Hi everyone,
I’m looking to optimize my workflow for bringing infrastructure models from Autodesk Civil 3D into Twinmotion, using Autodesk InfraWorks as an interme
diate step to apply all my materials, texturing, and asset/vegetation decoration before the final export.
Currently, I model my roads, curbs, and sidewalks in Civil 3D. To create vertical changes (slopes, curb heights), I often use offset lines and elevation differences to create a TIN surface.
However, I am running into two major bottlenecks when moving this data to Twinmotion:
- Jagged/Faceted curves: Due to Civil 3D’s standard TIN triangulation along curves with vertical changes, the edges look jagged and faceted in Twinmotion. Even tweaking the Mid-Ordinate Distance doesn’t fully solve the ugly diagonal triangulation.
- Stretched/Distorted textures: Because a curb has a high vertical rise over a very narrow horizontal offset, Twinmotion’s default planar/box mapping stretches the concrete/brick textures vertically, making it look distorted along the curb face.
I have access to Civil 3D, InfraWorks, Revit, SketchUp, Blender (for mesh correction/UV unwrapping), and Twinmotion.
My questions to the pro’s here:
- For those working with heavy Civil 3D infrastructure designs, what is your go-to workflow to achieve smooth, high-resolution curved solids for visual renders?
- Do you rely heavily on Civil 3D Corridors with high frequency settings, or do you clean up/remodel the raw geometry in software like SketchUp, Revit, or Blender before importing it into Twinmotion?
- Are there any smart plugins or Datasmith workflows between Revit/SketchUp and Twinmotion that handle infrastructure mapping (curb faces) better?
- If you use InfraWorks as an intermediate step to set up the environment, how do you handle the import/export to keep the UV mapping intact for complex curbs?
Any tips, workflows, or plugin recommendations would be highly appreciated!
Thanks in advance!
Tim
