[leguminous]

I was using Taichi recently to prototype some fragment shaders (I just mocked out texelFetch, texture, etc and wrote a for loop over each pixel). I found it convenient to be able to run on the CPU and also not have to deal with any OpenGL or Vulkan setup.

One thing that was frustrating was that I couldn't template a function with another function (as far as I know). That lead to some copied and pasted code when I had multiple implementations that I wanted to compare. Can Metashade do that?

[ppenenko]

Agreed that the ability to just run on the CPU is valuable. Metashade doesn't support that yet and its codegen syntax doesn't look like regular Python code (everything codegen-related is prefixed with `sh.` etc.) but it's certainly possible to write a generator that would just execute the code "in the immediate mode" or generate C/C++ code for the CPU.

Regarding templating functions with functions - in Metashade you can just specialize the generated code however you see fit, with Python as the meta language. E.g. Python's `if` statements can act like `#ifdef`s or `if constexpr`, and you can certainly pass around callables to parameterize behavior.