(n.) In rendering an animation, a device used in modeling that sends hypothetical light beams across a scene and that calculates visual effects and reflections from objects in the scene.
![](https://hansenmedia.net/wp-content/uploads/ray_trac.gif)
(n.) In rendering an animation, a device used in modeling that sends hypothetical light beams across a scene and that calculates visual effects and reflections from objects in the scene.