Quake code can be found in Valve games 24 years later

Sometimes developers find a good solution that sticks and is used for years in numerous projects

A post by AliYil caught the attention of the Half-Life community. The user compared the light flickering pattern from the original Half-Life with Half-Life: Alyx.

As it turned out, Valve used the exact same solution. 22 years have passed between the releases.

JoeyCheerio noted that this solution is a bit older. He showed that this light flicker pattern was introduced earlier in the legendary shooter Quake (1996). It turns out that 24 years later, a piece of the original Quake still lives in Valve games.

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