All I can say is... finally. I'm not the type of person who demands the best graphics out there for every game, but there's no denying that Source 1 is getting a little long in the tooth.
http://lambdageneration.com/posts/g...at-a-next-gen-valve-engine-is-in-development/
http://lambdageneration.com/posts/g...at-a-next-gen-valve-engine-is-in-development/