Once your Mesh is textured, weighted, and has all the necessary Nodes Linked properly, it is time to start Exporting your Assets for the Create Mode Editor. It is important to always Export your Skeleton file first, since so many other Exported files depend on your Skeleton file for their Export to work properly. The Skeleton exports to a .XSF file suffix, which you will need to type in manually.
To start, select the Root or Skeleton Node in your model, making sure that no other elements are selected. In the case of Furniture or Room products, your Export will look something like this. Meshes will appear outside the Skeleton hierarchy so you normally don't need to worry about them, with the exception of Placeholder Avatar Meshes, which is important that you UNCHECK before Exporting.
Here are the steps to Export:
1) Select AttachmentRoot. Choose Export in the file menu. Scroll down to the .xsf file format, name your Skeleton, click save and hit next/finish until there are no more Cal3D windows visible.
3) NOW select nothing, choose Export, scroll to the .xrf file format, name your Material file, choose the Material you named earlier (example: Glasses ) and click next/finish until there are no Cal3D windows visible. You need to repeat step 3 for every Materials in your Multi-Sub. This means that for every Material you want to actually have show up in IMVU, you need a corresponding .xrf, or Material, file.
Choose Export in the file menu. Scroll down to the .xsf file format, name your Skeleton and remember to manually type the .xsf at the end of the name, and click next. The Cal3D Skeleton Export window appears. Within this window, you will see every Asset in your scene that lives within the hierarchy of the Master Skeleton Node sitting beside a checkbox and an icon. The icons are more or less meaningless to this process but the checkboxes are relevant. Anything that has an actual checked box beside it is Exported within the Skeleton file. Click Finish to complete the Export process. Woohoo! You have just Exported a Skeleton file for your Accessory.
VERY IMPORTANT NOTE
Every time Bones are added to or deleted from the Skeleton and the Skeleton file is re-Exported and reloaded into the Create Mode Editor , all of the Assets that referred to the old Skeleton need to be re-Exported and reloaded. This is because your Skeleton file is the base on which everything else hinges. Once the Skeleton is changed, all of the other Assets are now referencing a Skeleton that no longer exists and your product will no longer work. Your Material files do not refer to the Skeleton file and therefore do not need to be re-Exported.