As we have already said, designing to Henshin need special AutoCAD solids.

These solids had their insertion point in their gravity center. And they have three properties to set the different rotations (X, Y, Z)

As there are different building types (boxes, cylinders, spheres, torus...), we have named our prims in a special way so that they can be detected by henshin transformer.

To link these names to the basic prim in SL, what we do is enclosing the design with a configuration file which contains the following specifications:

• AutoCAD solid name.
• SL Building block type.
• Size and base rotation values in SL
• Values for that prim's modifiers (they match it "visual" shape in AutoCAD)