ArchiCAD-Style Architectural Modeling Directly in the Unreal Editor

Development Architectural and Design Visualization
1

I’ve been working on a broader real-time architectural workflow inside Unreal Engine, inspired by tools like ArchiCAD.

At the current stage it includes:

  • parametric walls
  • dynamic openings
  • basic wall intersections
  • stable UVs during editing

The goal is to build more of the architectural workflow directly inside Unreal, instead of relying only on external modeling tools.

Here are two short clips:

I’d really appreciate feedback from Unreal developers and archviz people.
Does this direction seem useful or interesting to you?

Thanks!

2

I’m really biased, but I love it. I think GeometryScript is super underrated. I help lots of AEC users with their UE projects and we all wish they had more native tools for some of the simple things like this.

3

Thank you for the positive feedback — I was honestly starting to feel like what I’m doing is pointless.

For many years I’ve wondered why tools like 3ds Max, Blender, or Unreal don’t have functionality like this, so I decided to build one for my own use. It turned out that seemingly simple things like cutting an opening in a wall or joining two walls are actually very complex.

I’ve spent about a year and a half learning C++, linear algebra, and computational geometry. But the biggest challenge wasn’t the math — it was actually wiring everything together inside Unreal.

At the moment I have a parametric wall system with openings, stable UVs, and basic wall-to-wall intersection working. Right now I’m building a graph system similar to Archicad that will keep track of all walls on a level. After that, I plan to implement procedural windows and doors that adapt automatically to the openings.