Yes, it is.
The VisualARQ walls created in the model with the _vaWall command , or from curves , are always created vertically and have a regular height and width.
However, there are different ways to create walls with irregular shapes:
- Wall from Solid: Option to turn Rhino polysurfaces into VisualARQ walls.
- Wall Add and Subtract Solids: Boolean operations between Rhino Solids and VisualARQ walls. (See this Tip for more information)
- Wall Extend to Surface: Option to extend walls vertically to any kind of open surface, polysurface or VisualARQ object (slab, roof, stair, etc...)
Read more information here.