Epic Games' Unreal Engine 4 has been used to create stunning realistic environments.
Unreal Engine forum user koola has created some ultra-realistic settings using the kit, and it's all rather impressive.
You won't find any fantastical video game-style characters or environments here, just the pure ambition to capture the essence of realism. Take a look at the videos below. Thanks, PC Gamer.
If you liked these, you should take a look at the rest of koola's videos over on his YouTube Channel.
Could you tell these videos were computer generated if we didn't tell you?