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trace itself. Timing a ray-tracing of scratchapixel’s sample scene (seen at the top of this article) shows: real 0m1.701s user 0m1.602s sys 0m0.061s So there’s the benchmark to beat: 1.7 seconds to ray-trace a 2048 x 1536 image- roughly 3.1 million pixels. Thanks to Menumeters I can observe what my