Real-time raytracing

Raytracing is like drawing a picture. Real-time raytracing is like drawing a picture in real life, where you can change the picture while you're drawing it. Raytracing is when a computer follows a "ray" of light, like a laser beam, to figure out where the light should be and what color it should be. Real-time raytracing is when a computer does this very quickly, so it can change the picture very quickly. This can be used in video games and movies to make the pictures or videos look more realistic.