You can create multiplatform lessons one of two ways. Manually setting the platform specific models within the editor or using a unity source project. These two methods will ensure that when your project is exported to a specific platform it will contain a compatible model.
After using the Portal to create a project and start a new lesson, create a separate folder for each platform you will create the lesson for. Right-click in the assets tab and select create folder.
Import the correct models into these folders. (ex. PC version of the model into the folder you called PC)
Press F3 on the keyboard to bring up the model platform properties.
Drag the models from the folders you created into their matching model reference slot. (ex. Drag imported PC model into the PC Model Asset reference slot) Now when you export your lesson to a specific platform it will use the model you are referencing for that platform.
In order to create a lesson that will be compatible with multiple platforms we can also provide xplorer with a platform neutral model. We can do this by using a Unity project.
Go to https://unity3d.com/unity/qa/lts-releases to download the latest 2017 Unity LTS version.
Create a project through the Portal, open a new Lesson.
Create a folder by right-clicking in the assets tab and clicking Create Folder. Name the folder “UnityFolder” (name does not matter).
Right-click on assets tab and select refresh to see your folder. Click on the folder name.
In the properties panel right-click on the “import using ‘ProjectFolder’” property and select Unity.
Deselect the folder by clicking a blank space in the assets panel. Wait for it to finish processing. Close out the lesson. No need to save anything.
Open the unity project that you will be using the model from, copy all the files in the assets folder into the UnityFolder you just created.
Switching back over to the Portal open a new lesson in that project again.
Expand the UnityFolder in the assets tab and drag the model you wish to use into the viewport.
This project is now ready for export on any platform.
Note: The asset pipeline will take a while to process the unity project. Wait for it to fully complete.