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NVIDIA RTX Quake 2 demo features a version of the game that includes real-time ray traced global illumination and reflections, dynamic direct and indirect lighting effects, mimicked physical material light reflection properties, and volumetric lighting effects. One major change that would seem insignificant to gamers raised with more modern gaming experiences is that these changes allow the realistic experience of glass in one of the Quake 2 maps. In the original game, glass looked like a transparent piece of plastic, but the new tech gives it its reflective properties and realistic appearance.