalent to a 50 minute university lecture on Ray Tracing. Part 3 of 3.
Part 1: • Ray Tracing in 5 minutes
0:00 - intro
0:09 - distance attenuation
0:49 - ambient reflection
0:56 - emission
1:02 - Blinn-Phong illumination Model
1:19 - TraceImage function
2:08 - reflection rays
3:15 - refraction rays
4:37 - total internal reflection
5:44 - stepping through a ray tracer
Graphics in 5 minutes is a series of cartoon-style videos that teach computer graphics in 10x less time. You can take the equivalent of a University level computer graphics course in just over two hours. The playlist is here:
• Graphics in 5 minutes ...
See here for more information: g5m.cs.washington.edu/

[@tolkunovart]

I've watched a bunch of different videos about Ray Tracing and Path Tracing and they all say that the rays fly out of the camera and reflect off the surface, the difference is that in Path Tracing many rays will reflect in random directions, while in Ray Tracing a single ray will reflect and fly directly to the light source. This raised a lot of questions in my mind, how do reflections, shadows, transparent materials, etc. work in Ray Tracing, but no one in their videos even thinks about it, they just reflect a ray once and that's it. I finally found this video that explained literally everything and answered all my questions, it's literally a diamond for me, thank you

[@ireoluwaTH]

This channel will absolutely age well...

[@bugra7097]

hats off.

[@psplus6438]

Top level explanation

[@bimDe2024]

hats off