Sketch
Rough out massing by hand or from a reference. Catalyst turns the intent into a starting model.
Start from a sketch, author the design in code, and Catalyst carries it the whole way: a live model, coordinated drawings, jurisdiction checks, and exports that are ready to build.
Every stage reads the same parametric model, so a change to the design flows through the drawings, the quantities, and the compliance checks at once.
Rough out massing by hand or from a reference. Catalyst turns the intent into a starting model.
Express the design as C#: parameters, logic, and reusable parts instead of hand-drawn geometry.
Run it and the building appears in 3D. Adjust a parameter and the model rebuilds instantly.
Plans, elevations, sections, and schedules generate from the model and stay coordinated.
Check the design against jurisdiction rules and a live checklist as you go, not at the end.
Hand off IFC, glTF, and PDF sheets. The whole model travels, not a flattened snapshot.