If it's anything like the demos we've already seen at GDC this week, I wouldn't get my hopes up too high for this being something most people will be able to fully enjoy until years from now.
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During a GDC 2018 tech demo of Metro Exodus, developer 4A Games said that it will be the first game to make use of Nvidia's new RTX real-time ray tracing technology.
If it's anything like the demos we've already seen at GDC this week, I wouldn't get my hopes up too high for this being something most people will be able to fully enjoy until years from now.