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How do you reduce the complexity of a model before importing it in Lumion?

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Morten Warner-Fog
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1. Here's how

If you try to import a model that is too detailed for your computer, it might take a long time to finish the import process.

To speed up the import process, we recommend the following steps:

1.1: Hide surfaces that are unimportant in your 3D/CAD software before importing the model in Lumion.

1.2: Export the model via LiveSync rather than via .DAE format as it is faster and requires fewer resources.

1.3: Consider splitting up the model in several parts and import them as separate models in Lumion.

1.4: SketchUp

  • Skimp: This tool reduces the detail level (polygon count) of your model and includes an importer with a texture placement material remap tool.
  • Material Resizer: This tool checks the material texture sizes in your model and allows you to quickly resize them.
  • CleanUp3: This tool cleans up and optimizes your SketchUp model.

1.5: Revit

  • The Surface Smoothing slider lets you define how detailed curvy surfaces should be.
  • Setting it to the maximum value can have a serious impact on the time it takes to import the model as well as on performance and render speeds in Lumion.
  • For that reason, we recommend setting the slider to the lowest possible value that still ensures that curvy objects look reasonably smooth.

1.6: Rhino

  • Use the Density setting to reduce the smoothness of curvy models before exporting them to Lumion:
  • Rhino top menu -> File -> Properties -> Mesh -> Custom -> Density -> 0.0
  • There is more information on the following page:
  • External Link: Rhino Mesh Settings

1.7: 3ds Max

  • Use the ProOptimizer modifier in 3ds Max to reduce the detail level of curvy models before exporting them to Lumion.