SittaDesign - CAD Bridge: DXF Splines Importer/Exporter

CAD Bridge is the missing link between your CAD software and Unreal Engine. Drop a DXF file into the Content Browser and get editable spline actors and reusable assets with colors, layers, and hierarchy intact. Export modified splines back to DXF for round-trip workflows.

Supported DXF Entities
LINE, ARC, CIRCLE, LWPOLYLINE, POLYLINE, SPLINE (full NURBS), and POINT

Import Features

  • Layer-based filtering with checkbox UI — import only the layers you need

  • Three import modes: Actors Only, Assets Only, or Both (Blueprint assets + level actors)

  • DXF color retention — ACI palette, 24-bit RGB, and BYLAYER inheritance

  • Automatic unit scaling from DXF $INSUNITS (inches, mm, metres)

  • Organized Outliner hierarchy grouped by DXF layer

Export Features

  • Export selected spline actors back to DXF format

  • Point actors exported as DXF POINT entities

  • Automatic coordinate system conversion (UE left-handed to DXF right-handed)

Built-in Spline Tools

  • Explode: split multi-segment splines into individual actors

  • Join: merge connected splines back into continuous curves

  • Center Pivot: reposition actor origin to spline bounding box center

Randomization Tools

  • Sub-select by percentage

  • Random scale, rotation, and offset within configurable ranges

Designed for architectural visualization and animation workflows.