Ray Casting and Ray TracingHaving spent a lot of time on rasterizer based rendering, I've wanted to learn more about ray tracing, if only for the sake of curiosity. I also wanted to revisit ray casting, as it had been some time and I took some of the finer details for granted the first time around, so this time, I went through it with a fine toothcomb to make sure I got all of the details down. Given that the majority of speed is lost in blitting the columns to the screen in traditional ray casters, I decided to render…