Valve Source 2 Engine Rumored to Receive Ray Tracing/RTX Support Jan 14, 2021 18:18 EST Valve's Source 2 engine could potentially receive RTX/ray tracing support, if a recent rumor happens to come to light. Twitter user Pavel Djundik (@thexpaw) took to the social network with a savvy finding: the last Artifact beta received "Raytracing Shader" and "RTX" strings, archived via GitHub. While there are no additional pieces of evidence to support the idea that ray tracing is indeed coming to the engine, the mere idea is enough to get fans exciting and buzzing about its potential applications. Imagining Half-Life or Half-Life 2 with ray tracing might just be the healing salve we all need to remind us that Half-Life 3 is probably never going to happen, after all, and they could be just around the corner if this rumor is to be believed.