Here is a good video by Digital Foundry looking at Metro Exodus Enhanced edition with devtools. Where they show what raytracing is and how it differs from regul

Here is a good video by Digital Foundry looking at Metro Exodus Enhanced edition with devtools. Where they show what raytracing is and how it differs from regular lighting. https://youtu.be/NbpZCSf4_Yk https://youtu.be/NbpZCSf4_Yk simplified tldr: with raytracing you build the environment, designate which parts (like sun, lamps) emit light and you are done. With regular an artist has to spend hours to days adding many fake lightsources to get same result.