Source Engine

Could ray-tracing be on the way for Source 2 games like Half-Life: Alyx?

Code from a recent Artifact beta update suggests Valve may be playing around with ray-tracing and RTX rendering in the Source 2 engine.

Source SDK to be made free for all

Valve has decided to make its Source SDK free for all users, rather than require at least one Source title be purchased to obtain access to the engine.