A node-based procedural tool for designing 3D volumes — think Substance Designer, but the canvas is a cube of space instead of a flat texture. It runs inside SD's Python environment.
The core idea: make 3D position itself the native variable. Where SD samples a 2D plane, here every node evaluates across a volume, so SDFs, 3D implicit functions, and density fields can all be authored procedurally. It natively supports functions, loops, and feedback loops, and any graph can be saved as a reusable subgraph — so new nodes are things you build, not just things you're given.
There are two representations: the raw volume, and its isosurface. Isosurfaces export to STL — so a procedural field becomes a real object you can 3D print (photos below).
I've always loved building 2D shapes in Substance Designer. This is that same joy, in full 3D.