The Ray Tracer Challenge This book challenges you to build a Whitted-style ray tracer from scratch. Unlike many tutorials, it doesn't provide code and follows a unique test-first approach, describing only test specifications and algorithms.
As these teams emerged for kick-off, the Holte End displayed a tifo proudly flaunting Aston Villa’s deck of cards, chiefly an ace of clubs. By the end, however, their upper hand in the race for the Champions League felt rather hollow, if not diminished. Chelsea had dismantled Unai Emery’s side to move within three points of Villa, João Pedro scoring a hat-trick to take his tally to 17 goals for the season.
，这一点在17c 一起草官网中也有详细论述
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