Harold Serrano
Harold Serrano is an AI Coding YouTube channel with 2.3K subscribers. As of August 2026, it has published 172 videos with 164.2K total views (~115 per video), and a 6.96% engagement rate — top 4% of AI Coding educators.
I’m Harold — a rendering engineer building a custom game engine from the ground up using Metal. This channel is where I break down how real-time renderers work — not just in theory, but in code. You’ll learn how engines manage rendering pipelines, build frame graphs, sort draw calls, and submit commands to the GPU — all while seeing it happen live inside my engine. Whether you're a graphics programmer, engine enthusiast, or just curious about how a frame really gets drawn, you’ll find deep, v
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Harold Serrano (@haroldserrano) is a ai coding YouTube channel with 2.3K subscribers. With 172 videos and 164.2K total views, the channel averages 115 views per video. Harold Serrano has an engagement rate of 6.96%, placing it in the top 4% of ai coding educators on the platform. The channel uploads on a weekly basis, making it a moderate creator in the developer education space.