I am not an Lisp user at the moment, but I worked on a project before with NAG IRIS Explorer, which is a scientific data visualization tool. The scripting langu

I am not an Lisp user at the moment, but I worked on a project before with NAG IRIS Explorer, which is a scientific data visualization tool. The scripting language in the system is scheme based around 1993. (I think it is a dialect of scheme that is closed to GNU Guile). I think scheme/lisp is used inside a lot of big systems, such as AutoCAD, Emacs, IRIS Explorer and probably more. One of computer graphic pioneers Ken Perlin wrote a shading language for his own renderer in scheme. But unless you use his renderer, you will never know he put a scheme interpreter inside to process his shading language.