Varjo

Supports Common Lisp macros like defmacro and define-compiler-macro, allowing shader logic to be abstracted and reused, as highlighted in the features list for expressive GPU programming.

Enforces type checking both within and across shader stages, with rolling translation that automatically passes variables between stages, reducing errors in complex graphics pipelines.

Allows defstruct to be used across multiple shaders, minimizing code duplication and ensuring consistency in data structures, as noted in the README to reduce repeated code.

Designed without OpenGL dependencies for easy integration into projects like CEPL, and has an API for extension, though the README mentions it's still in progress.