Hacker News (AI keywords)Jun 15, 2026, 9:34 AMmartiano

Show HN: C++ Ray Tracer Written from Scratch Without AI

Original: Show HN: I wrote a C++ ray tracer from scratch without AI

A developer published a handcrafted C++ ray tracer on GitHub, deliberately avoiding all AI coding assistance.

In a deliberate counter to the prevailing AI-assisted development trend, a developer built and open-sourced a full C++ ray tracer without any AI tool involvement. Posted to Hacker News as a "Show HN," the project invites discussion about the value of deep, first-principles engineering work. The submission implicitly challenges assumptions about whether AI assistance is now a default — or even necessary — part of serious software projects.

A developer posted to Hacker News under the "Show HN" banner to share a C++ ray tracer built entirely from scratch and without the use of any AI coding tools. The project is hosted publicly on GitHub at github.com/themartiano/luz. With no article body available, analysis is necessarily inferred from the title and the context of its framing — but that framing is itself the story.

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