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Hacker News·3 min read·hard

Ray Tracer in SQL

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Ray Tracer in SQL
✦AI Summary

A developer has created a functional path tracer using only ClickHouse SQL queries, rendering complex 3D graphics without external code or user-defined functions. The project demonstrates advanced mathematical rendering techniques implemented entirely within a database query language.

Why it matters

This project showcases the extreme flexibility and computational power of modern analytical databases, pushing the boundaries of what SQL is typically used for.

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A path tracer written entirely as ClickHouse SQL queries , rendering straight to a PNG via ClickHouse's PNG output format. No UDFs and no external code — a single SELECT computes every pixel.

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Confidence: 95%

The content is a technical showcase of software engineering and has no political or social bias.

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