Ray Tracer in SQL

by kbumsik • 21 days ago

58 22 21 days ago

cma256• 21 days ago

Very cool project. Next they should create a database with SQL. Querying my database's database with my database's SQL's SQL would be trippy.

nickpeterson• 21 days ago

SQL in SQL has never occurred to me.

Jgoauh• 21 days ago

Nice, but why ?

jareklupinski• 21 days ago

sir... this is hacker news

__alexs• 21 days ago

Good stress test for your SQL parser I guess.

srean• 21 days ago

To know that it can be done.

zX41ZdbW3• 20 days ago

It is needed to find bottlenecks in the engine and optimize customer queries. For example, it gives things like: https://github.com/ClickHouse/ClickHouse/pull/108757

You can read more about this approach in my presentation: https://presentations.clickhouse.com/2026-openhouse-sf/great... and video: https://www.youtube.com/watch?v=FmS7VopaqNg

jaymee• 20 days ago

Why not?

laszlokorte• 21 days ago

Very cool! I did a similar (but much simpler!) experiment by implementing perspective projection via SQL, storing meshes (vertices, edges, faces), the camera position and the screen size in tables and building a single query that generates the SVG paths (including backface culling). Running via WASM SQlite inside the web browser. [1]

  SELECT project(...) as x, project(...) as y 
  FROM model, vertex, camera, transform 
  WHERE clockwise AND clipped IN BETWEEN -1 AND 1

[1]: https://static.laszlokorte.de/sql3d/

agustechbro• 21 days ago

In the Age of AI coding, this lovely cool demos are no longer interesting anymore. I use to appreciate them by the craftsmanship and hacking aptitude they required, but now AI took away that joy of watch this for me.

tills132• 21 days ago

Yeah. Remember when that guy made Doom in TypeScript types? That was incredible. This feels shallow and dull. Interesting idea and cool that ClickHouse -- a primarily human made piece of software -- can even do this but I agree it no longer does it for me.

malgamves• 20 days ago

Do you really think AI can make Doom in TypeScript types?

sublinear• 21 days ago

That feeling has nothing to do with AI. That's how art has always been. Most of these were bad at being art even before AI.

A good reference for exactly what I mean would be the demoscene (both back then and now). You can watch a thousand of those and be totally underwhelmed, but every now and then you get one that totally blows your mind.

There's nothing wrong with seeking novelty, but there is something wrong being jaded about it.

Moosdijk• 21 days ago

Who are you replying to?

bigmadshoe• 21 days ago

Absolutely. These things are inherently pointless - what makes them cool is the human ingenuity required to achieve them. Remove that and it’s totally uninteresting.

pjmlp• 21 days ago

Indeed, I am just waiting for the last drop, when AI tooling becomes good enough for handling machine code directly.

Note that a lot of programming can already be done via orchestration flows calling into mcp tools (replacing classical microservices).

All the no code/low code tools have migrated into it as their evolution.

zX41ZdbW3• 20 days ago

Coding with AI is not much different from coding without AI, just faster and with slightly less typing. But you still have to organize the work and split it into small items. If you ask a model to implement a ray tracer in SQL, it can do something one-shot, but it won't be as satisfactory as with an engineer.

mghackerlady• 21 days ago

Look, I love a good hack, but just. No. Why would you ever want to do this. The intersection of skill and masochism needed for this shouldn't exist and yet it does

JSR_FDED• 21 days ago

How do I join this awesome project?

mmmlinux• 21 days ago

I love all the "But Why?!?" and "It's LLM so it doesn't count" comments.

zX41ZdbW3• 20 days ago

It is needed to find bottlenecks in the engine and optimize customer queries. For example, it gives things like: https://github.com/ClickHouse/ClickHouse/pull/108757

You can read more about this approach in my presentation: https://presentations.clickhouse.com/2026-openhouse-sf/great... and video: https://www.youtube.com/watch?v=FmS7VopaqNg

Ray Tracer in SQL

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