Creating a Freeform Roof

Freeform Roof lets you create a roof with an arbitrary shape.

Select the mass for the freeform roof as follows:
1. From the Freeform Roof dialog box, click External Space for Freeform Roof .
2. In the 3D area, click the mass on top of which you want the freeform roof.
Select the solid for the freeform roof as follows:
1. In the Freeform Roof dialog box, click Select Freeform Reference .
2. In the 3D area, click the solid for the freeform roof.
In the Freeform Roof dialog box, click .