> This is a raytracing engine contained in a single Mysql SELECT statement. In the beginning of the code there are a few parameters that can be modified. The scene can be specified using the @triangles and @squares parameters, but everything is explained in the comments. The whole query returns a bitmap file which can be written to the filesystem using the "INTO DUMPFILE" syntax at the end of the query, if mysql has filesystem write permissions.

> The raytracer supports shadows and reflections, which makes it, to my knowledge, the most advanced MySQL raytracer on the market right now.

https://demozoo.org/productions/268459/info/2923/