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I might have gone a bit over the board with these nodes (lemmy.ml)
submitted 1 month ago by to c/blender@lemmy.world
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[–] 2 points 1 month ago* (7 children)

I've built a DSL for generating geometry nodes setups from a high-level Python-like script. It is still undergoing major architectural improvements, but you can already try it out. Let me know what you think. ✌️

https://github.com/denikryt/NodeForge

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  • [–] [S] 1 point 1 month ago (5 children)

    looks nice! i wanted something more code friendly, so mine actually parses math expressions, if statements, lambda functions, loops etc and decides internally what nodes it needs to put together (hence the horrible looking node sausage). so you literally write a python logic, which it then transpiles and compiles into a node tree. in other words, you never actually have to think in nodes.

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  • [–] 2 points 1 month ago* (4 children)

    My goal was to think about nodes as functions and operations that could be described with simple Pythonic syntax. Every node is a function with positional arguments as socket inputs and a return value as a socket output. The mathematical operation nodes could be described as simple operators like + - // etc. The links between nodes are described as simple variable assignments and passing variables into functions and so on.

    Basically, the idea it to think about Geometry Nodes setup as a script and reduce the Blender API Geometry Nodes boilerplate, while keeping it possible to address a specific node when needed.

    I also put a bunch of work into the Extension API, which makes it possible to extend the functionality of the DSL with additional third-party libraries with its own defined methods and logic and use them in a familiar way.

    I'd be happy if you tried it out! 🌽

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  • [–] [S] 1 point 1 month ago (3 children)

    yep, that's the same idea! i'm happy to share the code once i clean it up a bit, and you should feel free to transfer any of the functionality. there are few features i added which i really like, such as a support for LSP and type hints in an external IDE, plus an ability to write the code outside, while the add-on auto-regenerates the node-group if a file is changed. another cool thing is you can inline functions, i.e.:

    # these two are automatically inlined (i.e., nodes added to the active group)
@inline
def foo(x: float, y: bool):
  return x**2 if y else x**3

foo = lambda x, y: x**2 if y else x**3

# while this becomes a reusable node group
def foo(x: float, y: bool):
  return x**2 if y else x**3
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  • [–] 1 point 1 month ago (2 children)

    Interesting, I'm looking forward to seeing your project! I'll note the features you've mentioned, the LSP should be a really handy one : )
    The declaring of inline functions i.e. creating nodes in the root node group is something I feel is lacking in my project right now. Would you make a post about the addon somewhere?

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