Here's How:
1. Import a new copy of the Model.
When you copy an object such as one of your Imported Models using the shortcut keys ALT+ Move, the newly copied model will be a duplicate of the original.
Changes to the materials of one of the models will also change the other model. It will not be a unique object.
If you want to have the same model, but with different Materials, then here is the workflow:
1. Save a Material Set from the original Imported Model.
2. Import the same model, it will need a different Imported Model name.
3. Load the Material Set from step 1 if you want to use those as a starting point for your materials.
From this point the model in step 2 is unique. It will still use the same source 3D model file reference for Re-Importing. And, you can change the materials for either model independent of the other.
2. Use Variations - Lumion 12 or newer
You can use the Variations feature to import a new model file or duplicate and create a unique copy of an Imported Model.
In Lumion 12, this feature was changed and the process of adding a Variation is a bit different than in previous versions:
2.1: Select a model that is going to have a Variation.
2.2: Click on Add Variation.
2.3: The Create model variation window opens. Enter a Variation/model name and click the tick button to accept.
2.4: The Variation is made. The result: a unique copy of the model.
2.5: If you then want the Variation to be a different model, use the Alt + Re-Import button for Re-Import model from new File.
3. Use Variations - Lumion 8 to 11
3.1: Select a model that is going to have a Variation.
3.2: Click on the Import New Variation button. This then asks for the model file to be imported.
3.3: Choose the same model file and set a new name.
The Variation is then added.
See Also:
- Knowledge Base: How do you copy, paste, save and load Materials in Lumion 12 and newer versions?
- Knowledge Base: How do you copy, paste, save and load materials in Lumion 10 and 11?
- Knowledge Base: Import & Export Questions: Model Import Guidelines