Ray system

A ray is like a line that starts from a point and goes on forever in a particular direction. A ray system is like a whole bunch of these lines that move around in different ways.

Picture a big tree in the middle of a field. Now imagine that the sun is shining down and creating rays of light that come through the branches of the tree. These rays can bend and bounce off things, creating shadows and patterns on the ground.

A ray system works the same way, but instead of using a tree and the sun, it uses computer programs to create rays of light. These rays can help make 3D images look more realistic, by creating shadows and reflections that make things look more like they do in the real world.

To make a ray system work, programmers have to use math and physics to figure out how the rays interact with objects in the virtual world. They have to calculate things like how much light is absorbed by different materials, and how the rays bounce off different surfaces.

It's sort of like playing a game of pool, where you have to figure out how the balls will bounce off the sides and hit each other. But instead of balls, there are rays of light, and instead of a pool table, there's a virtual world.

Overall, a ray system is an important tool for creating more realistic and lifelike images in video games, movies, and other computer-generated media.