This example shows a node-based procedural geometry editor that generates primitive meshes and combines them into model groups. It uses the XNode framework to define a graph where a `Primitive` node creates dodecahedra, octahedra, or cubes via the ProceduralToolkit `MeshDraft` API, while a `RandomPrimitive` node supplies the primitive type. The `Primitive` node reads inputs for primitive type, radius, and material, then outputs a `ModelGroup` containing a single `Model` with an assigned material. The graph structure is visible in how node ports connect inputs and outputs, demonstrating how procedural mesh generation can be controlled through a visual scripting system.